LEISTUNG AMS User manual

AMS
Air-insulated Metal-Clad Switchgear
3.3kV-40.5kV
User Manual

AMS
1 Technical Description ...........................................................................................................................5
1.1 General .................................................................................................................................................. 5
1.2 Applications .......................................................................................................................................... 6
1.3 Electrical Characteristics .................................................................................................................... 6
1.4 Terms and definitions .......................................................................................................................... 9
1.5 Operating Conditions ......................................................................................................................... 13
1.6 Degrees of protection .........................................................................................................................14
1.7 Colour of external surface .................................................................................................................14
1.8 Functional areas and compartments ................................................................................................14
1.9 Loss of service continuity ................................................................................................................ 15
1.10 Compartments .................................................................................................................................... 16
1.11 Interlocks ..............................................................................................................................................17
1.12 Arc proof ............................................................................................................................................ 18
1.13 Type Tests .... ...................................................................................................................................19
1.14 Mechanical Configurations .............................................................................................................20
2 Operation ............................................................................................................................................34
2.1 General ...............................................................................................................................................34
2.2 Circuit Breaker Identification ............................................................................................................34
2.3 Withdrawable Voltage Transformers ....................................................................................……….36
2.4 Vacuum Contactor ...........................................................................................................................37
2.5 Circuit Breaker Racking .................................................................................................................. 37
2.6 Earth Switch Operation ................................................................................................................... 41
2.7 Electrical Interlocks ..........................................................................................................................43
2.8 Mechanical Interlocks & Locks .........................................................................................................45
2.9 Troubleshooting ............................................................................................................................... 49
3 Installation of Switchgear ...............................................................................................................50
3.1 General Requirements ..................................................................................................................... 50
3.2 Installation of panels. ....................................................................................................................... 50
3.3 Floor Penetrations ..........................................................................................................................50
3.4 Main Busbar Installation .................................................................................................................53
3.5 Arc Tunnel ........................................................................................................................................56
3.6 HV Power Cable Installation ........................................................................................................... 57
3.7 LV Cable Installation ..........................................................................................................................57
3.8 Earthing ...............................................................................................................................................58
3.9 Final Assembly Checks .....................................................................................................................58
▎Contents

▎Contents
4 Commissioning ....................................................................................................................................................59
5 Transportation ............................................................................................................................. ..... ............... 59
5.1 General .................................................................................................................................... ………….....59
5.2 Dimensions and Weights ............................................................................................................ ................. 60
5.3 Loading, Transporting & Positioning Panels ........................................................................... ................. 60
5.4 Transporting with Rollers ......................................................................................................... ………........ 60
6 Storage ................................................................................................................................... ........... ………..... 61
7 Switchgear Maintenance ............................................................................................................... . ... ……...... 62
7.1 General ........................................................................................................................................ ........... ...... 62
7.2 Inspecting the Switchgear .................................................................................................... ...................... 62
7.3 Maintenance of the Switchgear ...................................................................................................... ....... .... 63

05
AMS
1 Technical Description
1. General
The “ AMS” series of switchgear is an air insulated, factory -assembled and type tested medium voltage
switchgear for indoor installations.The switchgear is an air insulated metal enclosed fully withdrawable
switchgear design, fittedwith Vacuum Circuit Breakers.
The AMS switchgear is fitted with VEP Embedded Pole Vacuum withdrawable circuit breakers. The
switchgear is of a front access design that allows efficient space utilisation within the switchroom. The
switchgear is designed for maximum safety, with all operations performed behind closed doors for
optimum safety, this includes isolationwithdrawal and application of earths via integral fault making
earthing switches to power circuits. The door to the circuit breaker compartment is interlocked such that
the door cannot be opened unless the circuit breaker is withdrawn to the isolated position, behind the
closed door. The circuit breaker status of open/closed/ racked in /racked out can be inspected through
the viewing window on the circuit compartment door.
In addition to VEP Embedded Pole Vacuum withdrawable circuit breakers, the switchgear can also be
equipped with vacuum contactor, and a voltage transformer truck. The switchgear is designed to meet
various system configurations as per individual project requirement.
The switchgear features partitioningbetween the busbars, the circuit breaker, the low voltage compartment
and the cable compartment. The generously dimensioned low voltage compartment is designed to both
modern and conventional control and protection systems. The AMS control panels can be combined
The functionalunits of the switchgear are guaranteed arc proof in accordance with the AS and IEC
Standards. All the start -up, maintenance and service operations can be carried out from the front.
The switchgear is designed in accordance with the Australian and IEC Switchgear Standards. The
switchgear is fully type tested and compliant with AS 62271.200:2005 and IEC 62271-200, Ed1.0
(2003). And the vacuum circuit breaker is fully type tested and compliant with AS 62271.100:2005
and IEC
62271-100, Ed 1.2 (2006). In addition to AS and IEC standards the switchgear also meets the
requirements of DIN and VDE (German) Standards.
•The main characteristicsof the switchgear are as follows:
•Metal-clad, air-insulated switchgear.
•Suitable for medium voltage distribution.
•Guaranteed arc-proof units.
•Factory-tested for indoor installations.
•Tested in accordance with AS and IEC Standards.
•Wide range of functional units available for all installation solutions.
•Compartments segregated by metallic partitions.
•Modular structure, easily built -up.
•
•Highly effective use of space.
•Start-up, maintenance and service operations can be carried out from the front.
•Apparatus handling with the door closed.
•Units can be installed against the wall.
•Limited and simple maintenance activities.
•Complete with mechanical safety interlocks.
•Earthing switchwith full making capacity.
•Designed to guarantee maximum service continuity.
•Conventional or integrated protection and measurement systems.

