Siemens 1D Series User manual

s
Operating manual
Siemens Electric Machines s.r.o.
Drásov 126
CZ 664 24 Drásov
http://www.siemens.cz/semd
Synchronous Generator
G
3~

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 2/42
Dear customers,
Now you become the owners of a synchronous generator produced by the Siemens Electric Machine,
s.r.o. It is a product of the company with many-years' tradition that was produced on the basis of operational
experience by a team of experts and skilled workers and which incorporates the latest know-how and
advanced technology. We produce the series of synchronous generators with power output from about 500
to 25 000 kVA, LV and HV options for all usual applications. We will fulfil your special demands on a generator
for special use or arrangement.
Team of company employees

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 3/42
Rev. Revised items Date Name
A 4.2.6 Fill the bearings with oil, oil cleanliness 22.02.13 Vesely
B 3.2.5 Anticorrosion treatment of machined parts and bearings
3.2 Storage conditions 07.03.13 Pochop
C 4.2.9 Alignment (rolling bearings)
4.2.10 Alignment (slide bearings) 14.03.13 Pochop
D
4.2.12 Checking the insulation resistance of stator winding
4.2.13 Insulation test for stator winding
4.2.14 Drying
4.4.1 Installation
05.09.13 Vesely
E
3.3 Storage with shaft in horizontal position
3.4 Putting into operation after storage period
3.5 Sealed packings
3.6 Inspection intervals during storage
3.7 Control check during storage
07.10.13 Pochop

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 4/42
Contents page
1Generally............................................................................................................................................. 7
1.1 Significant (relevant) terms........................................................................................................... 8
1.2 General safety information ........................................................................................................... 8
1.3 Type marking of generators ........................................................................................................ 10
2Description ........................................................................................................................................ 11
2.1 Technical description, variants .................................................................................................... 11
2.1.1 Machine ends designation....................................................................................................... 11
2.1.2 Cooling method, ventilation .................................................................................................... 12
2.1.3 Rotor ...................................................................................................................................... 13
2.1.4 Stator ..................................................................................................................................... 13
2.1.5 Bearings ................................................................................................................................. 13
2.1.6 Terminal box........................................................................................................................... 13
2.1.7 Measuring and protective circuits ............................................................................................ 13
2.2 Electric characteristics................................................................................................................. 13
2.2.1 Output and raise of the temperature ....................................................................................... 13
2.2.2 Short-term current overload.................................................................................................... 13
2.2.3 Voltage................................................................................................................................... 13
2.2.4 Shape of a voltage curve ......................................................................................................... 13
2.2.5 Asymmetric load ..................................................................................................................... 14
2.2.6 Short-circuit current ................................................................................................................ 14
2.2.7 Radio interference elimination................................................................................................. 14
2.2.8 Currents in star neutral points ................................................................................................. 14
2.3 Use............................................................................................................................................. 14
2.4 Warranties.................................................................................................................................. 14
2.5 Standards ................................................................................................................................... 14
3Transport and storage....................................................................................................................... 15
3.1 Safety recommendation.............................................................................................................. 15
3.2 Storage conditions...................................................................................................................... 16
3.2.1 If no dry storage condition is available ..................................................................................... 16
3.2.2 Rust protection ....................................................................................................................... 16
3.2.3 Rolling bearings ...................................................................................................................... 16
3.2.4 Sleeve bearings....................................................................................................................... 17
3.2.5 Anticorrosion treatment of machined parts and bearings ......................................................... 17
3.2.6 Condensation ......................................................................................................................... 17
3.3 Storage with shaft in horizontal position ..................................................................................... 17
3.4 Putting into operation after storage period .................................................................................. 18
3.5 Sealed packings .......................................................................................................................... 18
3.6 Inspection intervals during storage.............................................................................................. 19
3.7 Control check during storage ...................................................................................................... 19
3.7.1 Sealed packing........................................................................................................................ 19
3.7.2 Non-sealed packing................................................................................................................. 19
4Installation and operation ................................................................................................................ 20
4.1 Safety recommendation.............................................................................................................. 20
4.2 Preparation................................................................................................................................. 20
4.2.1 General inspection of machine ................................................................................................ 20
4.2.2 Locating ................................................................................................................................. 20
4.2.3 Foundation inspection ............................................................................................................ 20
4.2.4 Cooling................................................................................................................................... 21
4.2.5 Installation of machine............................................................................................................ 21
4.2.6 Fill the bearings with oil, oil cleanliness ................................................................................... 21
4.2.7 Connecting the oil supply system ............................................................................................ 22
4.2.8 Connection of cooling piping (air-to-water cooler, cooling lubrication system).......................... 22
4.2.9 Alignment (rolling bearings).................................................................................................... 23
4.2.10 Alignment (slide bearings)................................................................................................... 25
4.2.11 Securing of mechanical position .......................................................................................... 27
4.2.12 Checking the insulation resistance of stator winding ............................................................ 27
4.2.13 Insulation test for stator winding ......................................................................................... 27
4.2.14 Drying................................................................................................................................. 28
4.3 Electric installation...................................................................................................................... 29
4.3.1 Making the electrical connections............................................................................................ 29

