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Quy trình kiểm tra vận hành chạy thử hệ thống trung thế 11 Kv trong nhà máy nhiệt điện........................................................................................................................................................................................................................................................................................................
FOR COMMENT A Rev Owner 16-Jan-13 Date S.J Cho Prepared C.K Kim Checked Y.M Cho Approved For Comment Details of Revision AES-VCM MONG DUONG POWER COMPANY LIMITED Consultant POWER ENGINEERING CONSULTING JOINT STOCK COMPANY Contractor Doosan Heavy Industries & Construction Co., Ltd PC Project : T10206 MONG DUONG II x 560MW(NET) THERMAL POWER PLANT UAS DN02 UNIT P0 KKS Title COMMISSIONING PROCEDURE FOR 11KV MV SWITCHGEAR OF SITE TEST Document No BBG Reg No 840001 Rev A Pages –No T10206-DN02-P0BBG-840001 of 27 Rev A Table of Contents 1.0 GENERAL PURPOSE 2.0 INSPECTION AND TEST ITEM .7 2.1 Scope 2.2 Code and Standard 2.3 General test .7 2.4 Circuit Breaker test 2.5 Current Transformer test 2.6 Potential Transformer test .7 2.7 Protection Relay test .7 2.8 Meter & TD test .7 2.9 Di-electric Strength & Insulation Resistance test 2.10 Check for Phase Sequence(After energizing) 2.11 NSPB(Non-Segregated Phase Bus duct) .7 3.0 INSPECTION AND TEST METHODS 3.4 Potential Transformer test ; Confirm the following items 11 3.5 Protective Relay test ; Confirm the following items 12 3.10 Contact Resistance test for Breaker and Bus bar spouts.; 13 3.11 NSPB(Non-Segregated Phase Bus duct) 14 3.12 NSPB – Insulation Resistance Test ; Confirm The Following Items 14 3.13 NSPB – Di-Electric Strength Test .15 4.0 RESULT OF CHECK SHEETS .16 4.1 General test record .17 4.2 Circuit Breaker Test Record 18 4.10 NSPB - Bus Duct Test Record 27 5.0 ATTACHMENTS 28 Attachment 5.1 SLD FOR #1 11KV SWGR A(P1BBA01) Attachment 5.2 SLD FOR #1 11KV SWGR B(P1BBA02) Attachment 5.3 SLD FOR #2 11KV SWGR A(P2BBA01) Attachment 5.4 SLD FOR #2 11KV SWGR B(P2BBA02) Attachment 5.5 SLD FOR INTAKE SWGR A(P0BBG03) Page of 27 Rev A Attachment 5.6 SLD FOR FGD 11KV MV SWGR(P0BBJ01, P0BBJ02) Attachment 5.7 SLD FOR CHS, ASH, NSPB (P0BBE01, P0BDD01, P1BDD01, P2BDD01, 11KV NSPB 3200A) Page of 27 Rev A 1.0 1.1 GENERAL PURPOSE Introduction and commissioning boundary This procedure covers the activities required for testing and commissioning of the following Overall 11kV MV SWGR system for Unit 1, 2, consist of the below table 1.2 KKS Number Description P1BBA01 11kV SWGR for UNIT (BOP, BLR, TBN) P1BBA02 11kV SWGR for UNIT (BOP, BLR, TBN) P2BBA01 11kV SWGR for UNIT (BOP, BLR, TBN) P2BBA02 11kV SWGR for UNIT (BOP, BLR, TBN) P0BBG03 11kV SWGR for Intake P0BBJ01 11kV SWGR for FGD P1BBJ01 11kV SWGR for FGD 1A P1BBJ02 11kV SWGR for FGD 1B P0BBJ02 11kV SWGR for FGD P2BBJ01 11kV SWGR for FGD 2A P2BBJ02 11kV SWGR for FGD 2B P0BBE01 11kV SWGR for CHS P0BDD01 11kV SWGR for ASH (Common) P1BDD01 11kV SWGR for ASH UNIT P2BDD01 11kV SWGR for ASH UNIT - 11kV NSPB, 3200 A Scope of Commissioning Package The commissioning package for Overall 11kV MV SWGR system, consist of the following packages : KKS Number Description Page of 28 Rev A 1.3 1.3.1 P1BBA01 11kV SWGR for UNIT (BOP, BLR, TBN) P1BBA02 11kV SWGR for UNIT (BOP, BLR, TBN) P2BBA01 11kV SWGR for UNIT (BOP, BLR, TBN) P2BBA02 11kV SWGR for UNIT (BOP, BLR, TBN) P0BBG03 11kV SWGR for Intake P0BBJ01 11kV SWGR for FGD P1BBJ01 11kV SWGR for