188289833-test-p545

SITE INSPECTION AND TEST RECORDDescription:

DISTANCE &DIFF RELAY MICOM P545

CONTRACT no.: Record no. :

Customer:AL GIHAZ

End Client:SEC-WOA

Sheet: of 15

Site:ISKAN S/S 380 KV /110 KV

Panel / Designation / Location no.:R08.1

Project no.:

1. RELAY CHARACTERISTICS

Type No.: P545 Designation : 87L/21/67N /79

Model No :P545311A3M0510K

Nominal Current : 1/5 A

Serial Number 30068149 Nominal Voltage :Vn 100- 120 VAC – 50/60 HZ

Firmware Version : Aux. Volts : Vx110-250 VDC 100-240

VAC

2.1 CT & VT DATA

CT rated primary current set as 1200 A

CT rated secondary current set as 1.0A

Ignd-CT rated primary current set as 1200 A

Ignd-CT rated secondary current set as 1.0A

Rated primary voltage (L-L) set as 110 KV

Rated secondary voltage (L-L) set as 100 V

3. PRELIMINARY CHECKS

Relay damaged?

Rating information correct for installation?

Case earth installed?

External wiring checked against diagram?

Test block connections checked?

LCD front panel display

Clock set to local time?

Tested by:Name : Eng. Mohamed Shokry

Witnessed by: SEC-WOA-CONSULTANTName : ENG/ MAHMOUD HAMDI

Witnessed by: SEC-WOA-CSDName : ENG/GAMAL HAMMAM

Signature & Date : Signature & Date Signature & Date :




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4. GENERAL CHECKS

Checking Results

Dry cell battery voltage (Remove battery isolation strip)

Auxiliary voltage value on terminals M2 ( + ) and M1 ( - )

Measured FIELD SUPPLY Voltage M7 – M9 and M8 – M10

Watchdog contact when relay OFF

Terminals M11 and M12 Closed

Terminals M13 and M14 Open

Watchdog contactwhen relay ON

Terminals M11 and M12 Open

Terminals M13 and M14 Closed

Check if the frequency is set on required value

Clock set-up, remove auxiliary supply for 30 seconds check date & time

Trip relay LED operation check

Alarm relay LED operation check

Out of service relay LED operation check

Healthy relay LED operation check

5. DISPLAY READINGS

Circuit Injected value Phases Expected valueDisplayed value

PRIMARY SECANDRY

VOLTAGE

57.73

VAN 63.51 KV

VBN 63.51 KV

VCN 63.51 KV

VAB 110 KV

VBC 110 KV

VCA 110 KV

CURRENT 1.0 A IA 1200








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Phase A / 0°Phase B / -120°Phase C / 120°

IB 1200

IC 1200

IN 0

6. FUNCTIONAL TESTSCurrent differential bias characteristic (87-1)

Item Description Setting

1 IS1 0.20 A

2 Is2 2.0 A3 K1 30 %4 K2 150 %5 T 0 Sec

Pick-up & Time test:-*NOTE:.

The Relay will be tested at loopback internal modeIt should be noted that the minimum operating current is related, but not equal to, the Is1 SETTINGConsider a single end fed fault with no load but fault current, I:-|Idiff| = I|Ibias| = ½IAssuming |Ibias| < Is2, then, using the equations from section 2.1(from manual), the relay will operate if:-|Idiff| > k1.| Ibias| + Is1 orI > k1.½I + Is1 orI> Is1 / (1 - 0.5 k1)The minimum operating current is therefore a function of the Is1 and k1 settings. Since k1 isRecommended to be set to 30%, the minimum operating current will be:-Imin = 1.176 1s1

I Diff I > ( k1 * I I Bias I + Is1 )/2 = 0.118 A

Fault Type

Expected PickupIn Amp

Actual PickupIn Amp

Drop-offIn Amp

Expected Trip Time

in m-sec

Actual Trip Timein m-sec at

2 x I Pickup

A-N 0.118 A 0.12 0.087 <40 ms 29.5 ms

B-N 0.118 A 0.119 0.088 <40 ms 26.3 msC-N 0.118 A 0.119 0.088 <40 ms 28.7 ms

Lower slope test (Injected current < Is2)