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 5/42
4.3.2 Making the electrical connections............................................................................................ 30
4.3.3 Safeguarding .......................................................................................................................... 30
4.4 First start and operation.............................................................................................................. 30
4.4.1 Installation.............................................................................................................................. 30
4.4.2 Change of rotating direction.................................................................................................... 31
4.4.3 Operation ............................................................................................................................... 31
4.4.4 Check of operation.................................................................................................................. 31
4.4.5 Intervals of preventive inspections........................................................................................... 31
4.4.6 Putting out of operation.......................................................................................................... 32
4.4.7 Operational log....................................................................................................................... 32
4.5 Diagnostics of defects ................................................................................................................. 33
4.5.1 Mechanical causes .................................................................................................................. 33
4.5.2 Electric causes I....................................................................................................................... 34
4.5.3 Electric cause II ....................................................................................................................... 35
5Maintenance ..................................................................................................................................... 36
5.1 Safety recommendation.............................................................................................................. 36
5.2 Five safety rules.......................................................................................................................... 36
5.3 Inspection of insulation condition................................................................................................ 36
5.4 Cleaning..................................................................................................................................... 36
5.5 Bearing maintenance .................................................................................................................. 37
5.5.1 Antifriction bearings................................................................................................................ 37
5.5.2 Sliding bearings ...................................................................................................................... 37
6Disassembly and regressive assembly.............................................................................................. 38
6.1 Dismantling and reassembling machines 1D ................................................................................ 38
7Regulation......................................................................................................................................... 39
7.1 General description, control principle .......................................................................................... 39
7.2 Range of voltage regulation ........................................................................................................ 40
7.3 Regulation accuracy.................................................................................................................... 40
7.4 Dynamic states of voltage ........................................................................................................... 40
7.5 Parallel operation........................................................................................................................ 40
8Neutral wire ...................................................................................................................................... 41
8.1 Generally.................................................................................................................................... 41
9Generator disposal after lifetime expiration .................................................................................... 41
10 Contacts ......................................................................................................................................... 42
10.1 Customer Service – Manufacturer ............................................................................................... 42
10.2 Service Coordination Center and Industry Hotline – Worldwide .................................................... 42
10.2.1 I CS LS LD - USA territory...................................................................................................... 42
List of figures
Fig. 1 Machine ends ................................................................................................................................... 11
Fig. 2 Closed circuit .................................................................................................................................... 12
Fig. 3 Open circuit...................................................................................................................................... 12
Fig. 4 Transport of machine........................................................................................................................ 15
Fig. 5 Example for axial shaft blocking ....................................................................................................... 16
Fig. 6 Humidity indicator ............................................................................................................................ 18
Fig. 7 Transport bracing.............................................................................................................................. 21
Fig. 8 Example of flanges flexible connection.............................................................................................. 22
Fig. 9 Checking the alignment of shafts ...................................................................................................... 24
Fig. 10 Axial alignment of the rotor in D-end bearing .................................................................................. 25
Fig. 11 Example of axial measurement, view of measuring points at DE ...................................................... 25
Fig. 12 Measuring points for radial alignment ............................................................................................. 26
Fig. 13 Recommended stator terminal arrangement.................................................................................... 29
Fig. 14 Dismantling and reassembling......................................................................................................... 38
Fig. 15 Regulation ...................................................................................................................................... 39
List of tables
Tab. 1 Check intervals ................................................................................................................................ 19
Tab. 2 Oil cleanliness requirements ............................................................................................................ 22
Tab. 3 Deviations ....................................................................................................................................... 24
Tab. 4 Permissible deviations...................................................................................................................... 26

