| Type Test Certificates - Switchgear | ||||||
| Cat | Product | Rating | Test Details | Test Location | Rep No. | Date |
| A | Air Break Isolator | 29KA rms for 1 sec | 20.63 rms for 1 sec & | CPRI Bangalore | SC/92/99/A | 30th Apr 1992 |
| & 50KA peak | 50KA peak, Clause 3.3 | |||||
| 11KV 630A | of IS:9921 (Part 4) - 1985 | |||||
| Short time withstand current & | ||||||
| peak withstand current | ||||||
| R | Panel with Load break | TKL 3/12, 11KV, 400A | 26.3KA rms for 1 Sec & 80KA Peak | CPRI Bangalore | SC/92/99/C | 1st May 1992 |
| switch | 3 phase, 50Hz | 31.5KA rms for 1 Sec & 80KA Peak | ||||
| Clause 8.4 of IS:3427 - 1969 | ||||||
| Short time current test on Main | ||||||
| Circuits | ||||||
| A | Load Break Switch | TKL 3/12/630A | 31.5KA rms for 1sec & 80KA peak | CPRI Bangalore | SC/89/76/D | 3rd April 1989 |
| 12KV 630A Three Poles | 25.1KA rms for 1.7sec (Equivalent | |||||
| 50 Hz, 1 breaks per | to 32.73KA for 1 sec ) & 80.64KA | |||||
| Pole | Peak IS:9920 (Part IV) - 1985 | |||||
| Short time withstand currrent &Peak | ||||||
| withstand current | ||||||
| A | Load Break Switch | TKL-3 / 11KV / 1250A / | Short Circuit Current Carrying | CPRI Bangalore | SC/92/154/B | 22nd July 1992 |
| 210 -D, 11KV, 1250A | Capability | |||||
| 26.2kA rms for 3 sec & 65.5kA Peak | ||||||
| 26.3kA rms for 3 sec & 66.7kA Peak | ||||||
| Clause 3.4 of IS:9920 (Part 4) - 1985 | ||||||
| A | Load Break Switch | TKL3/12/630A | Rated peak withstand current & | CPRI Bangalore | SC/90/84 | 3rd Apr 1990 |
| Air Break | 12KV 630A 50Hz | rated short time withstand current | ||||
| 100 KA peak & 40 kA for 1 sec | ||||||
| 101.76kA Peak & 28.75kA rms | ||||||
| for 2.2 Sec ( Equivalent to 42.64kA | ||||||
| rms for 1 sec) | ||||||
| IS:9920 (Part 4) - 1985 | ||||||
| A | Load Break Switch | 11kv Load Break Switch | Short time withstand current & Peak | CPRI Bangalore | SC/93/174/B | 3rd Aug 1993 |
| Air Break | TKL3/12/1250/210-D | withstand current | ||||
| 11KV 1250A Three Pole | 40kA rms for 1 sec & 100kA Peak | |||||
| Clause 3.3 of IS:9920 (Part IV)-1985 | ||||||
| A | Off Load Isolator | 33KV 630A Air Break | Short time withstand current and | CPRI Bangalore | SC/92/154/A | 22nd July 1992 |
| TKL-3/33KV/630A | Peak withstand current | |||||
| 20kA rms for 1 sec & 50 kA Peak | ||||||
| Clause 3.3 of IS:9921 (Part 4)-1985 | ||||||
| A | 33KV Off Load Isolator | TKL3/33-630 Air Break | Short time withstand current & Peak | CPRI Bangalore | SC/93/174/A | 2nd Aug 1993 |
| 3 Poles 50Hz | withstand current | |||||
| 26kA rms for 1 sec & 65kA peak | ||||||
| Clause 3.3 of IS:9921 (Part IV)-1985 | ||||||
| A | Load Break Switch | 11KV 630A, | Short Circuit Making Test | CPRI Bhopal | 92/STN-1/134 | 1st July 1992 |
| TKL3/12/630A-D | Insulation Level - 35/75KV Pk | |||||
| Rated Short Circuit Making Current | ||||||
| 62.5kA Pk | ||||||
| Clause 3.3.14.7 of IS:9920 (Pt-4),1985 | ||||||
| A | Load Break Switch | 11kV 400A | Test Duty 2 | CPRI Bhopal | 92/STN-1/52 | 2nd March 1992 |
| TKL3/12-400/150-D | Rated short circuit making current | |||||
| 80kA pk | ||||||
| Rated short time current | ||||||
| a) Dynamic 80kA Peak | ||||||
| b) Thermal 31.5kA rms for 1 sec | ||||||
| Clause 3.3.14.2 of IS:9920(pt-4),1985 | ||||||