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|Ιdiff| > ( k1.| Ιbias| + Ιs1)/2 = 0.25 A

Bias current injected in

phase (Amps)

Differential current injected

in phase

Expected differential current for

tripping(Amp)

Measured value of diff. current

(Amp)

Expected Trip Time

in m-sec

Actual Trip Timein m-sec at 2 x I Pickup

A B C A B C1.0 X 0.25 A <40 ms

1.0 X 0.25 A <40 ms1.0 X 0.25 A <40 ms

Upper slope test (Injected current > Is2)

|Ιdiff| > (k2.| Ιbias| - (k2 - k1). Ιs2 + Ιs1)/2=1.15A

Bias current injected in

phase (Amps)

Differential current injected

in phase

Expected differential current for

tripping(Amp)

Measured value of diff. current

(Amp)

Expected Trip Time

in m-sec

Actual Trip Time

in m-sec at 2 x I Pickup

A B C A B C3.0 X 1.15 A 1.155 <40 ms 30.7

3.0 X 1.15 A 1.155 <40 ms 32.83.0 X 1.15 A 1.156 <40 ms 33.5

7-Distance protection (21-1) – Attachments-

Resistive Zone Reach check (quadrilateral characteristics only

Item Description Checked

1 Print out from FREJA attachedOk

Impedance tolerance: +/- 5% for zone 1 and +/- 10 % for other zones. PH-E (G): - Resistive reach: Rn (Ω/Loop) = RGn (Ω)/ (1+Kz).

- Reactive reach: Xn (Ω/Loop) = Zn (Ω) * sin (ΦLG) - Compensation factor KZ = 1/3((Zo-Z1)/Z1). - Line impedance ZLG = RLG+J XLG = 1/3(2*ZLph +ZOL)

PH-PH (PH): - Resistive reach: Rphn (Ω/ph) = Rphn (Ω/Loop) / 2.








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- Reactive reach: Xn (Ω) = Zn (Ω) * sin (ΦLph). - Line impedance ZLph = RLph+J XLph.

6. Distance OPERATING TIME TESTING:

Item Description Checked

1 Print out from FREJA attachedOk

6.2.3 Distance protection scheme testing

Setting: Aid Dist delay = 0.0 m sec

I. Permissive Under Reach Scheme:Send logic: CS = ZM1 : 29 m sec

Trip logic: Trip = ZM2 + CR : 14 m secTrip logic: Trip = ZM2 w/o CR : 414 m sec

II. Permissive Over Reach Scheme:Send logic: CS = ZM2 : 14 m sec

Trip logic: Trip = ZM2 + CR : 29 m secTrip logic: Trip = ZM2 w/o CR: : 427 m sec

III. Current Reversal Logic Check (Permissive Over Reach Scheme):

Apply a reverse / forward fault to check: t rev guard:

Fault type t rev guard setting (m sec) t rev guard measured (m sec)Reverse/ forward

150 162.1

IV. Weak End Infeed Echo (Permissive over reach Scheme):

Apply a short pulse to DIST Channel Receive Input Without any fault Injection and check Channel send is given: [ Ok ]








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Operating time 26.7 m sec

V. Weak End Infeed Trip (Permissive over reach Scheme):

Setting WI V< V thresh = 45 VWI trip delay = 60 m sec

phaseU ph setting

(V)U ph measured

(V)Remark

R45

45.07 OKS 45.05 OKT 45.04 OK

Start at ph voltage more than setting value and go down gradually and apply send signal each time and check at which value will come ECHO trip

Measured WI Trip time = 73.4 m sec

VI. Blocking 1 Scheme:Send logic: CS = ZM4 : 36 m sec

Trip logic: Trip = ZM2 w/o CR : 21 m secTrip logic: Trip = ZM2 with CR : 427 m sec

