GE SF6 User manual

Content
Instruction Manual
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SF6circuit- breaker
GL317
With spring operating mechanisms
FK3- 4
Administrator First issue Compiled by Approved by
AHT 19- 11- 2012 J. Bossu V. Texier
Imagination at work Grid Solutions

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Copyright Notice E2016 General Electric Company. All rights reserved.
The information contained in this online publication is the exclusive prop-
erty of General Electric Company, except as otherwise indicated. You may
view, copy and print documents and graphics incorporated in this online
publication (the “Documents”) subject to the following: (1) the Documents
may be used solely for personal, informational, non- commercial purposes;
(2) the Documents may not be modified or altered in any way; and (3)
General Electric Company withholds permission for making the Docu-
ments or any portion thereof accessible via the Internet. Except as
expressly provided herein, you may not use, copy, print, display, repro-
duce, publish, license, post, transmit or distribute the Documents in whole
or in part without the prior written permission of General Electric Company.
The information contained in this online publication is proprietary and sub-
ject to change without notice. The software described in this online publi-
cation is supplied under license and may be used or copied only in accor-
dance with the terms of such license.
Trademark
Notices
GE and the GE logo are trademarks and service marks of General Electric
Company
* Trademarks of General Electric Company.
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Other company or product names mentioned in this document may be
trademarks or registered trademarks of their respective companies.
This equipment contains Fluorinated Greenhouse Gas (SF6) covered by the Kyoto Protocol, which
has a Global Warming Potential (GWP) of 22200. SF6should be recovered and not released into the
atmosphere. For further information on the use and handling of SF6, please refer to IEC 62271:
High-Voltage Switchgear and Controlgear - Part 303: Use and Handling of Sulphur Hexafluoride
(SF6).

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Introduction Your decision to use GE high voltage switchgear means that you have
chosen a product that is very advanced technically and has proven effec-
tive and reliable in the field.
The entire development and production process for our high voltage
switchgear is controlled by an ISO 9001 certificated quality management
system, an ISO 14001 certified environmental management system, and
the OHSAS 18001 occupational health and safety management system.
Regular audits guarantee that our products and services meet high quality
standard.
In order to ensure optimum operation (and take advantage of all product
benefits), please follow the instructions in this manual when installing,
commissioning and operating the equipment. In the event of problems or
equipment malfunction, please contact your local GE representative.
This manual describes installation, commissioning, operation, inspection,
maintenance and reconditioning. Additional copies of this manual can be
obtained from your local GE representative by specifying the OI- number.
GE’s high voltage switchgear units are specifically designed to allow for
long maintenance intervals. The operational reliability of the equipment is
guaranteed by proper servicing and by following the instructions given in
this manual. GE assumes no liability for damage due to failure to follow the
manual instructions.
The information contained within this document is to be considered for
information only. GE issues no guarantee as to its accuracy, integrity or
the fact that this information may be suitable for any particular product, in
so far as this information may vary as a function of technical and commer-
cial circumstances.
This document and the equipment described herein are subject to change
without notice in the interest of further development. No claims of any kind
may be derived from the specifications, figures or descriptions.
Grid Solutions SAS
21 rue Cyprian
69611 Villeurbanne Cedex
France
www.gegridsolutions.com

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Safety
Product safety sheets Annexes
Technical data
Technical characteristics Rating plate
Description and operation
General description of the circuit- breaker L12- 017EN/04
Description of the interrupting chambers L12- 105EN/04
Pole operation (interrupting principle) L13- 005EN/04
Operating device L14- 005EN/05
SF6gas monitoring L20- 001EN/08
Packaging - Shipping and storage
Packaging - Identification - Storage L22- 027EN/04

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Installation
Erection general instructions L30- 002EN/03
Tightening torques L31- 001EN/03
Erection general procedures L31- 003EN/03
Checking for presence of nitrogen (N2) in pole parts L31- 064EN/05
The installation procedure (advised), developed
below, imposes a lifting equipment with the following
characteristics :
NOTE : If it is impossible to obtain the advoc-
ated lifting equipment, one “complementary
installation procedure” is supplied in annexes.
3,000 daN)
(minimum)
H+2m
H
H+1m
Support- frame assembly L31- 139EN/03
Column - chambers coupling L31- 7137EN/02
Tipping down the pole of the circuit- breaker
and vacuum operation
L31- 721EN/04
Installing terminals with preparation of contact sur-
faces
L31- 731EN/04
Installing the capacitors L31- 741EN/05
Installing stress- shields on the interrupting
chambers
L31- 7510EN/02
Lifting and positionning the pole L31- 7606EN/04
Installing the operating device L31- 7902EN/02
Continued on next page.

