Heinzmann StG 2120 Series User manual

Heinzmann GmbH & Co. KG
Engine & Turbine Management
Am Haselbach 1
D-79677 Schönau (Schwarzwald)
Germany
Phone [phone]
Fax [phone]
E-mail [email protected]
www.heinzmann.com
V.A.T. No.: DE145551926
HEINZMANN
Electronic Speed Governors
Explosion Proof Actuators
StG 2120.xx
StG 30.90-xx
StG 40.90-xx
Copyright 2001 by Heinzmann GmbH & Co. KG. All rights reserved. This document may not be reproduced or handed on to third parties.
Manual T 02 001-e / 12-09

Read this entire manual and all other publications appertaining to the
work to be performed before installing, operating or servicing your
equipment.
Practice all plant and safety instructions and precautions.
Failure to follow instructions may result in personal injury and/or
damage to property.
HEINZMANN will refuse all liability for injury or damage which
results from not following instructions
Please note before commissioning the installation:
Before starting to install any equipment, the installation must have been
switched dead!
Be sure to use cable shieldings and power supply connections meeting
the requirements of the European Directive concerning EMI.
Check the functionality of the existing protection and monitoring
systems.
To prevent damages to the equipment and personal injuries, it is
imperative that the following monitoring and protection systems
have been installed:
Overspeed protection acting independently of the speed governor
Overtemperature protection
HEINZMANN will refuse all liability for damage which results from
missing or insufficiently working overspeed protection
Generator installation will in addition require:
Overcurrent protection
Protection against faulty synchronization due to excessive frequency,
voltage or phase differences
Reverse power protection
Overspeeding can be caused by:
Failure of the voltage supply
Failure of the actuator, the control unit or of any accessory device
Sluggish and blocking linkage
Warning
Danger
Danger
Danger!
High
Voltage
Danger

The examples, data and any other information in this manual are
intended exclusively as instruction aids and should not be used in any
particular application without independent testing and verification by
the person making the application.
Independent testing and verification are especially important in any
application in which malfunction might result in personal injury or
damage to property.
HEINZMANN make no warranties, express or implied, that the
examples, data, or other information in this volume are free of error,
that they are consistent with industry standards, or that they will meet
the requirements for any particular application.
HEINZMANN expressly disclaim the implied warranties of
merchantability and of fitness for any particular purpose, even if
HEINZMANN have been advised of a particular purpose and even if a
particular purpose is indicated in the manual.
HEINZMANN also disclaim all liability for direct, indirect, incidental
or consequential damages that result from any use of the examples,
data, or other information contained in this manual.
HEINZMANN make no warranties for the conception and engineering
of the technical installation as a whole. This is the responsibility of the
user and of his planning staff and specialists. It is also their
responsibility to verify whether the performance features of our devices
will meet the intended purposes. The user is also responsible for correct
commissioning of the total installation.
Warning
Danger

Contents
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
Contents
Page
1 Safety Instructions and Related Symbols ........................................................................... 1
1.1 Basic Safey Measures for Normal Operation.................................................................. 2
1.2 Basic Safety Measures for Servicing and Maintenance .................................................. 2
1.3 Before Putting an Installation into Service after Maintenance and Repair Works ......... 3
2 General ................................................................................................................................... 4
2.1 Scope of Delivery ............................................................................................................ 4
2.2 Description of Function................................................................................................... 5
3 Technical Informationen ...................................................................................................... 6
3.1 Technical Data................................................................................................................. 6
3.2 Measurements.................................................................................................................. 7
4 Mounting and Connection .................................................................................................. 10
4.1 Mounting ....................................................................................................................... 10
4.2 Electrical Connection .................................................................................................... 11
5 Operation ............................................................................................................................. 12
5.1 Commisioning ............................................................................................................... 12
5.2 Operation ....................................................................................................................... 12
6 Maintenance and Service.................................................................................................... 13
7 Download of Manuals ......................................................................................................... 14

1 Safety Instructions and Related Symbols
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx 1
1Safety Instructions and Related Symbols
This publication offers wherever necessary practical safety instructions to indicate inevitable
residual risks when operating the engine. These residual risks imply dangers to
persons
product and engine
environment.
The symbols used in this publication are in the first place intended to direct your attention to
the safety instructions!
This symbol is to indicate that there may exist dangers to the engine, to
the material and to the environment.
This symbol is to indicate that there may exist dangers to persons.
(Danger to life, personal injury)
This symbol is to indicate that there exist particular dangers due to
electrical high tension. (Mortal danger).
This symbol does not refer to any safety instructions but offers important notes for
better understanding the functions that are being discussed. They should by all
means be observed and practised. The respective text is printed in italics.
The primary issue of these safety instructions is to prevent personal injuries!
Whenever some safety instruction is preceded by a warning triangle labelled “Danger” this is
to indicate that it is not possible to definitely exclude the presence of danger to persons,
engine, material and/or environment.
If, however, some safety instruction is preceded by the warning triangle labelled “Caution”
this will indicate that danger of life or personal injury is not involved.
Note
Warning
Dan
g
er
Danger!
High
V
olta
g
e