6.4 Distance protection Power Swing Blocking - PSB

Blocked zone for Power Swing Blocking Z1-Z2-Z3 =OK

Power swing blocking delay timeSet Measured

0.5 Sec. 0.55 Sec

6.4 Distance protection Switch On To Fault - SOFT 1-SOTF BY C.B CLOSING BI:- SETTING:- Zone concerned by sotf: Z1,Z2 Sotf pulse time set=500 ms Check sotf work with concerned zone (OK) Check sotf trip time at fault at Z1= 21 ms Z2= 28 ms Sotf pulse time measured = 498 ms








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Configure BI. (set SOTF) DDB# 488 as CB manual close command to check first state To measure SOTF pulse time configure BO as SOTF ACTIVE and use it as dual contact

2- SOTF BY DEAD POLE DETECTED :-

SOTF DELAY TIME SETTING = 1.0 SEC

SOTF DELAY TIME MEASURED = 1.04 SEC

Inject first page normal current and voltage. 2nd page inject zero current zero voltage and stop freja by contact (SOTF ACTIVE) the time till freja stop by contact will be the delay time

SOTF BY DEAD POLE DETECTED TRIP TIME = 14.9 ms

Inject direct at page two any fault at zone concerned by SOTF stop injection by SOTF trip contact

NOTE: When the line is healthy once it become dead so SOTF will be activated after this delay time while the line still dead The line identifications for line dead is setting at CB FAIL SETTING I< =80 m

6.4 VTS FUNCTION TEST: 6.2.5.2 Loss of one or two phases test:

Fixed setting V2=10V -Apply 3 Phase rated voltage (Ur V) with balanced angles.-Apply 3 Phase rated current (Ir A) with balanced angles.-for the phase under test start decrease the voltage on one phase and / or two phases till you get Internal fuse fail (fuse fail without time lag). - For time test inject voltage more than V2.and stop freja BO. VTF alarm

Fixed setting: V2 = 10 volt, I2> inhibit less than setting.=100 mA

Phase Pick up Drop OffSet Time

(sec)

Measured Time

(Sec)

One phase 10.01 9.471.0

1.013

Two phase 10.00 9.50 1.012

- CHECK THE FUSE FAIL BLOCKING BY I2> inhibit (simulate 3 phase voltage to get fuse Fail, for I2> Apply 3 Phase equal current (Ir A) with balanced angles and increase one phase to get I2 more than the setting Value it will inhibit fuse fail then decrease again phase till you get fuse fail - [I2> inhibit measured > = 99.59 mA].








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-Check the relay trip unblocking during the internal fuse fail by any fault [ OK ]. Simulate 2 stages: - stage 1; inject 3 phase voltage to get fuse fail and zero current. - stage 2; inject the same voltage as in stage 1, inject 3 phase current

to get a value grater than I2> inhibit.6.2.5.2 Loss of all 3 phase voltages under load condition test(detect 3p):Fixed Setting: a- for fuse fail pick up; V1=10 volts.

b- for fuse fail reset; V1=30 volts.

Pick up measurement voltage(v)

Reset measurement voltage(v)

10.03 30.05

8.1.2.4 Check the blocking of the relay when the general block functions (VT MCB TRIP) is activated [ ]

7. Fault Locator Function: Line Length: 80.0 Km Line impedance: 18.6 Ω ФL: 79 degree.

Fault Type Fault Impedance Z (Ω)Expected display

(KM)Actual display (KM)

A-N(25)% 4.65 20 19.75A-B(50)% 9.3 40 40.59

A-B-C(100)% 18.6 80 81.16 *WE INJECT Z WITH LINE ANGLE Event and Disturbance recorder check [ OK ]

6.2 Directional earth fault protection - DEF (67N-1)

DEF status : ENABLE DEF polarizing : ZERO SEQUENCE

DEF VNpol set : 3 V

DEF Char angle : -60° DEF threshold : 100 mA

8.1 Pick up current 3Io:

Phases

Pick-up current Drop-off current

ExpectedSet ±5%

MeasuredExpected95% set

±5%Measured

A 100mA 103.44 95mA 96








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B 100mA 102 95mA 99

C 100mA 103.95 95mA 98

-Apply 3 phase volts of rated value (57.73 volt) with balanced angles.-for the phase under test start reducing voltage till you get Vn more thane vpolarizingApply 3 phase current with balanced angles for the phase under test start increasing current till you get pick-up; then decrease again till you get reset.

