ML20127B427
| ML20127B427 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 01/19/1990 |
| From: | PENNSYLVANIA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20126M903 | List: |
| References | |
| FOIA-92-212 MT-GE-008, MT-GE-8, NUDOCS 9301120273 | |
| Download: ML20127B427 (17) | |
Text
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6c*k PROCEDURE COVER SHEET e
M f,6 t^ l l & ~, ( ( "c g,c ( L h W*
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V gu PENNSYLVANIA POWER & LIGHT CO.
SUSQUEHANNA STEAM ELECTRIC STATION MT-GE-008 480 VOLT AND UNDER CIRCUIT BREAKER Revision 8 HIGH CURRENT TESTING Page I of 17
/
/ 9 !90 EFFECTIVE DATE PERIODIC REVIEW FREQUENCY AND EXPIRATION DATE (check one):
( _ ) Procedure exempt from periodic review.
Procedure will not expire.
(f)
Periodic Review Frequency is:
2vus
/!/ 9 [9J Expiration Date:
Revised Expiration Dates:
PROCEDURE TYPE (check one):
( _ ) PORC f)NON-PORC REVIEW TYPE (check one):.
(_) Expedite $Aevier, PORC Review not qb$d.-
ew.
PORC Review not required.
(f)Al
(
w.
PORC Meeting No.
A R
Prepared by
& W.
Oate n 2 9
/!/G!90-Reviewed by 44-Date R
upervisor
/ '
Ifl4 96 J t _A%d Date Recommended it SecE1on
/Pa
,/,! 4)
Approved by
. /'//
A5 e
Date 3,
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FORM AD-QA-101-1, Rev. 5, Page 1 of 1 15515513EB35-4 ^, r) p t1T-GE-000 15855555E LEMMlfitlit hp e
enn 930112o273 920731 um av i
4 MT-GE-008 Revision 8 P, age 2 of 17 PROCEDURE REVISION SUMKARY TITLE:
480 VOLT AND UNDER CURRENT BREAKER HIGH CURRENT TESTING AddedSection5.4.2.atocheckproperoperationofAuxiliarySwitch(es) per NQA Sury. #89-040 OBS./ REC No. 03, 5/13/89 V.
Revised Data Forms MT-GE-008-1, 2 to include recording Fo M e Print Numbers per NQA Surveillance #89-040 Observation / Recommendation No. 04, 5/25/89 Added units to Data Forms MT-GE-008-1, 2, 3 Added Data Form MT-GE-008-4 (per PIF_ #88-0_61, 0.I.T. #L88148) to provide a Termination Documentation ~5heet.
Added Section 5.4.2.b to independently test each trip function of the breaker.
Ref: o PLI-15086, File 842-4, Sept. 30, 1981 o
IE Circular 81-12, July 22,1981 o
PLIS,-1691, File 842-4, Nov. 9, 1981 4
..__._[._
MT-GE-008 Revision 8 P, age 3 of 17 TABLE OF CONTENTS SECTION PAGE 1.0 PURPOSE 4
2.0 REFERENCES
4 3.0 PREREQUISITES 4
4.0 PRECAUTIONS 4
5.0 PROCEDURE 4
5.1 0-eaker Setup 5
5.2 Molded Case Circuit Breakers - Magnetic Trip 5
5.3 Molded Case Circuit Breakers - Thermal Trip 6
5.4 Molded Case Circuit Breakers - Mechanical and 6
Electrical Checks 5.5 Motor Overload Relays 7
5.6 Ground Relay 7
5.7 Breaker Restoration 7
5.8 Operability Check 7
6.0 ACCEPTANCE CRITERIA 7
ATTACHMENTS ATTACHMENT PAGE A
Test Record - A.C. Molded Case Breakers 9
B Test Record - D.C. Molded Case Breakers 11 C
Test Record - Lighting Circuit Breakers-13 0
Procedural Steps - Termination Verification 15 E
Detail of Breaker Terminal Assembly 16 F
Top &, Front View of Trip & Reset Mechanism
'17-
.s
MT GE-008 i
Revision 8 Page 4 of 17 1.0 PURPOSE This procedure specifically addresses High Current Testing of Molded Case (1) AC Circuit Breakers, Overloads and Relays (2) DC Circuit Breakers and Overloads (3) Lighting Circuit Breakers and (4) Ground Relays; on equipment rated 480 Volts and below.
2.0 REFERENCES
2.1 Multi-Amp, Model MS-1A, Instruction Manual.
2.2 Multi-Amp, Model CB 14X, Instruction Manual.
2.3 Multi-Amp, Model CB 7725, Instruction Manual.
2.4 Manufacturer's literature applicable to the particular Breaker or Motor Overload Relay being tested.
2.5 Manufacturer's Time / Current curves (Foreign File Controlled Prints).
2.6 Breaker setpoint data sheets (R.S.C.N.'s or other setpoints, e.g. Tech.
Specs. or per AD-QA-402).
