China Sg 3 Phase 30kVA 220V to 440V Step up Dry Type Variable Voltage Transformer, Find details about China Variable Transformer, Step up Transformer from Sg 3 Phase 30kVA 220V to 440V Step up Dry Type Variable Voltage Transformer
Why choose us:
All our voltage transformer we afford 2 years warranty(include customized products),
All our products'insulation level is H( no need add extra fees up F to H),
All our prodducts using 200 ° high temperature resistance material.(the best core material in the market)
All our prodcuts we got CE,ROHS,ISO:9001 certificate.
All our products 10pcs can delivery within 7 work days.
All our products age testing 12 hours before delivery
All our products overload capacity is 300% for 10 seconds, 150% for 120 seconds
All our products Power Factor is 0.85
All we cna free for printed your logo on our products if you need
30kva auto transformer detail pictures for you reference:
Technical parameters:
Rated capacity | 30KVA(we produce 3kva to 2000kva) |
phase number | 3 Phases |
Input voltage | 220VAC(can be customized) |
Output voltage | 440VAC (can be customized) |
Working frequency | 50/60HZ |
Rated current | 39A |
Short Circurt Impedance | 4% |
Voltage Resistance | 2500VAc/min (does not have the puncture, no break down) |
Insulation Level | Level H |
Insulation Resistance | > 100MΩ/ DC500V |
Materials | Transformer coil adopts 200 degree high temperature copper wire or aluminum wire. Silicon steel sheet, Baosteel, B50A470 material |
Main material winding | Aluminum/Copper |
Connection mode | Y(or customized as our requirements) |
Environment temperature | -10ºC +45ºC ;indoor enclosure, floor-mounted |
Temperature rise limit: | 100K (Actual temperature minus ambient temperature) |
Cooling mode | Natural cooling/ Fan system cooling |
Size(W*D*H) | 500*350*550mm |
Weight | 90KG |
Warranty | 2 years |
Our Transformer Testing Items:
Testing items | |||
No. | Test name | Routine Test | Optional Test |
1 | Input voltage test | √ | |
2 | 0utput voltage test | √ | |
3 | No-load loss and current test | √ | |
4 | PRI leakage sense test | √ | |
5 | Insulation resistance | √ | |
6 | Impedance voltage | √ | |
7 | Pressure test | √ | |
8 | Insulation resistance | √ | |
9 | Winding resistance test | √ | |
10 | Temperature rise test | √ | √ |
11 | Efficiency | √ | |
12 | Connection method | √ | |
13 | Inrush current test | √ | |
14 | Sound level test | √ | |
15 | Waterproof test | √ |