| A | Load Break Switch | 11kV 630A Load Break | Impulse and Power Frequency | Department of | Ref - ABSM/ | 14th Mar 1989 |
| Switch Drg No. ABSP | Withstand test on 11kV 630A Load | High Voltage | CE/89/2601 | |||
| -18 | Break Switch | Engineering | dt. 27.02.89 | |||
| Impulse test at 75kV and 85kV Peak | Anna University | |||||
| at STP and Power Frequency withstand | ||||||
| test at 35kV and 45kV at STP | ||||||
| IS:9920 (Part I to IV) 1985 | ||||||
| A | Load Break Switch | Isolator 11kV 630A | Temperature rise test | Dept of Electrical | EEL/Switch/ | 15th Mar 1989 |
| Load Break Switch | Temp rise in Centigrade of Various | Engineering | 4/89 | |||
| Panel | Parts | Anna University | ||||
| Room Temp in C - 31 | ||||||
| Relative humidity - 70 | ||||||
| IS:9920 Part III as per table 4 | ||||||
| A | Load Break Switch | Air Break TKL3/12/630A | Rated Peak Withstand current and | CPRI Bangalore | SC/89/13 | 23rd Jan 1989 |
| 12KV 630 51KA Peak | rated short time withstand current | |||||
| 20KA rms for 1 Sec | 52.5KA peak and 20.2 KA rms for | |||||
| 50Hz 3Poles | 1 sec | |||||
| IS:9920 (Part 4 ) - 1985 | ||||||
| R | Ring Main Units | Metal enclosed | Short time current test on Main | CPRI Bangalore | SC/95/114/B | 22nd May 1995 |
| Switchgear & Control | Circuit | |||||
| gear Assembly | 13.1kA rms for 3 sec & 33kA peak | |||||
| 12KV RMU | Clause 4.6 & 4.7 of IS 3427-1969 | |||||
| R | Field Switch Panel | 6.6kV Field Switch Panel | Short time current test on Main | CPRI Bangalore | SC/95/114/A | 22nd May 1995 |
| 20kA rms for 1 sec & | Circuit | |||||
| 50kA peak | 20.32 kA rms for 1.06 sec & | |||||
| 53.85kA peak | ||||||
| Clause 4.6 & 4.7 of IS 3427-1969 | ||||||
| R | Load Break Switch | 7.2KV 400A Load Break | Environmental Tests on Load Break | Govt of India | 66/E/PEPL/ | 16th Sep 1993 |
| Panel | Switch Panel (Outdoor | Switch | Ministry of Def | P/22/93-94 | ||
| Type) | IP-55 As per IS:12063-1987 (Cat-2) | (DGQA) | ||||
| 2 KVAC for one Minute | Bangalore | |||||
| R | Ring Main Unit | 12KV 400A Ring Main | IP X5 Test | CPRI Bangalore | 20/EATD/ | 28th June 1985 |
| Unit (HV / LV Panel) | 12KV 400A IS:2147-1962 | IP-16/95-96 | ||||
| a) Insulation resistance test at | ||||||
| 1000V D.C. - 18.4 Meg Ohms | ||||||
| b) Power Frequency High Voltage | ||||||
| test at 2.5KV AC for 1 Min - Withstood | ||||||
| R | Ring Main Unit | 12KV 400A Ring Main | IP X5 Test | CPRI Bangalore | 19/EATD/ | 28th June 1995 |
| Unit (Without L.V. Panel) | 12KV 400A IS:2147-1962 | IP-16/95-96 | ||||
| a) Insulation resistance test at | ||||||
| 1000V D.C. - 5000 Meg ohms | ||||||
| b) Power Frequency High Voltage | ||||||
| test at 2.5KV AC for 1 Min - Withstood | ||||||
| ES | Earth Switch | 12kV Earth Switch (Acc | Short time Current test | CPRI Bhopal | 94/STN-1/ | 16th Aug 1994 |
| to Isolator) | 44 kA rms for 1 sec with an initial | 222-A | ||||
| Designation & Type- | peak of 110 kA | |||||
| Air Break, Spring Assisted | Clause 3.3 of IS:9921 (Pt-4),1985 | |||||
| Type EU | ||||||
| ES | Earth Switch | 12kv Earth Switch (Acc to | Short time Current Test | CPRI Bhopal | 94/STN-1/ | 16th Aug 1994 |
| Isolator) | 25ka rms for 3 sec with an initial | 222-B | ||||