FGD 1A P1BBJ02 11kV SWGR for FGD 1B P0BBJ02 11kV SWGR for FGD P2BBJ01 11kV SWGR for FGD 2A P2BBJ02 11kV SWGR for FGD 2B P0BBE01 11kV SWGR for CHS P0BDD01 11kV SWGR for ASH (Common) P1BDD01 11kV SWGR for ASH UNIT P2BDD01 11kV SWGR for ASH UNIT - 11kV NSPB, 3200 A The Safety Knowledge in operation Before the start of any testing it should be confirmed that all power supplies to the system have been isolated or that they are in a known condition The Commissioning engineer is responsible for the safety of those personnel working of the system Check for the presence of harmful electrical or mechanical potential energy before starting work 1.3.2 Project lockout / Tagout(LOTO) procedures must be adhere to all test area 1.3.3 Fire is strictly prohibited on site, no smoking there must be a warning mark in hazardous area 1.3.4 Strictly comply with the safety and environmental protection regulations of local government 1.3.5 In order to ensure the reliable operation of every part of the system, strictly obey the corresponding procedures 1.3.6 Have a regular maintenance for the long-time standby equipment 1.3.7 Obey the relevant safety regulations of the power plant during commissioning all along Ensure the successful commissioning work 1.3.8 All personnel directly involved with the commissioning that will attend a kickoff safety meeting to review for the dangers Ensure that all personnel understand the process and the operation Page of 28 Rev A Any personnel involved in the commissioning have the authority to terminate the operation at any time, if a serious problem or safety issue develops Page of 28 Rev A 2.0 INSPECTION AND TEST ITEM 2.1 Scope This procedure is applied for the site inspection and test of the overall 11kV MV SWGR on site 2.2 Code and Standard - IEC 62271-2 - IEC 62271-1 - Specification & Drawing 2.3 General test 2.4 Circuit Breaker test 2.5 Current Transformer test 2.6 Potential Transformer test 2.7 Protection Relay test 2.8 Meter & TD test 2.9 Di-electric Strength & Insulation Resistance test 2.10 Check for Phase Sequence(After energizing) 2.11 NSPB(Non-Segregated Phase Bus duct) Page of 28 Rev A 3.0 INSPECTION AND TEST METHODS 3.1 General test - Visual inspection ; Confirm the following items No Procedure Criteria Check the arranged condition of all panels Check the mounted conditions of each component & device Check the tightened condition of bolts & the marking of bolts for tightening Check the wire conditions Check the color of panels, painting condition Check the Labeling of Power, Control wiring and panels Method Approval Spec & Drawing - Dimension inspection ; Confirm the following items No Procedure Visual Torque wrench Criteria Method Check the dimension of panel enclosure Approval Spec & Drawing - Wiring check for CT,PT ; Confirm the following items No Procedure Check the wire spec, color and size Criteria Method Visual Approval Spec & Drawing Check the continuity of wiring for CT & PT circuit - Wiring check for CT,PT ; Confirm the following items - Check of the operational sequence ; All control circuits shall be checked in accordance with the schematic drawing by simulation at the rated voltage No Procedure Criteria Input control power(AC/DC) AC 230V, DC220V Check the Annunciation & lamp Check the Circuit breaker operation (Local & Remote Mode) Approval Spec Check the electrical interlock(2 Out of interlock & Drawing checks) Visual Buzzer Tester Method Visual & Operation Check the external contacts Page of 28 Rev A 