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 6/42
Tab. 5 Minimum value of insulation resistance............................................................................................ 27
Tab. 6 Tightening torques for screwed electrical connections ...................................................................... 29
Tab. 7 Minimum air distance ...................................................................................................................... 30
Tab. 8 Visual inspection of the machine...................................................................................................... 30
Tab. 9 Mechanical causes ........................................................................................................................... 33
Tab. 10 Electric causes I.............................................................................................................................. 34
Tab. 11 Electric causes II............................................................................................................................. 35

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 7/42
1Generally
Herein submitted operational instructions refer only to standard type. Possible dissimilarities from standard
model (special models) are described in enclosures or supplements of operational instructions.
NOTICE: Contents of operational instructions and production documentation is not the part of previous or
current agreements promises or juridical relations or is not to change above mentioned. All obligations of
SIEMENS result from existing purchase contract that also contains complete and valid delimitation of
warranties. These contractual warranty contracts are neither limited nor extended by elaboration of these
instructions and documentation.
Therefore the workers responsible for safety operation of a
device have to secure the following:
- only qualified operators have to be authorised to attend these
machines
-these operators and the others must always have submitted
operational instructions and the other production
documentation at their disposal in the course of all
corresponding operations and have to adhere to this
documentation consistently.
-unqualified people are forbidden to operate the machines
and keep in their surrounding.!!!
Danger
Electric machines are operational
devices to be used in industrial heavy-
current machinery. In the course of
operation these operational devices
have dangerous voltage, conductive
bare parts, moving or rotating parts.
Therefore they can cause the worst
injuries or damage to properties in
case of inadmissible removing of
covers, unprofessional handling,
incorrect manipulating or insufficient
maintenance.

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 8/42
1.1 Significant (relevant) terms
Warning terms such as DANGER, WARNING, CAUTION and RECOMMENDATION which are mentioned in
this operational instructions are used to inform about danger or extraordinary information that require special
marking.
DANGER means that in case a person does not adhere to it, his life can be jeopardised or he may cause
damage to property.
WARNING means that in case a person does not adhere to it, he may induce difficult injury or cause damage
to property.
CAUTION means hat in case a person does not adhere to it, he may induce an injury or cause damage to
property.
RECOMMENDATION means that there are extraordinary and special technical connections that are not
obvious even for experts.
Regardless, it is also necessary to adhere to recommendations that are not specially emphasized,
regarding transport, operation and maintenance as well as technical data (which are given in operational
instructions, production documentation and on the machine itself) to prevent breakdown which can either
directly or indirectly induce difficult injuries of people or cause damage to property.
Qualified staff are operators who were in charge of safety of device, who are able to perform all
necessary activities and at the same time recognize and prevent possible danger. These operators have to
perform above mentioned as the result of their education, experience, previous training as well as acquiring
knowledge of standards, provisions, regulations, safety of work and working relations.
Above all qualification of staff providing service and maintenance has to correspond to the laws
concerning work on heavy-current devices of a particular country which the device is operated in.
Besides, knowledge of provisions of first aid and local rescue devices is necessary as well.
Concerning work on heavy-current devices, restriction of employing unqualified people is determined
in e.g. IEC 60364-4-41:2.
1.2 General safety information
Herein mentioned machines are parts of heavy-current devices for industrial extent of use. They are
produced in compliance with corresponding and acknowledged technical regulations.
WARNING: It is supposed that basic planned operations with a device as well as all operations concerning
transport, assembly, installation, launching, maintenance and repairs will be performed by qualified staff or
checked by responsible experts.
Concurrently it is necessary to take the following into consideration:
Technical data and data of admissible use (assembly connection terms, environmental terms and operational
terms), which are, among others, stated in a catalogue, in operational instructions, orders, name plates and in
the other technical documentation.
General establishing and safety provisions. Local provisions and requirements which are specific for the
device. Qualified use of tools, lifting and transport devices. Use of personal protective devices.
Duty of responsible people to take part in training on safety of employees in accordance with SAFETY
PROVISIONS as well as keeping to the laws of a country in which the device is operated. Above all the laws,
concerning protection of environment, handling with waste, safety use of substances that are dangerous for
lives or environment e.g. cleaners, lubricants, adhesives, varnishes etc. Detailed information about these
special products can be found in a “list of safety data” provided by producers or importer of a product.
Operational instructions cannot contain all detailed information concerning different construction variants
and cannot take into consideration every possible occurrence of installation, operation or maintenance owing