| Designation & Type - | peak of 62.5kA | |||||
| Air Break, Spring Assisted | Clause 3.3 of IS:9921 (Pt-4) 1985 | |||||
| A | Isolator | 12kV / 17.5kV 630A 3 pole | Temperature rise test | CPRI Bangalore | CC - 5393 | 1st July 1997 |
| TKL-3/12/24/95/630/210-D | Resistance of the Main Circuit-Before | |||||
| & After Temperature Rise Test | ||||||
| As per IEC 129 - 1984 & IS 9921 | ||||||
| Part IV - 1985 / RA1992 | ||||||
| A | Isolator Switch | 12/17.5kV with Mounting | Temperature rise test | Anna University | SEEE/LBS/ | 5th Aug 1997 |
| Stand and Accessories | IEC 129-1984 and Clause 6.102.3 | 1/97 | ||||
| IS -9921 (Part 4)-1985 Clause 3.5.3 | ||||||
| A | Isolator | 12KV/17.5kV 630A Three | a) Lightning Impulse Voltage Withstand | CPRI Bangalore | No.43/1/97 | 13th June 1997 |
| Pole Indoor Type | Test | -HV/6426/ | ||||
| TKL-3/12/24/95/630/210-D | b) P.F Voltage withstand Test (Dry) | A.Bond | ||||
| Test Voltage as per 17.5kV rating | ||||||
| IEC:129/84(A1)92, IS:9921(Part-II & IV) | ||||||
| /1982/1985 - RA-1992 | ||||||
| ES | Earth Switch | 12kV | Short Circuit Making Capacity Test | CPRI Bhopal | 2000/STN-1 | 8th May 2000 |
| (Test duty - 5) | /107 | |||||
| Short Circuit Making Capacity-62.5kA | ||||||
| Peak at 12kV | ||||||
| As per IEC:60265-1, IEC:60129,1984 | ||||||
| and IS:9920, Part-4,1985 | ||||||
| R | Load Break Switch | 33kV 630A three Phase | Resistance Measurement of the Main | CPRI Bangalore | CC-5894 | 7th Oct 1998 |
| in Panel | Circuit | |||||
| Temperature Rise Test | ||||||
| As per IS:9920(Part4)-1985/RA-1992 | ||||||
| A | Isolator Changeover | 33kV 2500A & 1250A | Impulse Voltage Withstand Test | Dept of High | Lr.No.F:133 | 24th Sep 1996 |
| Box | Test Conducted at 170kV BIL and | Voltage | ||||
| 195kV BIL | Anna University | |||||
| IEC:298, Clause 6.1.6, 1981 | ||||||
| R | Load Break Switch | 11kV 630A | Impulse Voltage withstand Test | Dept of High | Lr.No.144/ | 24th June 1994 |
| with Cubicle | Tested at 75kV BIL | Voltage | MSEB/7454 | |||
| Anna University | ||||||
| R | Isolator Panel | 11kV 630A | Impulse Voltage Withstand Test | Dept of High | Lr.No.133/KK | 6th Jan 2000 |
| Test Conducted at 80kV BIL | Voltage | /12-99 | ||||
| Anna University | ||||||
| C | Automatic Vacuum | 11kV 200A 12.5kA rms | Special electro mechanical endurance | CPRI Bhopal | 2002/STN-1 | 11th March 2002 |
| Capacitor Switch | test - 4000 close -open switching | /87 | ||||
| operations of 11kV 600kVAR Capcitor | ||||||
| Bank | ||||||
| C | Vacuum Capacitor | 12kV 200A | Mechanical Endurance Test | CPRI Bangalore | HPL/98/147 | 19th Aug 1998 |
| Switch | 3 Poles, 6 kA rms for 1 sec | IS:9920(Ppart4) 1985 | ||||
| & 15kA Peak | ||||||
| ES | Earthing Switch | 12kV EU type 2 | Short time and Peak withstand current | CPRI Bangalore | HPL/94/69 | 2nd Sep 1994 |
| Air Break Spring Assisted | test IS 9921-Part4 (1985) | |||||
| 40kA rms for 1 sec and 110kA Peak | ||||||
| ES | Earthing Switch | 12kV EU type 1 | Short time and Peak withstand current | CPRI Bangalore | HPL/94/70 | 2nd Sep 1994 |
| Air Break Spring Assisted | test IS 9921-Part4 (1985) | |||||
| 40kA rms for 1 sec and 110kA Peak | ||||||
| ES | Earthing Switch | 12kV Indoor Type A | Short circuit making capacity | CPRI Bangalore | ||