1. प्रमाणित किया जाता है कि / Certified that:
| Installation Area | |||
| Equipment | |||
| Rated voltage | Rated current | ||
| Make | Ratio | ||
| Sr. No. | R: Y: B: | ||
| Between | R-Ph (GΩ) | Y-Ph (GΩ) | B-Ph (GΩ) |
|---|---|---|---|
| Primary - Earth |
| Primary Current (A) | Secondary Current (A) | ||
|---|---|---|---|
| R-Ph | Y-Ph | B-Ph | |
| Core 1: | Core 2: |
| Site | |||
| Equipment | |||
| Rating | Voltage | ||
| Tap | 1U1V (V) | 1V1W (V) | 1W1U (V) | Remarks |
|---|---|---|---|---|
| 3 | Satisfactory | |||
| 3 | Satisfactory | |||
| 3 | Satisfactory |
| Tap | Ratio | HV (V) | LV (V) | Obtained |
|---|---|---|---|---|
| 1 | 1.832 | 430 | 44.5 | 1.830 |
| 2 | 1.782 | 430 | 45.31 | 1.784 |
| 3 | 1.732 | 430 | 46.68 | 1.731 |
| 4 | 1.682 | 430 | 47.80 | 1.681 |
| 5 | 1.632 | 430 | 49.20 | 1.631 |
| HV Side (Ω) - Tap 4 | LV Side (mΩ) | ||||
|---|---|---|---|---|---|
| 1U1V | 1V1W | 1W1U | 2U2V | 2V2W | 2W2U |
| 0.0863 | 0.0865 | 0.0864 | 0.5205 | 0.5131 | 0.5204 |
| Sample | BDV (kV) | Temp (°C) |
|---|---|---|
| Top | 72 | 64 |
| Bottom | 77 | 66 |
| MAKE | SCHNEIDER ELECTRIC | Type | PX (12KV) |
| Sr. No. | 0226964195/01/10 | Date | 14.02.2025 |
| Rated Current | 1600 A | Short Time | 40kA / 3sec |
| Close Condition (GΩ) | Open Condition (GΩ) | ||||
|---|---|---|---|---|---|
| R-E | Y-E | B-E | R-R1 | Y-Y1 | B-B1 |
| >1000 | >1000 | >1000 | >1000 | >1000 | >1000 |
| Spring Motor | Closing Coil | Tripping Coil |
|---|---|---|
| 36.2 Ω | 66.9 Ω | 67.0 Ω |
| Operation | R (ms) | Y (ms) | B (ms) | Contact Resistance (µΩ) |
|---|---|---|---|---|
| Close | 53 | 52 | 53 | R-R': 20.1 |
| Open | 43 | 43 | 43 | Y-Y': 20.4 |
| C-O | 39 | 39 | 39 | B-B': 20.0 |
| ON/OFF Indication: OK | Spring Charge: OK | TNC Switch: OK |
| Rack In/Out: OK | Limit Switch: OK | Service/Test Pos: OK |
| Rating | 807 kW / 11 kV | Current | 51 A |
| Connection | STAR | Make | CG POWER |
| Phase | Resistance | Phase-Phase | Resistance |
|---|---|---|---|
| U1-U2 | 1.41 | U-V | 2.82 |
| V1-V2 | 1.41 | V-W | 2.82 |
| W1-W2 | 1.41 | W-U | 2.82 |
| Phase | 1 Min (GΩ) | 10 Min (GΩ) | PI Value |
|---|---|---|---|
| U-Earth | 19.6 | 107.2 | 5.47 |
| V-Earth | 25.4 | 122.9 | 4.84 |
| W-Earth | 28.2 | 144.6 | 5.13 |
| SN | Date | Pit No. | Location | Del |
|---|---|---|---|---|
| 1 |
| SN | Description | R | Size | Len | R-E | Y-E | B-E | HiPot | Del |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 3CX185 | 1200 | 1000M | 1000M | 1000M | OK | ||
| 2 | 1 | 3CX185 | 60 | 1000M | 1000M | 1000M | OK | ||
| 3 | 1 | 3CX185 | 500 | 1000M | 1000M | 1000M | OK | ||
| 4 | 1 | 3CX185 | 400 | 1000M | 1000M | 1000M | OK | ||
| 5 | 1 | 3CX185 | 450 | 1000M | 1000M | 1000M | OK | ||
| 6 | 1 | 4CX16 | 500 | 1000M | 1000M | 1000M | OK | ||
| 7 | 1 | 4CX16 | 20 | 1000M | 1000M | 1000M | OK | ||
| 8 | 2 | 4CX16 | 500 | 1000M | 1000M | 1000M | OK | ||
| 9 | 3 | 4CX16 | 20 | 1000M | 1000M | 1000M | OK |