06
2. Applications
The switchgear has been designed and installed in the following type of applications:
Utilities and Power Plants
•Distribution and zone substations
•Power generation stations
•Transformer stations
•Main and auxiliary switchgear.
•Nuclear power stations
Industry
•Mining
•Pulp and Paper
•Cement
•Textiles
•Chemicals
•Food
•Automotive
•Petrochemical
•Quarrying
•Oil and gas pipelines
•Metallurgy
•Rolling mills
•Water and sewageworks
Transport
•Airports
•Ports
•Railways
•Underground transport.
Services
•Supermarkets
•Shopping malls
•Hospitals
•Large infrastructures and civil works.
3. Electrical Characteristics
No.
Description Unit AMS 12
AMS 24
1 Rated service voltage kV rms 11 22
2 System highest voltage kV rms 12 24
3 Rated frequency Hz 50
4 Rated current of main bus bar A rms 1250, 2000, 2500, 3150, 4000*
5 Rated current of branch bus bar A rms 630, 1250, 2000, 2500, 3150,
4000*
* - Forced cooling ventilationis required
Power frequency voltage that the
completely assembled group of
panels comprising a main bus will
withstand for 60 seconds
At factory
Atsite
Lightning impulse withstand voltage
(peak value)
Rated short time withstand current
(3 sec)
Rated peak withstand current (peak
value)
Resistance of main circuit
6
6.1
6.2
7
8
9
10
kV
rms 28
50
kV
rms 22.4
40
kV
rms 95
125
kA 20, 25, 31.5, 40,
50
kA 50, 63, 80, 125,
130
µΩ
≤150+CT*
(≤630A)
≤100+CT*
(≤1250A)
≤70+CT*
(≤2000A)
≤50+CT*
(≥2500A)

07
DQC-40.5
12
13 contacts at rated normal current
14.1
Secondary control voltage (DC) Vdc 48, 110, 220
14.2
Secondary control voltage (AC) Vac 110, 220
Rated voltage 50Hz for auxiliary
14.3
devices (lighting, heaters, spring Vac 240
charge motor, etc)
15 Minimum trip and close coil current A 1A @
220Vdc
Minimum permissible interval („dead
16 time‟) between break & high speed s180
making capacity
Minimum dc trip voltage at control
cabinet terminals at which total
17 short circuit break time (Item 12 %70
above) is valid (% of nominal dc
supply voltage)
18 Opening time
18.1
• Under no-load conditions ms 25 –35
18.2
• At rated breaking capacity ms 25 –35
Maximum temperature rise at rated
normal current (CB in unit)
Resistance voltage drop across
make at 100% rated breaking and
Maximum arcing time at the following
breaking capacities
19.1
• 100% rated asymmetrical ms
15ms
@
51%
19.2
• 100% rated symmetrical ms 15
19.3
• 60% rated symmetrical ms 15
19.4
• 30% rated symmetrical ms 15
19.5
• 10% rated symmetrical ms 15
19.6
• 5% rated symmetrical ms 15
Maximum impulse wave for which the
20 circuit breaker insulation will be
coordinated (with cables connected)
20.1
• Prospective peak kVp 95 125
20.2
• Wave shape µs
1.2/50
1.2/50
No.
Description Unit AMS12 AMS
24
11 Ingress Protection
11.1
•High voltage parts IP4X
11.2
•Open Enclosures IP2X
11.3
•Low voltage compartment IP2X
Maximum internal partial discharge at
120% rated phase-to-earth voltage
when tested in accordance with
AS62271.200
Number of opening operations
permissible before inspection and
maintenance of contacts and other
essential parts
•At rated normal current
•At rated breaking capacity
For Vacuum interrupters
•Method of testing
the integrity of
vacuum interrupters
ºC
mV
40
250
40
250
19
21 pC <20 <20
22
22.1
22.2 No. No. 10000 50 10000 50
23 Dielectrictest Dielectrictest

