Chennai, Tamil Nadu, India
Our Products
| Rated Insulation level | Highest voltage for equipment kV | Rated separate source AC withstand voltage kV(r.m.s) | Rated lightning impulse withstand voltage kV(peak) |
|---|---|---|---|
| (a)Tapchanger to ground | 12 | 28 | 75 |
| (b)Between phases | 28 | 75 | |
| (c)Over tapping range | 8 | 25 | |
| (d)Between adjacent contacts | 8 | 25 | |
| (e)Between contacts of pre selector | 8 | 25 | |
| Weight of tap changer | 380 kg | ||
Technical Specification
| Rated voltage | 33 kv | 66 kv | 110 kv |
| Highest system voltage | 37 kv | 72 kv | 123 kv |
| Rated Insulation Level | |||
| i) Rated separate source AC withstand voltage | |||
| a) Tap-changer to ground | 70 | 140 | 230 |
| b) Between phases | 70 | 140 | 230 |
| c) Over tapping range | 50 | 50 | 50 |
| d) Between adjacent contacts | 50 | 50 | 50 |
| e) Between contacts of Change-over selector | 50 | 140 | 140 |
| ii) Rated lightning impulse withstand voltage kV(peak) | |||
| a) Tap-changer to ground | 170 | 350 | 350 |
| b) Between phases | 170 | 350 | 350 |
| c) Over tapping range | 150 | 150 | 150 |
| d) Between adjacent contacts | 150 | 150 | 150 |
| e) Between contacts of Change-over selector | 200 | 350 | 350 |
| Maximum rated through-current | 200 A | ||
| Direction of power flow | Bi-directional | ||
| Tapping arrangement | Coarse-fine,Reversing | ||
| Maximum number of tap positions | 23 | ||
| Switching capacity | 330 kVA | ||
| Rated step voltage | 1650 V | ||
| Oil displacement( In liters) | 285 | 355 | 383 |
| Oil quantity (In liters) | 270 | 325 | 350 |
| Weight of tap changer with oil | 606 Kg | 655 kg | 677 kg |