8.2 Directional Test (FW)

AnglePick-up Drop-off

ExpectedSet ±2°

MeasuredExpectedHyst. < 3°

Measured

60° 150 149.9 330 329.6

We will inject and change the voltage angle not current angle so the angle will be as added 180

8.3 POLARIZING VOLTAGE (3V0) PICKUP AND DROP OFF TEST:

Vn(3V0) settingVn (3V0) measured

Pick up Drop off

3 V 3.009 2.958

NOTE: -Apply balanced current at 3 phase for phase under testing up slowly till get In more than 3Io setting -Apply 3 phase volts of rated value (57.73 volt) with balanced angles. -for the phase under test start reducing voltage till you get pick-up; then increase again till you get reset.

8.4 DEF Scheme check : Aid DEF delay = 90 m sec

III Scheme: permissive over reach SEND: DEF STFW : 29.6 m sec DEF AIDED TRIP : DEF STFW + CR: 120 m sec DEF AIDED TRIP : DEF STFW w/o CR 1.53 SEC (trip with EF element. no trip with aid -2)

II. Current Reversal Logic Check (Permissive Over Reach Scheme):

Apply a reverse / forward fault to check: t rev guard:

Fault type t rev guard setting (m sec) t rev guard measured (m sec)Reverse/ forward

150 263.9

THIS MEASURED VALUE INCLUDE DELAY TIME AND DEF PICK UP TIME








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III Weak End Infeed Echo (Permissive over reach Scheme):

Apply a short pulse to DEF Channel Receive Input Without any fault Injection and check Channel send is given: [ OK ]

Operating time 25.4 m sec

III Weak End Infeed Trip (Permissive over reach Scheme):

Setting WI V< V thresh = 45 VWI trip delay = 60 m sec

U ph setting(V)

U ph measured (V)

Remark

45 45.03 OK

Start at 3ph voltage more than setting value and go down gradually and apply send signal each time and check at which value will come ECHO/WI trip

Measured WI Trip time = 79.2 m sec

III Scheme: BLOCKING reach SEND: DEF STRV : 41.3 m sec DEF AIDED TRIP : DEF STFW W/O CR : 118.1 m sec DEF AIDED TRIP : DEF STFW + CR 1.53 sec (trip with EF element no trip with aid-2)

6. OVER CURRENT PROTECTION ( NON DIRECTIONAL ) :

PICK UP VALUE:PHASE SETTING PICK UP DROP OFF DT TIME

A

1 A.&1 sec1.001 0.951 1.02

B 1.00 0.950 1.02C 1.00 0.950 1.02

OPERATING TIME STAGE (1) (Is > 1 A)








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1)

System check:-

No Item descriptionSetting values

Measured values Remark

BB LINE1 Dead voltage 20 20.0 20.042 Live voltage 40. 40.01 40.063 Under voltage 43 43.04 42.974 Over voltage 70 70.04 69.975 U diff 6.5 6.58 6.566 CS1 angle 20 19.1 19.17 CS1 freq 50 mH 50 50

2) AUTO RECLOSER

No Item descriptionSetting values

Measured values

Remark

1 Dead time 1 3 Sec 3.1 First shot

2 CB READY 5 Sec 5.1





CURVECAL TIME

@

OPERATING TIMELIMIT(as per curve)