08
No.
24
24.1
24.2
•Interrupters Years 20
20
24.3
• Isolating contacts –CB Years 20
20
24.4
• Isolating contacts –Fixed Years 20
20
25 Busbar material Copper
26
27
28
29
30
30.1
30.2
30.3
30.4
31
32
33
34
34.1
34.2
35
35.1
35.2
36
37
38
39
40
41
41.1
41.2
Description
Minimum time interval between
inspections for lubrication and
maintenance of moving parts
•Mechanism and
drive system
Busbar method of clamping/fixing to
busbars
Busbar insulation
Material used for busbar insulation
Maximum allowable continuous
operating temperature of the
insulation material
Metal Enclosure
•Class
•Type
•Servicecontinuity
classification
•Partition class
Protectionof equipment against
mechanical impact
Insulating medium for all
compartments
Number of compartments in panel
Internal arcing fault (IAC) withstand –
AS 62271-200 Appendix A
IAC to AS 62271-200
Appendix A
•Accessibility type
Finishing coating –interior & exterior
•Atmospheric corrosive
category (AS2312)
•Thickness
Creepage distance
Cross section area of earth bar
Details of protection of secondary
wiring in main HV compartments
Busbar and cable shutters operate
and lock independently
Shutter bonded to panel earthing
system via adequate flexible earth
braids
Rated power frequency withstand
voltage
•Conductor to earth
•Across isolationdistance
Unit AMS12 AMS 24
Years 20
Bolt
Raychem
Epoxy Resin
20
ºC 115
Indoor
Withdrawable
LSC2B
PM
2J
Air
4
Yes
A,FLR
B
µm
mm/kV
mm2
75
20
30 x8mm
Metallic duct & sock
Yes
Yes
kV
kV 42
48 50 60

09
AMS
1.4 Terms and definitions
1.4.1 Switchgear and controlgear
General term covering switching devices and their combination with associated control, measuring,
protective and regulating equipment, also assemblies of such devices and equipment with associated
interconnections, accessories, enclosures and supporting structures
1.4.2 Metal enclosed switchgear and controlgear
Switchgear and controlgear assemblies with an external metal enclosure intended to be earthed and
completely assembled, except for external connections
1.4.3 Functional unit (of an assembly)
Part of metal-enclosed switchgearand controlgear comprisingall the components of the main circuits and
auxiliary circuits that contribute to the fulfilment of a single function
NOTE Functional units may be distinguished according to the function for which they are intended,for ex ample, incoming unit,
outgoing unit, etc
1.4.4 Multitier
Two or more functionalunits arranged vertically within a single enclosure
1.4.5 Transport unit
Part of metal-enclosed switchgear and controlgear suitable for shipment without being dismantled
1.4.6 Enclosure
Part of metal-enclosed switchgear and controlgear providing a specified degree of protection of equipment
against external influences and a specified degree of protectionagainst approach to or contact with live
parts and against contact with moving parts
1.4.7 Compartment
Part of metal-enclosed switchgear and controlgear enclosed except for openings necessary for
interconnection, control or ventilation
Four types of compartments are distinguished, three that can be opened, called accessibleand one
that cannot be opened, called non -accessible.
NOTE Compartments are identified according to the main component(s) contained therein.
No.
42
42.1
• Conductor toearth kV 75
125
42.2
• Across isolationdistance kV 85
145
43
43.1
43.2
43.3
43.4
43.5
Unit AMS 12 AMS 24 Description
Rated lightning impulse withstand
voltage
Maximum number of cables per
phase
•630A
•1250A
•1600A
•2000A
•2500A
4 cablesizes
4 cablesizes
6 cablesizes
6 cablesizes
6 cablesizes
Table 1 –Switchgear Electrical Characteristics
3 cablesizes
3 cablesizes
6 cablesizes
6 cablesizes
6 cablesizes