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 9/42
to the loss of lucidity. Therefore operational instructions designed for qualified operators (see above
mentioned) contain such recommendations that are necessary if a machine is used in accordance with
provisions in the extent of industrial operation.
If there are special requirements concerning nonindustrial area (e.g. protection against dangerous
touch of children fingers and so on), these conditions have to be secured on the device by means of
supplementary protective provisions.
If there are any discrepancies, especially missing information which specify a product, sales department of
SIEMENS is in charge of providing necessary explanation. Concerning this matter we ask you to mention
mainly type and production number of a machine, please.
Concerning planning, assembly, launching and service we recommend using the promotion and
services of appropriate service centre of SIEMENS.
RECOMMENDATIONS: Other detailed information concerning general works e.g. checking of delivered coils
(damages which can be caused during transport), long term storage and preserving of machines, checking of
footing, connection stretching, erection (setting) and (seating), levelling of a machine and others could be
found in our “Assembly materials” or (newly) in “Operational instructions”. These materials could be obtained
in SIEMENS sales department.

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 10/42
1 D C 06 24- 4 A V 03 -Z
Diameter of stator core (coded)
Standard frame size just For 1DB, 1DC
400 mm frame size 03
450 mm frame size 04
500 mm frame size 05
560 mm frame size 06
630 mm frame size 08
710 mm frame size 10
800 mm frame size 12
Rotor type
cylindrical rotor B
salient pole rotor C
cylindrical rotor, steam and gas turbine U
Salient pole rotor, water turbine H
Salient pole rotor, piston machine K
Stator frequency and voltage
Hz/kV
B 50/ <6.3
C 50/ 6.3
D 50/ 6.3 - 11.0
E 50/ 11.0
F 50/ >11.0
H 60/ <4.16
J 60/ 4.16
K 60/ 4.16 - 6.6
L 60/ 6.6
M 60/ 6.6 - 13.8
N 60/ 13.8
P 60/ >13.8
V 50/≤0.5
W 50/≤1.0
X 60/≤0.5
Y 60/≤1.0
1.3 Type marking of generators
Degree of protection
IP 00 0
IP 11 1
IP 20 2
IP 21 3
IP 23 4
IP W24 5
IP 44/54/55/56 Tube 6
IP 44/54/55/56 CACA 7
IP 44/54/55/56 CACW 8
Synchronous machine D
Number of pole pairs
Mounting and Ex-protection
A IM B... no Ex-protection
B IM B... E(Ex) p
C IM B... E(Ex) n, E(Ex) e
D IM 7… no Ex protection
E IM 7… Ex protection
F IM B… Eex n, e
Length of stator core (coded)

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 11/42
2Description
2.1 Technical description, variants
Machines series, 1D are three-phase brushless synchronous LV and HV generators with a salient-type or
cylindrical rotor. They consist of an AC generator (main machine) and an exciter with rotating rectifier. Main
machine and exciter rotors are fitted together with rotating rectifier and fan on the same shaft. Voltage
regulating parts are located in a terminal box or belong to machine supply being installed in switchboard. All
these parts form a compact component along with welded cover and bearings.
2.1.1 Machine ends designation
For a clear description machine ends are designated as follows (
Fig. 1) DE side being at free shaft end where generator drive is connected. Machine sense of rotation is
defined when viewed from this machine side. The other machine side is designated as NDE with no shaft
outlet; also exciter with rotating rectifier are mounted here.
Fig. 1 Machine ends
DE NDE