A B C

SI2 Times 10.02 10.02 10.02 10.03+/-5%5 Times 4.29 4.29 4.29 4.28+/-5%

VI2 Times 13.46 13.46 13.45 13.5+/-5%5 Times 3.38 3.38 3.38 3.375+/-5%

EI2 Times 26.53 26.53 26.51 26.67+/-5%5 Times 3.32 3.33 3.32 3.333+/-5%

LTI2 Times 119 119 119 120+/-5%5 Times 29.88 29.90 29.87 30+/-5%




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3 Reclaim time 30 Sec 30.1

4 A/R inhibit time 7 Sec 7.1

5 Check system time 2 Sec 2.08

Check that A/R block from Z2 , Z4 as we make in A/R setting [ OK ] Check that A/R NOT block from multi phase as we make in A/R setting [ OK ] Check that A/R WILL START FROM EXTERNAL BI AR START [ OK ] Check that A/R WILL BLOCK FROM EXTERNAL BI AR BLOCK [ OK ]

1-Dead time :- start timer protection trip and stop with close command (auto close) BO

2-CB HEALTY : When AR finish dead time before giving close command go to chick CB healthy BI if not come will wait this time to chick it .if come before time finish will make close. if not come it will make lock out after this time-A-first way start timer trip BO and stop AR LOCK OUT BO and remove CB HEALTHY BI(time=dead time + CB healthy time-B-other way when AR start shot it make blocking until finish shot. if condition CB HEALTHY not come at end of dead time it will remove blocking through this time and return blocking again after this time finish So to measure this time we can start timer by AR BLOCK BO NC and stop by AR BLOCK BO NO THIS WILL measure CB HEALTHY time only and accurate3-CHICK SYSTEM TIME:- it will be measured same ways as CB HEALTHY TIME unless we will remove CHECK SYSTEM BI and will activate syncrocheck with 1st shot 4-AR inhibit time:- this time coming after closing the C.B. through this time inhibit AR for this time. to measure it will make freja sequence first page will take freja BO to relay BI MANUAL CLOSE COMMAND will function it at relay (CLOSE CB) and but the time for page one as this inhibit time setting and stage two will make fault to start the AR and change stage one duration till get AR START so inhibit time will be the time of stage one at freja (CB.READY, SYNCROCHECK BI .must be available)5-RECLAIM TIME:-

At last shot When A/R start reclaim time it make A/R LOCK OUT OR still making blocking during reclaim time To measure it take BO close command (auto close) to start timer .and take BO A/R BLOCK NC to stop timer

8.LOGICAL INPUTS CHECK:-

Input Terminal Circuit Result








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BI-1 E1 − E2 OK

BI-2 E3 − E4 OK

BI-3 E5 − E6 OK

BI-4 E7 − E8 OK

BI-5 E9 – E10 OK

BI-6 E11 − E12 OK

BI-7 E13 − E14 OK

BI-8 E15 − E16 OK

BI-9 C1 − C2 OK

BI-10 C3 − C4 OK

BI-11 C5 − C6 OK

BI-12 C7 − C8 OK

BI-13 C9 – C10 OK

BI-14 C11 − C12 OK

BI-15 C13 − C14 OK

BI-16 C15 − C16 OK

BI-17 G1 − G2 OK

BI-18 G3 − G4 OK

BI-19 G5 − G6 OK

BI-20 G7 − G8 OK

BI-21 G9 – G10 OK

BI-22 G11 − G12 OK

BI-23 G13 − G14 OK

BI-24 G15 − G16 OK

9.OUTPUT RELAYS CHECKRelay Terminal Contact Circuit Result








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RL1 L1 – L2 NO OK

RL2 L3 – L4 NO OK

RL3 L5 – L6 NO OK

RL4 L7 – L8 NO OK

RL5 L9 – L10 NO OK

RL6 L11 – L12 NO OK

RL7 L13–L14–L15 C/O OK

RL8 L16–L17–L18 C/O OK

RL9 K1 – K2 NO OK

RL10 K3 – K4 NO OK





RL15 K13–K14–K15 C/O OK

RL16 K16–K17–K18 C/O OK

RL17 J1 – J2 NO OK






RL23 J13–J14–J15 C/O OK

RL24 J16–J17–J18 C/O OK

RL25 H1 – H2 NO OK






RL31 H13–H14–H15 C/O OK

RL32 H16–H17–H18 C/O OK








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188289833-test-p545

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