10
1.4.7.1 Interlock-controlled accessible compartment
Compartment containinghigh-voltage parts, intended to be opened for normal operation and/or normal
maintenance as stated by the manufacturer,in which access is controlled by integral design of the
switchgear and controlgear
NOTE Installation,extension,repairing,etc. are not considered as normal maintenance.
1.4.7.2 Procedure-based accessible compartment
Compartment containinghigh-voltage parts, intended to be opened for normal operation and/or normal
maintenance as stated by the manufacturer, in which access is controlled by a suitable procedure
combined with locking
NOTE Installation,extension,repairing,etc. are not considered as normal maintenance.
1.4.7.3 Tool-based accessible compartment
Compartment containing high-voltage parts, that may be opened, but not for normal operation and
maintenance. Special procedures are required. Tools are necessary for opening
1.4.7.4 Non-accessible compartment
Compartment containing high -voltage p a r t s t h a t m u s t n o t b e o p e n e d . Opening mayde storythe
integrity of the compartment. Clear indication not to open is provide d on/by the compartment
1.4.8 Partition
Part of metal-enclosedswitchgear and controlgear separating one compartment from other compartments
1.4.9 Partition class
Class defining whether metallic or non -metallicmaterial for separation to live parts is used
1.4.9.1 Partition class PM
Metal-enclosed switchgear and controlgear providing continuous metallic partitions and/or shutters (if
applicable), intended to be earthed, between opened accessiblecompartments and live parts of the
main circuit
1.4.9.2 Partition class PI
Metal-enclosedswitchgear and controlgear having one or more non -metallicpartitions or shutters between
opened accessible compartments and live parts of the main circuit
1.4.7.10 Shutter
Part of metal-enclosed switchgearand controlgear that can be moved from a position where it permits
contacts of a removable part, or moving contact of a disconnector, to engage fixed contacts, to a
position where it becomes a part of the enclosure or partition shielding the fixed contact
1.4.7.11 Segregation (of conductors)
Arrangement of conductorswith earthed metal interposed between them in such a manner that
disruptivedischarges can only occur to earth
NOTE A segregation maybe establishedb e t w e e n the conductors as well as between the open contacts ofa switchingd e v i c e or
disconnector.
1.4.7.12 Bushing
Structure carrying one or more conductors through an enclosure or partition and insulating it
therefrom, including the means of attachment

11
AMS
1.4.13 Component
Essentialpart of the main or earthing circuitsof metal -enclosed switchgear and controlgear which
serves a specificfunction (for example, circuit -breaker, disconnector, switch, fuse, instrument
transformer, bushing, busbar
1.4.14 Main circuit (of an assembly)
All the conductive parts of metal -enclosed switchgear and controlgear included in a circuit which is
intended to transmit electrical energy.
1.4.15 Earthing circuit
Connection of each earthing device, or points provided for earthing purposes, to the terminal intended to
be connectedto the earthing system of the installation
1.4.16 Auxiliary circuit
All the conductive parts of metal -enclosed switchgear and controlgear included in a circuit (other than the
main circuit) intended to control, measure, signal and regulate
NOTE The auxiliary circuits of metal-enclosed switchgearand controlgearinclude the control and auxiliary circuitsof the s witching
devices.
1.4.17 Pressure relief device
Device intended to limit the pressure in a compartment
1.4.18 Relative pressure
Pressure, referred to the standard atmospheric pressure of 101.3 kPa
1.4.19 Ambient air temperature (of metal -enclosed switchgear and controlgear)
Temperature, determined under prescribed conditions, of the air surrounding the enclosure of metal -
enclosed switchgear and controlgear
1.4.20 Removable part
Part of metal-enclosed switchgearand controlgear connected to the main circuitand that may be
removed entirely from the metal -enclosed switchgearand controlgear and replaced, even though the
main circuit of the functionalunit is live
1.4.21 Withdrawable part
Removable part of metal -enclosed switchgear and controlgear that can be moved to positions in which an
isolating distance or segregation between open contacts is established, while the part remains mechanically
attached to the enclosure
1.4.22 Service position (connected position)
Position of a removable part in which it is fully connected for its intended function
1.4.23 Test position (of a withdrawable part)
Position of a withdrawable part in which an isolating distance or segregation is established in the main
circuit and in which the auxiliary circuits are connected
1.4.24 Disconnected position (of a withdrawable part)
Position of a withdrawable part in which an isolating distance or segregation is established in the
circuits of the withdrawable part, that part remaining mechanically attached to the enclosure
NOTE In high- voltage metal-enclosed switchgear and controlgear, the auxiliary circuits may not be disconnected.