3.2 Circuit Breaker test No Procedure Check the structure, nameplate data Check the manual charging operation Check the manual close operation (In the test position) Check the manual trip operation (In the test position) Nameplate & Shop Test Report Visual Approval Spec & Drawing Visual Test Instrument Approval Spec & Drawing Visual Test Instrument check (In the Test position) Check the automatic charging operation Check the manual close (In the connection position) and automatic charging Check the manual trip operation (In the connection position) Check the insulator 10 Check the circuit and contact 3.3 Method Repeat times close/open operation 11 Criteria Operation characteristic Test open : less than 40ms close : less than 60ms Time difference between phase and phase : less than 4ms Current Transformer test ; Confirm the following items No Procedure Verification with manufacturer's test certificates, nameplates details etc Ratio check Polarity check Subtractive Check the continuity of wiring for CT secondary circuit and ground connection CT Excitation Test(To be performed with CT which is used for protection relay) Approval Spec & Drawing CB analyzer (Refer to Note 5) Insulation test on secondary winding (Using DC 500V Megger) Criteria Approval Drawing Spec Approval Spec Above Method & Visual CT Tester (Refer to Note 1) CT Tester or Polarity checker (Refer to Note 1, 2) Visual Buzzer tester CT Tester (Refer to Note 1) Megger or CT Tester (Refer to Note 1) Page of 28 Rev A ▣ Note : Test method for CT - Safety Precaution Wear the insulation glove, shoes and helmet Install the safety tape around test site - Test method Make connections per diagram Select run test Select resistance, excitation & ratio test Select voltage and current range Set Name Plate Ratio Select default Test Note Start test Print test results ▣ Note : Polarity check method for PT Verify that the current transformer is being isolated from power source Make test setup as shown above A 6 10 V lantern-type battery can be used as DC voltage source Watching the analog-type meter, apply DC voltage momentarily by using the switch.( An analog-type milli-ammeter or milli-voltmeter can be used on this test) Record the polarity of current transformer Page 10 of 28 Rev A ▣ Note : check method for Operation Characteristic Test Check operating rightly by close, open CB in local /remote condition Earth by connecting earth wire to earth terminal of test equipment Connect main contact connection jack to main contact connection terminal and then connect main contact wire to both ends of ES or bushing One end of close, open source connection jack connect to test equipment and the other end connect to close, open terminal of VCB terminal Figure out property data by operating circuit breaker(Operate over times manually) 5.1 open : less than 40ms 5.2 close : less than 60ms 5.3 Time difference between phase and phase : less than 4ms 3.11 NSPB(Non-Segregated Phase Bus duct) - Visual inspection ; Confirm the following items No Procedure Arranged condition of Transformer Mounted conditions of fix bolt Criteria Method Approval Spec & Dwg Visual Tightened condition of bolts connections Check the cleanliness of Transformer 3.12 No NSPB – Insulation Resistance Test ; Confirm The Following Items Procedure Insulation Resistance test - Measure of insulation resistance - Using DC1000V Megger ※ Measured points - Line to Line - Phase to earth Criteria Method ; Above 50 Megger Tester Page 14 of 28 Rev