1HSM 9543 21-03en Live Tank Circuit Breakers Routine Testing Ed3

8/11/2019 1HSM 9543 21-03en Live Tank Circuit Breakers Routine Testing Ed3

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Live Tank Circuit BreakersRoutine testing


http://slidepdf.com/reader/full/1hsm-9543-21-03en-live-tank-circuit-breakers-routine-testing-ed3 2/82 | ABB Live tank circuit breaker routine testing

Routine testsLive tank circuit breakers


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All circuit breakers are tested

ABB has a we ll established process to ensure on-t ime delivery

of circuit breakers to its customers with the highest level of

quality and reliability. At the live tank circuit breaker produc-

tion facility in Ludvika, over 3000 circuit breakers are manu-

factured and routine tested annually.

The routine tests are performed for the purpose of ensur-

ing the quality and guaranteed performance of the material,

design and assembly of the circuit breaker and are made

on each apparatus manufactured. We welcome customer

witnessing of these tests. The routine tests are part of theprocess of producing the circuit breakers and are always per-

formed with the same test procedures, irrespective whether or

not the tests are witnessed by the client’s representative.

Performance of routine tests

The main steps of the order process related to routine test ing

are described in the example timeline shown below. The exact

timing of these steps may vary depending on the size and

complexity of the order.

An invi tat ion to witness routine testing is part of the order

acknowledgement, when planned dates for routine testing

and shipping are given. Confirmation is sent to the customer

normally six weeks before the planned routine test dates.

When the final dates have been advised, participation of anyinspector(s) shall be confirmed by the customer at least three

weeks before the planned dates for routine tests.

Any requests for spec ial or additional test procedures shall

always be advised well in advance, preferably with order

placement, but at the latest with the confirmation of witness-

ing participation.

It must be noted that any requested changes to the test

process or the planned date for routine testing will affect the

delivery time.

After each routine test , a test review meet ing is held together

with the client's witness in order to summarize the tests,

documentations and for resolving any questions which may

have arisen during tests.

For each circuit breaker a complete routine test report,

approved and certified by an ABB test supervisor, is issued

and distributed to the customer as part of the order

documentation.

Week Act iv it ies

1 Order rece ived from customer

2 Order acknowledgement sent by ABB with preliminary date for routine testing

Order design work complete. Drawings sent for customer approval. After customer design approval, materials

purchased for circuit breaker

X-7 ABB confi rms date for routine tests and requests confirmation of customer intent ion to witness testi ng

X-4 Customer confirms intention to witness or not

X-2 Circu it breaker assembly work

X-1 Routine testing done

X Circu it breaker packed and shipped ex-works

Delivery time = "X" weeks, ex-works



Production process

4 | ABB Live tank circuit breaker routine testing

Goods receiving

Materials and components for circuit breaker assembly are

inspected on arrival and before use for compliance to ABB

requirements. Many items are also routine tested in advanceby the suppliers in accordance with ABB instructions, the

documentation for which can be shown on request.

Breaker pole, Mechanical and Electrical assembling

Tests are also conducted on major modules of the circuit

breaker during the factory assembly process, prior to the

final routine testing of the complete circuit breaker poles and

operating mechanism(s).

Any non-compliant components are c lear ly marked and

isolated from production for further analysis.

Routine test

The fina l routine test process is described further on pages 6

and 7.

Packing

After completion of routine testing the circuit breaker is disas-

sembled into its shipping modules for packing.

Delivery to customer

After packing the circuit breaker is sh ipped to the customer

according to agreed order requirements.



Goods recieving

Operating

mechanism

Mechanism assembly

Operating

mechanism

Electrical assembly

Breaker pole

assembly

Routine test PackingDelivery to

customer

Manufacturing

Interrupters



Routine test process

6 | ABB Live tank circuit breaker routine testing

Summary of routine tests IEC ANSI/IEEE ABB

Nameplate and design check X X X

Resistance measurement

(Components in auxiliary and control circuits)

X X X

Function check of auxiliary and control circuits X X X

Mechanical operating test X X X

Resistance measurement (Main circuit) X X X

Dielectric test (Auxiliary and control circuits) N/A X X

Dielectric test (Main circuit) X X X

Tightness test X X X

Delivery time = "X" weeks, ex-works

Meeting the standards

Routine testing of ABB circuit breakers is a tightly controlled

part of our quality production process. All testing follows the

protocols strictly, and is highly automated to ensure accuracy

of the applied test levels and result measurements, in

accordance with international standards.

The main routine test steps with respect to IEC, ANSI and ABB

standards are summarized in the table on this page. A more

detailed description of these steps can be provided on request.



Minutes Activities completed

0 Start of routine test

10 Nameplate and design check

40 Function check of auxil iary and control circuits

60 Operating mechanism adjustment tests90 Mechanical operating test

100 Motor and closing spring charging tests

115 Resistance measurement (Main circuit )

125 Dielectric test (Auxil iary and control circuits)

155 Overpressure test, t ightness test

175 Die lectric test (Main ci rcui t)

180 Transfer to packing department

The entire process is normally completed within approximately 3 hours per three pole operated breaker.

The routine test report i s automatically generated from the computerized test sys tem and can be reviewed in full by the customer witness shortly after test completion.

Workflow To ensure t imely production f low and maintain on-time deliv-

ery commitments for all customers, the routine test process

is planned to follow a strict time schedule. The timing of the

routine test process for a three-pole operated breaker (or one

phase of a single pole operated breaker) is summarized in the

timeline on this page.

The entire routine test for each circuit breaker is documented

in a detailed routine test report, generated by the computer-

ized testing system. After verification by the ABB certified test

supervisor, this report is provided to the customer as part of

the order documentation.



P u b l i c a t i o n L i v e t a n k c i r c u i t b r e a k e r r o u t i n e t e s t i n g 1 H S M

9 5 4 3 2 1 - 0 3 e n ,

E d i t i o n 3 ,

2 0

1 3 - 1 0 ,

H i g h V o l t a g e P r o d u c t s ,

P h o t o : H a s s e E r i k s s o n .

ABB AB

High Voltage Products

SE-771 80 Ludvika, Sweden

Phone: +46(0)240-78 20 00

Fax: +46(0)240-78 36 50

www.abb.com/highvoltage

©Copyright 2013 ABB

All r ights reserved

NOTE! ABB AB is working continuously

to improve the products. We therefore re-

serve the right to change designs, dimen-

sions and data without prior notice.

Contact us

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1HSM 9543 21-03en Live Tank Circuit Breakers Routine Testing Ed3