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 12/42
2.1.2 Cooling method, ventilation
Ventilation method is based on operating conditions and client’s demands. Machine cooling proceeds by
two methods: in the first one open ventilation system (Fig. 3) sucks ambient air to cool the winding, warmed
air is exhausted by fan to the atmosphere on AS side. The other cooling method makes use of internal cooler
(Fig. 2). It is a closed circuit air-circulation system, in which air is cooled in a water or air cooler and returned
back to the main machine. This system is applied if a higher degree of protection is required.
Fig. 2 Closed circuit
Fig. 3 Open circuit
1 Rotor
2 Stator
3 Fan
4 Cooler
5 Housing top
1 Rotor
2 Stator
3 Fan
4 Housing top

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 13/42
2.1.3 Rotor
Main machine and exciter rotors are fitted together with rotating rectifier and fan on the same shaft.
Generator rotor is a compact component with cylindrical or salient-type poles and a squirrel-cage damper in a
magnetic field. The rotor itself is supported by two bearings and is extended at the drive end. It is press-fitted
on the shaft and excited by an integrated exciter. Exciter rotor with plain poles is mounted on machine NDE
side. Rectifier in rotor circuit is fitted outside the machine on NDE side and is accessible after dismantling
rectifier cooler.
2.1.4 Stator
Main machine stator consists of a welded chassis in which a stator bundle is press-fitted and locked against
rotating. Stator bundle has a stator-sheet core, a main and auxiliary winding. Exciter stator is mounted in the
end shield on machine NDE side and is of a pole type. It is provided with permanent magnets intended to
excite the machine during starting.
2.1.5 Bearings
Generators are standard equipped with antifriction bearings with relubrication and grease amount
regulator. They are fitted in end shields. On request also plain bearings are mounted. In this case operating
instructions are complemented by a detailed description incl. operation.
2.1.6 Terminal box
Main winding spacious terminal box is fitted on the top of generator stator box. It contains all equipment
necessary for generator connection and operation. Standard generator model is supplied with an unbored
cable entry plate. PG screwed cable entry glands can be supplied on request. Regulation and measuring
circuits are always led to an independent LV terminal box.
2.1.7 Measuring and protective circuits
Generator is standard equipped with (if not otherwise requested): temperature sensors Pt 100 in stator
winding, bearing thermometers Pt 100 or 2xPt 100 in bearing caps, probes for mounting heating bodies.
On request sensors of internal air temperature and cooler water seepage can be fitted.
2.2 Electric characteristics
2.2.1 Output and raise of the temperature
Determined output that is stated on the name plate is intended for long-term operation with symmetrical
load, prescribed frequency and voltage, power factor cosϕ= 0,8 to 1,0, ambient air temperature according to
requirement and altitude of machine location up to 1000 m. Simultaneously, the machine is used in
compliance with temperature class (155) Faccording to IEC 60034-1.
2.2.2 Short-term current overload
Machines can bear short-term overload according to IEC 60034-1.
2.2.3 Voltage
Machines are standardly supplied with a star connection for voltage according to machine name plate.
ATTENTION!! Machines can be operated at voltage according to machine name plate.
2.2.4 Shape of a voltage curve
Time behaviour of terminal voltage during idle running and during symmetrical linear load is virtually
sinusoid with upper frequency response according to IEC 60034-1.