1 Safety Instructions and Related Symbols
2 Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
The symbols used in the text do not supersede the safety instructions. So please do not
skip the respective texts but read them thoroughly!
In this publication the Table of Contents is preceded by diverse instructions that
among other things serve to ensure safety of operation. It is absolutely imperative
that these hints be read and understood before commissioning or servicing the
installation.v
1.1 Basic Safey Measures for Normal Operation
The installation may be operated only by authorized persons who have been duly
trained and who are fully acquainted with the operating instructions so that they are
capable of working in accordance with them.
Before turning the installation on please verify and make sure that
- only authorized persons are present within the working range of the engine;
- nobody will be in danger of suffering injuries by starting the engine.
Before starting the engine always check the installation for visible damages and make
sure it is not put into operation unless it is in perfect condition. On detecting any faults
please inform your superior immediately!
Before starting the engine remove any unnecessary material and/or objects from the
working range of the installation/engine.
Before starting the engine check and make sure that all safety devices are working
properly!
1.2 Basic Safety Measures for Servicing and Maintenance
Before performing any maintenance or repair work make sure the working area of the
engine has been closed to unauthorized persons. Put on a sign warning that maintenance
or repair work is being done.
Before performing any maintenance or repair work switch off the master switch of the
power supply and secure it by a padlock! The key must be kept by the person
performing the maintenance and repair works.
Before performing any maintenance and repair work make sure that all parts of engine
to be touched have cooled down to ambient temperature and are dead!
Refasten loose connections!
Replace any damaged lines and/or cables without delay!

1 Safety Instructions and Related Symbols
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx 3
Keep the cabinet always closed. Access should be permitted only to authorized perssons
having a key or tools.
Never use a water hose to clean cabinets or other casings of electric equipment!
1.3 Before Putting an Installation into Service after Maintenance and Repair
Works
Check on all slackened screw connections to have been tightened again.
Make sure the control linkage has been reattached and all cables have been reconnected.
Make sure all safety devices of the installation are in perfect order and are working
properly!

2 General
4 Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
2General
2.1 Scope of Delivery
Actuator StG 2120.xx or Actuator StG xx.90-xx
Optionally: Coupling
Optionally: 1" control valve or 1.5" control valve for metering gaseous fuel for gas
turbines
Optionally: Control lever
The following cable glants M 20x1,5 can be used:
Manufacturer: AGRO AG
Type: 1820.11.26
Test certificat: PTB 00 ATEX 1059
Manufacturer: Hawke
Type: 501/453 RAC
Test certificat: BAS 01 ATEX 2072X.
Manufacturer: Hawke
Type: CSB 656
Test certificat: BAS 01 ATEX 2079X

2 General
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx 5
2.2 Description of Function
The explosion-proof actuator types StG 2120.xx and StG xx90-xx, type of protection
flameproof enclosure “d”, are used for actuating gas valves in gas turbine control
applications.
These actuators are distinguished by following features:
Fast response and high torque in either direction
Low consumption of electric energy
Operation within a wide range of supply voltage
To be mounted in any position
Test certificate for use in hazardous environments
The actuator represents the actuation unit within a closed control loop of gas, steam and
water turbines. By means of this unit, an electric signal from the control unit is converted
into mechanical movement for actuating valves of diverse design.
The rotating movement of the integrated actuator control output shaft of the StG2120
series is generated by a rotary magnet system. This design does not require any gearing.
For the StG xx.90-xx series DC disk motors are used as drives. Torque is transmitted to the
output shaft by a twin-stage gear.
Non-contacting sensing is used to scan the feedback cam on the control output shaft. The
electric signal is a function of the wave position.

3 Technical Informationen
6 Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
3Technical Informationen
3.1 Technical Data
Description StG 2120 StG 30.90-xx StG 40.90-xx
Rotation angle 68° 90° 90°
Max. torque 12 Nm 22 Nm 44 Nm
Torque in steady state
condition 4 Nm 7.5 Nm 14.5 Nm
Current consumption of
whole governor
Max. current 7 A approx. 5 A approx. 7 A
Safe current in steady
state condition approx. 2.3 A approx. 1.7 A approx. 2.3 A
Resistance of coil system ca. 2,1 Ohm ca. 2 Ohm ca. 1 Ohm
Number of cable bushings 2 x M 20x1,5 2 x M 20x1,5 2 x M 20x1,5
Ambiente temperature
during operation * -20°C up to +60°C -20°C up to +60°C -20°C up to +60°C
Type of protection „e“ II 2 G EEx d IIB
T5
II 2 G EEx d IIB
T5
II 2 G EEx d IIB T5
Protection grade IP 55 IP 55 IP 55
Weigth 31 kg 24.5 kg 24.5 kg
*Operating ambient temperature for StG 30.90-06: -20°C to +40°C