A 3.13 NSPB – Di-Electric Strength Test No Procedure Criteria Method Di-electric Strength test Apply the test voltage between each electrically isolated Disruptive discharge should not be - Earth to phase occurred DC dielectric tester - Apply to table #1 - Phase to phase #Table Rated Voltage Specified Value 600V or below 2500V 11kV 28000V Auxiliary circuit 1500V Apply Time Remarks Minute Page 15 of 28 Rev A 4.0 RESULT OF CHECK SHEETS 4.1 General Test Record 4.2 Circuit Breaker Test Record 4.3 Current Transformer Test Record 4.4 Potential Transformer Test Record 4.5 Protection Relay Test Record 4.6 Indicating Meter With Transducer Test Record 4.7 Transducer Test Record 4.8 Di-electric Strength & Insulation Resistance Test Record 4.9 Di-electric Strength & Insulation Resistance Test Record 4.10 NSPB – Bus Duct Test Record Page 16 of 28 Rev A 4.1 General test record GENERAL TEST RECORD (ECTR-E-COM-010A) Sub contractor LS Industrial Systems Co., Ltd Equipment Description Locatio n DWG NO Contractor Doosan Heavy Industries & Construction Co., Ltd KKS NO Sheet NO TEST DATA NO ITEMS Visual Inspection RESULT REMARK Check the arranged condition of all panels Check the mounted conditions of each component & device Check the tightened condition of bolts & the marking of bolts for tightening Check the wire conditions Check the color of panels, painting condition Check the Labeling of Power, Control wiring and panels Check the dimension, wire spec, color and size of panel enclosure Check the continuity of wiring for CT & PT circuit Operational sequence test Check for control power line to supply power by multi-meter Clsoe & open test for circuit breaker in test positon according to sequence Clsoe & open test for circuit breaker in run positon according to sequence Indicating lamp check according to operation condition of ciruit breaker and fault Electrical interlock check between upstream and downstream/each other Binary input & output check for protection relay Trip test of MCCB by test button Trip test of protection relay by relay tester External contacts check(open & close condition) NO TEST EQUIPMENT CONTROL NO DUE DATE Prepared by LSIS DATE NAME SIGN Page 17 of 28 Rev A 4.2 Circuit Breaker Test Record CIRCUIT BREAKER TEST RECORD (ECTR-E-COM-010B) Sub contractor: LS Industrial Systems Co., Ltd Equipment Description : MV SWGR(SWGR No) Contractor: Doosan Heavy Industries & Construction Co., Ltd Document No Q-SITP-010 Location DWG No Single Line DWG KKS NO BREAKER NAME PLATE DATA Manufacture Type Rating(Amps) Serial Number Operating Voltage(V) TEST DATA Check The Breaker Rating and Identification Number is corrected Insulation Resistance( )/Using by 500V Megger Performed by(LSIS) Date Ambient Breaker Closed Breaker Opened L1 L2 L3 Temperature L1 L2 L3 L1-L2 L2-L3 L3-L1 ℃ Pri - Sec Pri - Sec Pri - Sec Test Value Operation Mechanism Check Performed by(LSIS) Date 3.1 Manual Charging Operation 3.2 Manual Close Operation (In the Test position) 3.3 Manual Trip Operation (In the Test position) 3.4 Repeat times Close/Open operation check (In the Test position) 3.5 Automatic Charging 3.6 Manual Close (In the Connection position) and Automatic Charging 3.7 Manual Trip Operation (In the Connection position) 3.8 Insulator Inspection 3.9 Circuit and contact Inspection 3.10 Breaker Mechanism is correct and No Wear and Damage 3.11 Lubrication is Correct in Accordance with Manual Performed by(LSIS) Date Operation Characteristic Test order work Mesure CB trip time