2.7 Surveillance Procedure SM-106-000. ~~'
2.8 Technical Specifications Section 3/4.8.3.
9 3.0 PREREQUISITES
~
Operations has released equipment for' testing.
4.0 PRECAUTIONS None 5.0 PROCEDURE NOTE (1): Main contacts of device shall be electrically monitored for position indication.
NOTE (2): Those steps of this procedure designated by an asterisk (*)
it?ediately to the left of the Step number require entries to be recorded on the Data Form.
4 w
e w
Y l-l' MT-GE-008 g
4
.,r Revision 8 5
page 5 of 17 yc.
5.1 Breaker Setup 5.1.1 Remo.ve breaker;from cubicle.
5.1.2 Document and determinate breaker leads (on Form MT-GE-008-4) prior to connecting breaker to test: set (not required if performing SM-106-0XX.or SM-206-_0XX procedures).
=
5.1.3 Verify breaker " terminal mounting screws" are securely tightened (Reference Attachment' E).
'l 5.2 Molded case circuit breakers - Magnetic Trip.
5.2.1 Determine and record "As Found" minimum trip current for each
~
individual breaker pole.
N, 4E NOTE:
Allow sufficient time between successive tests on each breaker pole to. allow for breaker internal-y 5.2.2 Adjustable Breakers:
_d>[.g,;
cooldown.
L.
- ts :
.':.y T"
s, N a.
External Adjustment R
c> -
,I Adjust breaker, if necessary, to bring trip-point within h
M' _ ' s tolerance of value specified in setting da'ta and retest fll N breaker.
[S\\.
l r
Internal Adjustment (if required)
( / (1)buse a soldering gun'or pencil to heat-and unlock-
+[
breaker internal adjustment screws.
I
~
k.
(2) Use Loc-Tite " stud-lock" #73-71 or equivalent on k 4
breaker internal adjustment screws:af r final-
- $ y e adjustment.
1,y
-Record 3 eft" minimum trip curren J
c.
p
- vJ r
5.2.3 Determine and Record Lef t" triol operating) time of breaker at > 120% of set nt~valg -Record actgal-test current appTied.
L.
r
/
NOTE:
This value shall-be _ 150% o set point value for 6-0XX or SM-206-0XX.
breakers,specified in a.
If trip time " instantaneous" <.05 seconds then the magnetic setting-is' complete I < N l
L N
MT-GE-008-
+
Revision 8 8
Page-6.: of 17 Q
t;c.
. r.
y1
-qs f '
b.
Trip time not " instantaneous" >.05 seconds.-
-il
( fc NOTE:
If performing SM-106-0XX or SM-206-0XX, Section 5.2.3.b of.this procedure does not-apply.
1)
Determine and record acceptance trip curve time at (i
the test current value from the manufacturer's breaker curve.
NOTE:
This value must be compared to the operate
~
time of an interpolated curve in the range for the specific breaker.
2)
Determine and record if above-"As Left" trip time
-vtrsus curve time meet acceptance criteria. Adjust or replace breaker as necessary.
5.3 Molded case circuit breakers - Thermal Trip; i
Determine and record operating time of each individual breaker pole at
('
3 times (3X) the circuit breaker rating.
(*
NOTE:
Allow sufficient time between successive tests on each
(
breaker pole to allow thermal element to cool.
l 5.4 Molded case circuit breaker - mechanical and electrical checks:
i 5.4.1 Mechanical - Verify breaker can be mechanically tripped and reset.
NOTE:
Reset difficulties (if any) may be due to reset lever mechanical problems, e.g. reset lever having bent' edge (Reference Attachment F).
1 5.4.2-Electrical - (Perform steps if applicable):
a.
Insure proper operation of' Auxiliary Switch (es),
b.
Independently test each ' trip function. To insure proper breaker operation, check breaker position after..each trip function is tested.(Ref. Note '(1) Section 5.0).
(
e.g. -(1)Mder Voltage, Trip Device (2) *1Tnder Voltage' Release (UVR) Coil a (3) 1 hunt Trip Device i
- l
x MT-GE-008 Revision 8 Page 7 of 17 5.5 Motor overload relays:
f Oetermine and record operating time of each individual relay pole at 3-times (3X) the heater current value.
5.6 Ground relay 5.6.1 Determine and record ground relay pickup current.
5.6.2 Adjust ground relay potentiometer, if necessary, to bring trip point within tolerance of value specified in setting data and retest breaker.
