รายละเอียดเพิ่มเติม
Product Description
Technical Parameters
| High voltage chamber | Description | Unit | Arguments |
| Rated frequency | HZ | 50 | |
| Nominal voltage | KV | 6 10 35 | |
| Maximum operating voltage | KV | 6.9 12 40.5 | |
| Rated current | A | 400,630,1250 | |
| Transfer current | A | 1200-2000 | |
| Rated short time current | KA | 12.5(2s/4s),16(2s/4s),20(2s/4s) | |
| Rated peak tolerable current | KA | 31.5,40,50 | |
| Power frequency withstand voltage – to ground and time/isolation fracture | KV | 32/36 42/48 95/118 | |
| Lightning Strike – to ground and time/isolation fracture | KV | 60/70 75/85 185/215 | |
| Rated short-circuit breaking current (current limiting fuse) | KA | 31.5 | |
| Switch off no-load transformer capacity | KVA | 2500 | |
| Transformer | Rated capacity | KVA | 30-2500 |
|
Tap range
|
% | ±2*2.5%,±5% | |
| Linkage group | Yyn0,Dyn11 | ||
| Impedance voltage | % | 4,4.5,6,8 | |
| Nominal voltage | V | 220,380,690,800 | |
| Low voltage chamber | Rated current of main loop | A | 50-4000 |
| Branch current | A | 5-800 | |
| The main circuit is rated to withstand short-time current | KA | 15(1s),30(1s),50(1s),65(1s) | |
| Rated peak tolerable current of main loop | KA | 30,63,110 | |
| shell | Protection class (conventional products) | IP33 | |
| Noise level | dB | ≤50 | |
| Enclosure temperature rise level | 10K |
WORKING CONDITIONS
1. Altitude: no more than 2000M.
2. Ambient temperature: high temperature: +40ºC; Low temperature: -45ºC : high monthly average temperature: +30ºC : high annual average temperature: +20ºC;
3. installation environment: no explosive, corrosive liquid, gas and dust, installation site without violent shock, allowed in a certain period of time Or run completely submerged in water.
4. Ground acceleration induced by earthquake Ag; The horizontal direction is lower than 3m/s; The vertical direction is lower than 1.5m/s.
5.the waveform of the power supply voltage: approximately sine wave.
6.three-phase power supply symmetry: for three-phase underground transformer, three-phase power supply voltage should be roughly symmetrical.
PRODUCTION DETAILS
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