Mesure CB close time Mesure CB time difference between phase and phase cretia less than 40ms less than 60ms Open less than 4ms Close Attatch Time (open) record Measure Judgement Attatch Time (Close) record Performed by(LSIS) Restoration (CB and its circuit are restored to original configuration.) Test Equipment Control No Cal Due Date Performed by(LSIS) Verified by( ) Name/Signature Date Name/Signature Date Approved by Date Date Page 18 of 28 Rev A 4.3 Current Transformer Test Record CURRENT TRANSFORMER TEST RECORD (ECTR-E-COM-010C) Sub contractor: LS Industrial Systems Co., Ltd Contractor: Doosan Heavy Industries & Construction Co., Ltd Document No DWG No KKS NO Equipment Description : MV SWGR(SWGR No) Location Single Line DWG No Nameplate Ratio : Serial No Q-SITP-010 Used For(Meter or Relay No.): Rφ: Yφ: Bφ: TEST DATA Visual Inspection Current transformer is installed satisfactory Ratio Tests Accuracy Class : Calculated Ratio : Accept Error ≤ ± Polarity Tests Performed by(LSIS): □Volt Rφ Date : %er r rati o %err Date : Date : Performed by(LSIS): Date : Insulation test on secondary winding(Using DC 5000V Megger) %er r □ Additive □ Subtractive Performed by(LSIS): rati o □Not Required Bφ Yφ rati o Polarity Test Result Measured Ratio Single Tap Multi Tap [%] Check Applied Method Check Applied Method : Performed by(LSIS): Secondary Circuit and ground connection Check All secondary winding - Ground : Accept : Above Performed by(LSIS): Restoration : Date : CT and its circuit are restored to original configuration Test Equipment Performed by(LSIS): Control No Due Date Verified by( Date: ) Name/Signature Date Approved by Name/Signature Date Page 19 of 28 Rev A 4.4 Potential Transformer Test Record POTENTIAL TRANSFORMER TEST RECORD (ECTR-E-COM-010D) Sub contractor: LS Industrial Systems Co., Ltd Contractor: Doosan Heavy Industries & Construction Co., Ltd Equipment Description : MV SWGR(SWGR No) Location Single Line DWG No Document No DWG No KKS NO Q-SITP-010 Used For(Meter or Relay No.): NAMEPLATE DATA MFGR.: Insu.Rating[BIL]: Nominal Ratio : Accuracy Class : Serial No Rφ : Visual Inspection [kV] Yφ : TEST DATA Rated Pri Volt: [V] Thermal Rating : at [℃] Bφ : [VA], Potential transformer is installed satisfactory Ratio and Polarity Performed by(LSIS) : Date : Performed by(LSIS) : Date : Ratio Rφ Yφ Bφ Insulation test on Primary & Secondary winding with ground Readings All secondary winding – Ground : Accept: above MΩ(Using DC 5000V Megger) All primary winding – Ground : Accept: above MΩ(Using DC 5000V Megger) Performed by(LSIS) : Restoration Completed Performed by(LSIS) : Date : Date : Remark : Test Equipment Control No Due Date Date Approved by( Verified by( ) Name/Signature ) Name/Signature Date Page 20 of 28 Rev A 4.5 Protection Relay Test Record Protection Relay Test Record (ECTR-E-COM-010E) Sub contractor: LS Industrial Systems Co., Ltd Equipment Description : MV SWGR(SWGR No) Location Single Line DWG No Manufacturer Relay Description : C.T Ratio Type or Model P.T Ratio Contractor: Doosan Heavy Industries & Construction Co., Ltd Document No Q-SITP-010 DWG No KKS NO NAMEPLATE DATA Serial No TEST DATA Rated current Visual Inspection Mashalling-Trip Relay Mashalling-LED Indications Measuring Values Injection [Current/Voltage] 50% [0.5A/31.8V] R: 75% [0.75A/47.6V] R: 100% [1A/63.5V] R: Secondary injection test Setting Test Item tap/time 50 Test Value(%) 100 110 110 I2 *3 I2 *3 Standard time(Sec) R/Y/B I Motor Start * 0.9 Actual time(Sec) R/Y/B 