NOTE:
Main contacts of breaks do not carry nor interrupt current source. Test current source must therefore be manually removed from circuit.
5.7 Breaker restoration 5.7.1 Reterminate breaker leads to breaker as per documentation on Form MT-GE-008-4 (not required if performing SM-106-0XX or SM-206-0XX).
5.7.2 Reinstall breaker in cubicle (not required if performing SM-106-0XX or SM-206-0XX).
perapility4he Verify breaker and associated circu'itry are correct by performing equipment operability check (i.e., verify valve strokes, equipment and/or motor rotates in proper direction) (not required if performing (M-106-0XX or SM-206-0XX).
6.0 ACCEPTAN'C Tm Required Setting Preferred Setting
6.1 Magnetic
(5.2.2) Actual trip current: 25% of specified value +25%, -0% of specified value (5.2.3) Actual trip time:
<0.05. seconds
+0.%, -25% of mfg within curve value or
!25% of mfg curve value
6.2 Thermal
Operating Time
!15% of specified value +15%,-0% of specified value
MT-GE-008 Revision 8 Page 8 of 17 6.3 Motor Overload:
Operating Time 215% of specified value +15%,-0% of specified value
6.4 Ground
Pickup Current 215% of specified value +15%,-0% of specified value.
6.5 Operability Check Satisfactory k
9 4
9 a
t 3s.
s
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Attachment A MT-GE-008 Revision 8 TEST RECORD Page 9 of 17 A.C. MOLOFD CASE BJtEAKERS, MOTOR OVERLOADS AND GROUND RELAYS Syst.#
W.A #
EM#
0( ), non 0 ( )
Breaker #
MFG.
Type F.F. Print #
Curve #
Curve Date Break Rating (amps.); Magnetic Set Point (amps.)
Adjustable (from)
(amps.)
(to)
(amps.)
Overload:
No.
Setting Rating (from)
(amps.)
(to)
(amps.)
Test amps Ground relay: Setting (amps.)
"AS FOUNO" "AS LEFT" 5.2 MAGNETIC (5.2.1)
(5.2.2.c)
(5.2.3)
PHASE MIN TRIP MIN. TRIP TRIP TEST TRIP OPER CURR. (AMPS)
CURR. (AMPS)
CURR. (AMPS) TIME (SEC)
A B
C "AS LEFT"
~5.2 MAGNETIC (5.2.3.b.(1))
(5.2.3.b(2))
PHASE TRIP CURVE ACCEPT.
TIME (SEC)
CRITERIA MET 7 A
B C
FORM MT-GE-008-1, Rev. 6, Page 1 of 2 (File R7-1)
Attachment A MT-GE-008-Revision 8 TEST RECORD Page 10 of 17 A.C. MOLDED CASE BREAKERS, MOTOR OVERLOADS AND GROUND RELAYS SYST#
BREAKER #
WA#
S.3 THERMAL PHASE TEST CURRENT AS FOUND DATA AS-LEFT DATA A
amps
- sec, sec.
B amps sec.
sec.
C amps sec.
sec.
S.4 1 Mechanical Check Satisfactory: YES ( ) NO ( ),
N/A ( )
5.4.2 Electrical Check Satisfactory: YES ( ) NO ( ), N/A ( )
5.5 OVERLOADS PHASE TEST CURRENT AS FOUND DATA AS LEFT DATA A
amps sec.
sec.
B amps sec.
sec.
O amps sec.
sec 610UND PHASE TEST CURRENT AS FOUND DATA AS LEFT DATA ~
N amps amps amps TEST INSTRUMENT I.D. #
CAllBRATION OUE DATE 5.8 Operability Check Satisfactory. YES (
)
NO (
)
Date Performed by:
, Date:
Reviewed by:
, Date:
acceptable:
(yes/no)
Comments:
FORM MT-GE-008-1, Rev. 6, Page 2 of 2 (File R7-1)
- - _ _ _ _ _ _ _ - - _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ - _ - _ _ _ _ _ - - _ _ - _ - _ _ - _ - _ - _ _ _ _ - - _ _ _ - - _ _ - _ - _ - _ - _ _ ~
Attachment B MT-GE-008 Revision 8 TEST RECORD P' age 11 of 17 D.C. MOLDED CASE BREAKERS, MOTOR OVERLOADS O( ), non 0 ( )
Syst.# _
W.A.#
EM#
Breaker #
MFG.
Type F.F. Print #
Curve #
Curve Date Breaker: Rating (amps);
Magnetic Set Point (amps.)
Adjustable (from)
(amps.)
(to)
(amps.)
Overload:
No.
Setting Rating (from)
,__(amps.)
(to)
(amps.)