3 Technical Informationen
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx 7
3.2 Measurements
Figure 1: StG xx.90-xx
F¤ll ung Fuel Combust i ble
50
0
100
125+/-0,1
150
M8 90 20
162
62
22
19
17
108
178
12
70+/-0,1
104
82,5
M10
88
50
3,5
19,5
1770+/-0,1
130,5
M20x1,5
M20x1,5
100
F¤llung Fuel Combustible
0
50
100+/-0,1
274
295
35
90°
SAE-Serration
1/2"-36
166
214
21
21
86

3 Technical Informationen
8 Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
70
100+/-0,1
134
86
227+/-2
B
Screwing cable gland 20x1,5
Screwing cable gland 20x1,5

3 Technical Informationen
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx 9
A
B
168+/-0,1
225+/-0,1
253+/-0,1
Figure 2: StG 2120.xx
A
125+/-0,1
224
290
18
4xM10-20 tief
SAE-Serration
1/2"-36
SAE-Serration
1/2"-36
18
33
33

4 Mounting and Connection
10 Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
4Mounting and Connection
4.1 Mounting
Any works on the actuators may be performed only by properly trained
specialists and in compliance with applicable standards.
For metering gaseous fuels for gas turbines, both actuators are available as a complete set
with a 1" or 1.5" control valve.
The mounting location must be chosen in such a way as to avoid vibrations and shocks as
far as possible.
Furthermore, the mounting location of the actuator must be chosen in accordance with the
protection grade.
In principle, any mounting position is admissible. One should, however, avoid mounting
the actuators in such a way that the screwed cable glands are pointing upward.
Warning

4 Mounting and Connection
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx 11
4.2 Electrical Connection
Any works on the actuators may be performed only by properly trained
specialists and in compliance with applicable standards.
Be sure to follow the connection diagram of the plant manufacturer when installing the
electric connection. All cable sizes must be chosen in accordance with the specification.
Up to 10 m 2,5 mm2
More than 10 – 20 m 4,0 mm2
More than 20 – 40 m 6,0 mm2
The actuator is driven by a HEINZMANN control unit. In special
cases, the actuator may be connected to some other control as provided
by the plant manufacturer. This will, however, require that
HEINZMANN have explicitly agreed and that the specifications
provided by HEINZMANN be strictly observed
2
1
3
4
5
l
StG
1212 11 48 49
DC XX.2-01
JHMNG
KG 30 / KG 40
Figure 3: Electrical Connection
Good earthing according to standards must be ensured. The actuator type StG 2120.xx has
a separate earthing screw which must be secured properly.
Warning
Warning

Fehler! Verweisquelle konnte nicht gefunden werden. Operation
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
12
5Operation
5.1 Commisioning
Any works on the actuators may be performed only by properly trained
specialists and in compliance with applicable standards.
The user is responsible for correct and proper commissioning of the installation as a whole.
Please note before commissioning the installation:
Before starting to install any equipment, the installation must have been switched
dead!
Check the functionability of the existing protection and monitoring systems.
Commissioning may be conducted only with the cover of the terminal box mounted.
5.2 Operation
The actuator must be operated in such manner as to safely exclude any damages.
With particular regard to electric and technical operating, the device may be used only in
conformance with the specifications.
Warning

5 Maintenance and Service
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
13
6Maintenance and Service
Any repair work may be executed only and exclusively at the factory of the
manufacturer.
Before cleaning the device, make absolutely sure that it has been switched
dead!
The device must be regularly checked for damages.
The exterior of the device must be kept in orderly condition. The surface may not be damaged
mechanically or by chemical substances.
For cleaning the device, only methods conforming with the protection grade may be applied.
The actuator must always be kept in clean condition. In order to prevent accumulation of heat,
any soiling of the exterior should be avoided.
The device may not be opened under any circumstances by the user.
Warning
Warning

7 Download of Manuals
Explosion Proof Actuators StG 2120.xx, StG 30.90-xx, StG 40.90-xx
14
7Download of Manuals
Technical manuals can be downloaded in pdf-format from our homepage:
www.heinzmann.com
If the desired manual should not be available there, send an e-mail to:
[email protected]
or write to:
HEINZMANN GmbH & Co. KG
Technische Redaktion
Am Haselbach 1
D-79677 Schönau/Germany
Please include the following information:
your name
name and address of your company
e-mail or address where you want the manuals to be sent to (if different from above)
item code (as on front page, bottom right) and title of the desired manual
or alternatively the technical data of your HEINZMANN equipment
We would be pleased to receive your comments about the contents and presentation of our
publications. Send your comments to the e-mail or address shown above please.