200 300 I Motor Norminal *5 G G G R/Y/B R/Y/B 46 49 51LR Test Phase R/Y/B R/Y/B R/Y/B R/G Test Value(%) 200 200 300 500 200 200 200 100 100 / / / Actual time(Sec) 50G(N)-2 50G(N)-1 50G(N) 27 59 81 87M 87L Y: Y: Y: Tolerances Standard time(Sec) R/Y/B Setting tap/time Test Phase R/Y/B 51 Test Item / / / Measuring Values Current[A] / Voltage[kV] / B: / B: / B: N: N: N: / / / 1% of measured value or 0.5% of I / VNom Pick-up (A or V) Drop-out (A or V) Pick-up (A or V) Drop-out (A or V) □ Check the 66 Trip & Restart Inhibit R/Y/B 66 Results : Remarks : Test Equipment Tested by(LSIS) : Control No Due Date Date : Verified by( ) Name/Signature Date Page 21 of 28 Rev A Approved by Name/Signature Date Page 22 of 28 Rev A 4.6 Indicating Meter with Transducer Test Record Indicating Meter with Transducer Test Record(ECTR-E-COM-010F) Sub contractor: LS Industrial Systems Co., Ltd Contractor: Doosan Heavy Industries & Construction Co., Ltd Equipment Description : MV SWGR(SWGR No) Document No Q-SITP-010 Location DWG No Single Line DWG No KKS NO NAMEPLATE DATA Type or Model P.T Ratio Manufacturer C.T Ratio TEST DATA Visual Inspection 1.1 Instrument is de-energized/Check the nameplate data 1.2 Bolts, Fittings, Mountings are tightened Serial No Accuracy 1.3 Check the enclosure for crack & integrity Description Rating Current transformer for metering Voltage transformer for metering Performed by(LSIS): Date : Expected Value Actual value Phase Injected Value R 0.25A Y 0.25A B 0.25A R 0.5A Y 0.5A B 0.5A R 1A 13200/ 110 Error(%) Remarks 1A Y B R-Y 1A 1A 110V 110V 110V P(MW) Y-B B-R Q(MVAR) S(MVA) Performed by(LSIS): F(HZ) PF(%) KWH KVARH R R R Current transducer Calibration by secondary injection 1A/110V 36.9Deg(5 Min) 0A 0.5A 1A Date : Restoration is completed Performed by(LSIS): Remarks : Test Equipment Control No Due Date Date : Verified by( ) Name/Signature Date Approved by Name/Signature Date Page 23 of 28 Rev A 4.7 Transducer Test Record Transducer Test Record (ECTR-E-COM-010G) Contractor: Doosan Heavy Industries & Construction Co., Ltd Sub contractor: LS Industrial Systems Co., Ltd Equipment Description : MV SWGR(SWGR No) Location Single Line DWG No Manufacturer C.T Ratio Document No Q-SITP-010 DWG No KKS NO NAMEPLATE DATA Type or Model Serial No Accuracy P.T Ratio TEST DATA 1.2 Bolts, Fittings, Mountings are tightened 1.3 Check the enclosure for crack & integrity Performed by(LSIS): Calibration by secondary injection Description Rating 1.1 Instrument is de-energized/Check the nameplate data Visual Inspection Phase Injected Value Expected Value Actual value Error(%) Remarks Performed by(LSIS): Restoration is completed Date : Date : Performed by(LSIS): Date : Remarks : Test Equipment Control No Due Date Verified by( Name/Signature Date Name/Signature Date ) Approved by : Page 24 of 28 Rev A 4.8 Di-Electric Strength & Insulation resistance Test Record DI-ELECTRIC STRENGTH & INSULATION RESISTANCE TEST RECORD (ECTR-E-COM-010H) Sub contractor: LS Industrial Systems Co., Ltd Contractor: Doosan Heavy Industries & Construction Co., Ltd Equipment Description : MV SWGR(SWGR No) Location Amb Temp Document No Q-SITP-010 Single Line DWG Humidity(%) DI-ELECTRIC STRENGTH TEST DATA Circuit Test condition Duration (Min) Test Volt Judgement (Disruptive discharge should not be occurred) Remarks Min 30kV Min 30kV Min 30kV CB is closed R-Y+B+E PT is opened CT is shorted CB is closed Y-B+R+E PT is opened CT is shorted CB is closed B-R+Y+E PT is opened CT is shorted