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 14/42
2.2.5 Asymmetric load
Asymmetric load according to IEC 60034-1-22
2.2.6 Short-circuit current
During symmetrical three-phase short-circuit the value of short-time short-circuit current makes minimally
triple of nominal current. Short-circuit current must be switched off within 3 s.
2.2.7 Radio interference elimination
Generators correspond to interference elimination degree according to IEC 60034-1.
2.2.8 Currents in star neutral points
If star neutral points of generators are connected mutually or with neutral points of transformers and
appliances directly, then transient currents with triple determined frequency could appear in conductor
among neutral points. To prevent thermal jeopardy of generators, transient currents should not exceed 50 %
of nominal current of generator. Higher currents should be reduced outside of device by means of current
limiting choke or similar devices.
2.3 Use
Generators are used in land central offices and in naval shipboard networks for long-term or reserve
operation. They can be driven by combustion engines, gas of water turbines or electromotors. They can run
individually, parallelly with similar device or it is possible to connect them to public network.
2.4 Warranties
Warranties refer to adhering of operational instructions and permissible operational terms. If these
provisions are not adhered, it can result in refusing of warranty claims. During claim or with spare parts order
it is necessary to provide factory (production) number and if need other data stated in output name plate. The
user is obliged to keep the operational log, and he can dismantle the generator only if approved by the
producer otherwise the producer shall be released from the obligations under its warranty. During the
warranty and after the warranty period, the user must not make any external and internal intervention in the
machine design.
2.5 Standards
Generator design corresponds to standards IEC 60034-1. If required, generators can meet requirements of
other standards and regulations.

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 15/42
3Transport and storage
3.1 Safety recommendation
! WARNING. During any lifting or transport of an aggregate it is necessary to use only openings that are
provided for lifting and transportation, gripping lugs or pins in foundation plate! Lifting should be performed
for axially symmetrical places at least see (Fig. 4). Aggregates must not be lifted hanging on individual parts
of a machine! Existing accessory lifting lugs e.g. on bearing shields, cooler superstructure etc. are provided
only for lifting of these individual parts of the machine.
Lifting capacity of applied lifting device should be taken into consideration! Lifting devices should be
chosen with respect of the weight of machine. Appropriate guiding of ropes should be used with possible
superstructures or extension.
Fig. 4 Transport of machine

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 16/42
3.2 Storage conditions
Generator and its accessories must be professionally stored before installation if necessary. They must be
protected from humidity, harmful environmental conditions and from other strange influences. Dew point
level must not be reached because of corrosion. If the machine is placed in a transport box, it must be
removed out of it before storage.
Storage areas must be clean, dry, closed, properly ventilated and protected from tremors. Conditions shall be
ensured by compliance with the following recommendations:
•The relative humidity should be kept below 50%
•Temperature ranges for storage should be between 5 - 20˚C
Generator is prepared for 6 months storage after dispatch from the factory to the customer. In the case of
long term storage, more than 6 months, some requirements such as protection of bearings, extended shaft
end, foots or sealed packing with dehumidifiers, etc must be taken into consideration for proper functioning
after storage. For some additional information about long term storage of entire machine or its parts
(bearings, etc) please ask Siemens Electric Machines s.r.o (see chapter 10) for manual Storage of motors and
generators.
3.2.1 If no dry storage condition is available
-air-tight film packing
-bags with hygroscopic material inside film
-humidity indicator inside film
-regular inspections
3.2.2 Rust protection
-All accessible bright arts (e.g. shaft extension, flange, feet) have a protective coat for 6 months storage
under dry condition
-for longer storage time all accessible bright parts have to be provided with a long-term anti-corrosion
coating (e.g. plastics lubricant LV 2-3 )
-regular inspections and repeated anti-corrosion coating if necessary
3.2.3 Rolling bearings
-The rotor of generators with cylindrical roller bearings or single angular-contact ball bearings has to be
axially locked to prevent bearing damage
-don´t remove shaft blocking (Chyba! Nenalezen zdroj odkazů.) fitted by SIEMENS (rotor shipping brace)
or remount it after no load tests
-if shaft block was removed to fit the transmission element (coupling, belt pulley), other measures for
shaft blocking have to be ensured
Fig. 5 Example for axial shaft blocking