Test amps a
"AS FOUND" "AS LEFT" 5.2 MAGNETIC (5.2.1)
(5.2.2.c)
(5.2.3)
PHASE MlH TRfF MIN. TRIP TRIP TEST TRIP OPER CURR. (%MPSL CURR. (AMPE)
CURR.(AMRS) TIME (SEC)-
A B
"AS LEFT" 5.2 MAGNETIC
( 5. 2. 3.b. (1))
(5.2.3.b(2))
PHASE TRIP CURVE ACCEPT.
TIME (SEC)
CRITERIA MET?
A B
C FORM MT-GE-008-2, Rev. 6, Page 1 of 2 (File R7-1)
Attachment B MT-GE-008 Revision 8 TEST RECORD P' age 12 of 17 0.C. MOLDED CASE BREAKERS, MOTOR OVERLOADS SYST#
BREAKER #
WA#
5.3 THERHAL PHASE TEST CURRENT AS FOUND DATA AS LEFT DATA POS amps
- sec, sec.
NEG amps sec.
sec.
5.4.1 Mechanical Check Satisfactory: YES ( ) NO ( ),
N/A ( )
}
5.4.2 Electrical Check Satisfactory: YES ( ) NO ( ), N/A ( )
5.5 OVERLOADS PHASE TEST CURRENT AS FOUNO DATA AS LEFT DATA POS amps sec.
sec.
NEG amps sec.
sec.
TEST INSTRUMENT 1.0. #
CALIBRATION OUE DATE 5.8 Operability Check Satisfactory. YES (
)
NO (
)
Oate Performed by:
, Date:
Reviewed by:
, Date:
acceptable:
(yes/no)
Comments:
FORM MT-GE-008-2, Rev. 6, Page 2 of 2 (File R7-1)
Attachment C MT-GE-008-Revision 8 TEST RECORD Page 13 of 17 LIGHTING CIRCUIT BREAKERS Syst.#
W.A.#
EM#
Q( ), non 0 ( )
Breaker #
MFG.
Type Lighting / Power panel #
Location CKT#
Serial #
Voltage F.F. Print #
Curve #
Curve Date Breaker:
Rating (amps)
"AS FOUND" "AS LEFT" 5.2 MAGNETIC (5.2.1)
(5.2.2.c)
(5.2.3)
PHASE MIN TRIP MIN. TRIP TRIP-TEST TRIP OPER CURR. (AMPS)
CURR. (AMPS)
CURR. (AMPS) TIME (SEC)
A B
C "As LEFT" 5.2 MAGNETIC (5.2.3.b.(1))
(5.2.3.b(2))
PHASE TRIP CURVE ACCEPT.
TIME (SEC)
CRITERIA MET ?
A B
C 5.3 THERMAL PHASE TEST CURRENT AS FOUND DATA AS LEFT DA'A A
amps sec.
sec.
B amps sec.
sec.
C amps sec.
sec.
FORM MT-GE-008-3, Rev. 5, Page 1 of 2 (File R7-1)
4 Attachment C MT-GE-008 Revision 8 TEST RECORD P' age 14fof 17 LIGHTING CIRCUIT BREAKERS j
TEST INSTRUMENT I.D.#
CAllBRATION 00E DATE
-l
'T Performed by: _
, Date:
Reviewed by:
, Date:
, acceptable (yes/no) d FORM MT-GE-008-3, Rev. 5, Page 2 of 2 (File R7-1)
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Attachment E
' MT-GE-008 Revision 8' Page.16 of 17---
DETAIL OF BREAKER TERMINAL ASSEMBLY TERMINAL CAPTIVE SCREW i
t / TERMINAL Lmi
'_M) Asts TERMINATION
, MTERMINAL MOUNTING SCREW l I jl f oCxwAsHEn t
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APPER BUS SAR
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-.MMMINAL MOUNTING NUT D
4 4
F e
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i Page 1 of 1 G
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Attachment F
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MT-GE-008.-
Rey!sion 8-
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yoyg73d*7 p Page 17 of 17 N
7AttET WQVING TRIP LEVSA
- LEVER
- s we. CONTACT x'
88887 ARMAfums SPMWG m
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masti mass 7 LATCM d 2
Lavam mycT.
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h s
EA8I0'-
HAMOLS
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1 WOUNTING TAS asNT EDGE OF I" #88 Mast? Lavan
'(example)
NonMAL missT Ltytm EDGE Top View of Trip and Reset Mechanism HANOLE woVNTNG TAG 88887 mm semmG
- Two, q
LIV 88 _ _...._._ _
w g ~ ~^
MOUNT!NG TAS MGSET LATCH eiMT teos of asssTLavsR (examping h
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massT Lavam
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Front View of Trip and Reset Mechanism Page 1 of 1 t
-