Performed by(LSIS): Date : INSULATION RESISTANCE TEST DATA Circuit Test condition Test Acceptance Criteria Test Results(GΩ) R-Y+B+E Before Di-electric DC 1000V Y-B+R+E Before Di-electric DC 1000V B-R+Y+E Before Di-electric DC 1000V R-Y+B+E After Di-electric DC 1000V Y-B+R+E After Di-electric DC 1000V B-R+Y+E After Di-electric DC 1000V 50MΩ Above Performed by(LSIS): Date : Remarks Test Equipment Control No Due Date Verified by( ) Name/Signature Date Approved by Name/Signature Date Page 25 of 28 Rev A 4.9 Di-Electric Strength & Insulation resistance Test Record DI-ELECTRIC STRENGTH & INSULATION RESISTANCE TEST RECORD (ECTR-E-COM-010I) Sub contractor: LS Industrial Systems Co., Ltd Contractor: Doosan Heavy Industries & Construction Co., Ltd Equipment Description : MV SWGR(SWGR No) Location Amb Temp Document No Q-SITP-010 Single Line DWG Humidity(%) CONTACT RESISTANCE TEST DATA Circuit Test condition Test ampare Judgement (Disruptive discharge should not be occurred) Remarks DC100A DC100A DC100A CB is closed L1 PT is opened CT is shorted CB is closed L2 PT is opened CT is shorted CB is closed L3 PT is opened CT is shorted Performed by(LSIS): Date : Remarks Test Equipment Control No Due Date Date Approved by Verified by( ) Name/Signature Name/Signature Date Page 26 of 28 Rev A 4.10 NSPB - Bus Duct Test Record BUS DUCT TEST RECORD (ECTR-E-COM-030A) Contractor: Doosan Construction Co., Ltd Sub contractor: LS Industrial Systems Co., Ltd Heavy Industries & KKS NO : AS PER DWG Equipment Description : BUS DUCT(LINE No) Bus Duct Spec : NSPB Location : BLOCK#1 DWG No : Document No : TEST DATA Hanger rods & bracket installations Alignment & leveling of Bus ways Cleanliness of Enclosure & Paint Condition Visual Inspection Earthing system Performed by(LSIS): Date : Di-electric Strength test DI-ELECTRIC STRENGTH TEST DATA Circuit Duration (Min) Earth to phase Min 28 KV Phase to phase Min 28 KV Tightness test Judgement (Disruptive discharge should not be occurred) Test Volt Performed by(LSIS): Date : Check the tightness for bolted connections at Transformer & LV Switchgear sides Insulation Resistance test Performed by(LSIS): INSULATION RESISTANCE TEST DATA Circuit Test Volt phase to ground DC1000V Phase to phase DC1000V Acceptance Criteria Test Results(MΩ) R,Y,B - G R-Y Y-B B-R 50MΩ Above Performed by(LSIS): Date : Remarks Date : Test Equipment Control No Due Date Verified by(DOOSAN) Name/Signature Date Name/Signature Date Approved by(AES-EVN) Page 27 of 28 Rev A 5.0 ATTACHMENTS Attachment 5.1 SLD FOR #1 11KV SWGR A(P1BBA01) Attachment 5.2 SLD FOR #1 11KV SWGR B(P1BBA02) Attachment 5.3 SLD FOR #2 11KV SWGR A(P2BBA01) Attachment 5.4 SLD FOR #2 11KV SWGR B(P2BBA02) Attachment 5.5 SLD FOR INTAKE SWGR A(P0BBG03) Attachment 5.6 SLD FOR FGD 11KV MV SWGR(P0BBJ01, P0BBJ02) Attachment 5.7 SLD FOR CHS, ASH, NSPB (P0BBE01, P0BDD01, P1BDD01, P2BDD01, 11KV NSPB 3200A) Page 28 of 28 ... P2BBA02 11kV SWGR for UNIT (BOP, BLR, TBN) P0BBG0 3 11kV SWGR for Intake P0BBJ01 11kV SWGR for FGD P1BBJ01 11kV SWGR for FGD 1A P1BBJ02 11kV SWGR for FGD 1B P0BBJ02 11kV SWGR for FGD P2BBJ01 11kV SWGR. .. P0BBJ02 11kV SWGR for FGD P2BBJ01 11kV SWGR for FGD 2A P2BBJ02 11kV SWGR for FGD 2B P0BBE01 11kV SWGR for CHS P0BDD01 11kV SWGR for ASH (Common) P1BDD01 11kV SWGR for ASH UNIT P2BDD01 11kV SWGR. .. P2BBA01 11kV SWGR for UNIT (BOP, BLR, TBN) P2BBA02 11kV SWGR for UNIT (BOP, BLR, TBN) P0BBG0 3 11kV SWGR for Intake P0BBJ01 11kV SWGR for FGD P1BBJ01 11kV SWGR for FGD 1A P1BBJ02 11kV SWGR for