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 17/42
3.2.4 Sleeve bearings
Sleeve bearings are generally delivered without oil !
-generators should be stored also without oil filling
-shaft bearing journals are provided with an anti-corrosion oil film which dissolves in lubrication oil
during operation
-delivered corrosion oil film protection is designed for a storage life of one year under dry condition
-for longer storage bearings have to be disassembled and bearing journals and parts have to be provided
with a long-term protection coat (e.g. Tectyl 511) See operating instructions - Instructions for
Maintenance and Inspection from manufacturer.
3.2.5 Anticorrosion treatment of machined parts and bearings
3.2.6 Condensation
-Generator with protection class IP54 or higher can be provided with condensate drain holes closed by
plastic plugs.
-the environmental conditions (e.g. big temperature fluctuations) may require the removal of these
plugs. The nominal degree of protection will then be only IP44.
-if installed in generator, the anti-condensation heater should be connected to mains (not necessary, if
you have a dry, well ventilated and air-conditioned storage room).
3.3 Storage with shaft in horizontal position
Machine has to stand on the wooden frame in working position and fasten to the frame. Dimensions of
wooden frame must be identical according to foundation dimensions of the machine and must protect
exposed shaft end or protruding parts from direct contact with ground (see dimension drawing).
All metallic parts (exposed shaft areas, feet, flanges) have to be coated by Tectyl 502 without cleaning in case
of using Tectyl 511 as a primary protection. Cleaning of all metallic parts must be done properly in case of
using different anti corrosion agent from Tectyl.
It is necessary to rotate by rotor 1 time per half a year about 90° - 120°. Rotor fixation must be disassembled
before rotor rotation and after that rotor must be fixed again.
CAUTION
Roller bearing lubricant
At storage longer than 3 years, bearing lubricant must be completely replaced – type of lubricant is
according to customer’s specification or contact Siemens service. See disassembly procedure of the roller
bearings and lubricant renewal in customer documentation.
Anticorrosion treatment of slide bearings
Slide bearings must be always treated against corrosion before storage and transportation. In case of
doubts or additional question contact Siemens Electric Machines a.s..
You can find contact in chapter 10.
WARNING

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 18/42
3.4 Putting into operation after storage period
The steps bellow must be done before putting machine into operation after storage period. Complete
procedure for motor installation with all steps included you can find in chapter 4
- Unpacked carefully sealed packed machine without damaging the machine itself
- Check visually whole machine internals for corrosion and other deficiency in primer coating
- Remove completely all anticorrosion treatment on the shaft and all metal parts
- Measure insulation resistance – see chapter 4.2.13
- Check and tighten terminal screws
- Check all screws for proper tightening
3.5 Sealed packings
Sealed packings are used for delicate components.
In contrast to standard packings, machine parts are completely enveloped in plastic foil wrappings whose
seams are welded to make an air-tight seal. As much of the air as possible inside the foil wrapping is first
removed by suction. The amount of desiccant to be enclosed is calculated for the specified duration of
transport and storage, taking into account the climatic zones involved. All sharp corners and edges are
padded to prevent the wrapping from ripping.
All cases should be subjected to an immediate visual inspection on arrival to make sure the packing, the
contents and the seals are undamaged. If humidity indicators have been provided, the sealed packings must
be inspected visually 1 to 2 days after storage.
If humidity indicators are provided in the sealed wrapping, there is an inspection opening in the external
packaging, the cover of which can be unscrewed. Humidity indicators change their colors from blue (dry) to
pink (damp) to indicate the humidity level (relative humidity) within the sealed plastic wrapping.
Fig. 6 Humidity indicator
NOTE
See chapter 4for complete information about machine installation (Alignment, foot check, etc.).
IMPORTANT
Humidity indicators recondition themselves automatically, i.e. they do not indicate whether the humidity
inside the packing was too high at an earlier time.
IMPORTANT
If cases have been opened in the ports of arrival and the sealed wrappings have been damaged or if
cases have been damaged during transport, the sealed wrappings must be repaired as quickly as possible
(if possible) in order to ensure proper storage, especially in tropical areas. Opening or damage to the
wrappings must berecorded in writing and immediately reported to the project manager/site supervisor.