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Installation, continued
Connection the vacuum pump L31- 853EN/04
Vacuum operation L31- 881EN/04
Calculation of the SF6gas filling pressure for using
the pressure gauge (tool)
L31- 922EN/04
Pre- filling with SF6gas at 0.05 MPa L31- 960EN/04
Filling with SF6gas L32- 007EN/07

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Commissioning
Pre- commissioning inspections L34- 011EN/09
Commissioning test report RES 310 M EN/14
Acceptance criteria CAEN 103 171/3/009
Maintenance
Maintenance plan L51- 004EN/07
Electrical wear limits L51- 052EN/05
Electrical contact densimeter threshold inspection L51- 108EN/06
Intervention on the operating device L51- 303EN/05

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Annexes
Tooling and accessories L60- 028EN/04
Product safety sheets PS0000/EN
End of equipment service life
Dismantling and recovery of
circuit breaker components
L80- 000EN/03
Managing SF6gas L80- 001EN/04
Directives for handling used SF6gas
and its by- products
L81- 001EN/03

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Complementary installation procedure
The complementary installation procedure,
developed below, imposes a lifting equipment with the
following characteristics :
+
3,000 daN)
(minimum)
H+2m
H
Support- frame assembly L31- 140EN/03
Lifting and positioning the pole L31- 200EN/07
Installing terminals with preparation of contact sur-
faces
L31- 512EN/03
Installing the capacitors L31- 610EN/03
Installing stress- shields on the interrupting
chambers
L31- 669EN/03
Column - chambers coupling L31- 7138EN/02
Installing the operating device L31- 7902EN/02
Installation, continued

Description and operation
General description of the circuit- breaker
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Circuit- breaker GL317 with spring operating mechanism FK3- 4
Description The circuit- breaker is made up of three poles, each activated by a spring
operating mechanism.
Diagram
B
A
C
D
Parts table The table below gives the main parts of the circuit- breaker :
Mark Component Page
APole of the circuit- breaker 2
BBearing structure 3
COperating device 4
DMarshalling cubicle 5

Description and operation
General description of the circuit- breaker
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Pole of the circuit- breaker
Description The pole of the circuit- breaker is made up with three main components :
SThe interrupting chambers (1).
SThe support column (2).
SThe housing of the mechanism (3).
Diagram
6
3
7
4
1
1
4
5
2
713
4
5
8
3
Interrupting
chambers
The pole is comprised of two interrupting chambers (1) - in a ceramic enve-
lope - equipped at each end with a corona ring (4) and an HV terminal (5).
The interrupting chambers are laid out horizontally and attached, at their
base, to a common housing (6). This housing contains the mechanism used
to transfer the operating movement to the mobile contacts of both chambers.
The interrupting can also be equipped with capacitors (7).
Support column Consisting of two, three or four ceramic insulators, the support column allows
the circuit- breaker to be ground- insulated and it also encloses the operating
tie- rod which is attached to the interrupting chamber’s moving contacts.
The support column can also be equipped with a corona ring (13).
Housing of the
mechanism
A housing (3) - situated at the base of the column - contains the lever and
crank assembly and which operates the moving contact.
The SF6filling and monitoring device (8) is also situated on the housing.

Description and operation
General description of the circuit- breaker
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Bearing structure
Description The support- frame (10) - made up with four supports fastened to the housing
(3) - supports all the circuit- breaker components.
The support- frame may be supplied by either Grid Solutions or the custom-
ers.
Diagram
10
3

Description and operation
General description of the circuit- breaker
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Operating device
Description The operating device (11) is a spring operating mechanism of the FK3- 4 type.
The door of the operating device (11) is equipped with two windows. These
windows permit to display the optical signalization of the circuit- breaker state
and closing spring state.
Diagram
3
11
Fastening The operating device is fastened on the housing (3).

Description and operation
General description of the circuit- breaker
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Marshalling cubicle
Description The marshalling cubicle (D) is fastened on the ground near the central
pole. Included with :
SThe relays required to operate the circuit- breaker.
SThe interconnection terminals boards.
SThe terminals boards.
Diagram
D

Description and operation
General description of the circuit- breaker
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Description and operation
Description of the interrupting chambers
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Presentation
Diagram
B
A
Parts table The table below gives the main parts of the interrupting chambers :
Mark Component Page
AInterrupting chamber 2
BUpper housing 3

Description and operation
Description of the interrupting chambers
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Interrupting chamber
Quenching medium The quenching medium is pressurized SF6gas or - in particular instances -
pressurized SF6+CF4gas mixture.
Interrupting principle The interrupting chamber is of thermal blasting type, using the energy from
the arc, with an auxiliary auto pneumatic effect.
Diagram
421
Description The interrupting chamber has been designed in such a way as to increase the
mechanical resistance of the working part and take advantage of the low wear
rate of the contacts subjected to the arc in SF6. The working part is enclosed
in a leak tight ceramic envelope, providing insulation between the circuit-
breaker input and output.
The chamber is made up of the following elements :
Mark Component Information
(1) Envelope Can have a long creepage
distance, depending on the
pollution level.
(2) Fixed contact
(4) Moving contact It is worked by the operating
mechanism and contains the
blasting device.

Description and operation
Description of the interrupting chambers
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Upper housing
Description The upper housing encloses the movement transfer mechanism (15) from the
operating tie- rod (8) to the moving contact (4) of the two chambers.
Diagram
15
8
4
4
Parts table The table below gives the housing internal and peripheral components :
Mark Component Function
(4) Moving contact It is worked by the operating
mechanism and contains the blasting
device.
(8) Operating tie- rod Transmits the movement to the moving
contact of the two chambers.
(15) Mechanism Transfer of the movement.

Description and operation
Description of the interrupting chambers
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