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 19/42
The accuracy of the humidity indicators depends heavily on the temperature. When the ambient temperature
is 20° C, they are sufficiently accurate but, at other temperatures, the humidity levels they indicate are too
high.
If the relative humidity rises above 60 %, a check must be made to make sure that the contents and the
packing are undamaged. To do this, open the case carefully and check the contents for corrosion.
The date of initial conservation as well as the expiry date is marked on the cases.
Date of initial conservation: Month Year
Expiry date: Month Year
Check the effectiveness of sealed wrappings every 8 weeks if no other intervals have been specified.
The results of such inspections must be recorded. Cases in which the relative humidity has risen rapidly or
stayed at a high level must be checked.
3.6 Inspection intervals during storage
Customer shall carry out the regular inspection of the stored machine in consideration of way of storage. Each
inspection check must be recorded properly in the storage report. Inspection intervals must be done
according to the Tab. 1 Check intervals
Way of storage Inspection interval
Short term storage <2 years Every two months
Long term storage >2 years Once an half a year
Tab. 1 Check intervals
3.7 Control check during storage
3.7.1 Sealed packing
•Visual check of the humidity indicators. If the humidity indicator indicates a level of 50% or higher
the desiccant bags and humidity indicator card must be renewed and sealed packing and storage
conditions must be checked.
•Check the effectiveness of sealed wrappings (damage). The results of such inspections must be
recorded.
3.7.2 Non-sealed packing
•It is necessary to rotate by rotor 1 time per half a year about 90° - 120°. For this particular order is
allowed to rotate with rotor in horizontal position.
•Visual check of the thickness of preservation coat, in case the protective layer is damaged, it is
necessary to treat the damaged place again.
•Visual check of the machine. A service man shall carry out a check of machine preservation
treatment and shall write down storage conditions (temperature, humidity, dew point).
•Measuring of insulation resistance of stator winding. In case the value of insulation resistance is
lower than values given in chapter 4.2.13, it is necessary to dry the machine without delay by
checking the storage conditions and switching the heaters on.
WARNING
The anti-condensation heater must not be switched on when sealed packing is used.

s
Product documentation 1D 3.8.en Rev. E, 10/13 page 20/42
4Installation and operation
4.1 Safety recommendation
! WARNING Strictly adhere to ”General safety information”, please. In paragraph 1.2 of this Instructions,
recommendations concerning admissible use of machine and recommendations concerning required
professional knowledge that is necessary while operating heavy-current machinery.
Coverings must not be opened during operation (see also paragraph 5). Covers prevent from touching of
active or rotating parts or they are necessary for right routing of air and effective cooling.
For safety reasons, the machine can be started until the coupling is inserted at the free shaft end or after
dismantling the key at the free shaft end.
No higher speeds cannot be adjusted because this is ensured by right designed controlling and checking of
speeds. The only admissible speeds are these that are given according to output name plate.
4.2 Preparation
4.2.1 General inspection of machine
Generator must be properly inspected prior to erection (installation) with the aim to find out if there are
any damages caused during transport or storage. Any imperfections that are found out must be reported to a
supplier or transport company and must be professionally repaired. Remove preservative coating from metal
surfaces (feet, flange, free end, etc.) prior to machine seating and installation.
Insulation resistance must be inspected. Record the data measured to the operational log.
4.2.2 Locating
Generator must be located in the way that terminal box, bearings and accessories could be easily
approachable.
4.2.3 Foundation inspection
Before installing the machine, carefully check all foundation dimensions with the aid of the machine
dimension drawing and the foundation drawing, particularly - where applicable the positional accuracy of the
holes for mounting the machine on soleplates, the ducts for piping and cable.
Soft Foot Check The test conforms to API 541-4.3.1.15
The test is made to see if there is any bending of the base frame while fixing the mounting bolts.
Prior to any mechanical running test, a check for "soft feet" will be made.
After the machine has been aligned, shimmed, and firmly secured to the test base, a dial indicator micrometer
oriented in the vertical direction shall be attached at the mounting foot to be checked.
The micrometer is then zeroed, the mounting bolt or bolts loosened at the foot and the change in micrometer
reading noted. If the micrometer reading exceeds 0.025 mm, the mounting requires cleaning or re-shimming.
This soft foot check shall be performed at each mounting foot, with the other feet secured, until all
micrometer change readings are less than 0.025 mm. If there are intermediate bases, this check shall be
performed at each interface between the machine and the test floor.
During the shop running test of the assembled machine, vibration measurements will be made with the
machine properly shimmed and securely fastened to a massive foundation or test floor stand. Elastic mounts
are only used if they are available.