Products Description
The Off Load Tap Changer (also called De-energized Tap Changer or No-Load Tap Changer) is designed to adjust transformer voltage ratios when the transformer is completely de-energized.
It is widely used in oil-immersed and dry-type distribution transformers, providing a safe, reliable, and cost-effective solution for voltage regulation.
The switch operates manually and allows precise tap selection while the transformer is off-circuit, making it ideal for power distribution, industrial, and utility transformer applications.
Type:bar
Minimum order quantity: 10 pieces
Product types we provide: bar-type tap changer, disc-type tap changer, cage-type tap changer
Product price: EXW
Payment: T/T, L/C
Product parameters
Type of tap-changer |
Rated current(A) |
Highest voltage for equipment (kV) |
Range of voltage regulation |
NO.of phases |
Regulating position |
Install dimension(mm) |
Holes on tank cover(mm) |
||||||
| L | L1 | L2 | L3 | n | |||||||||
| WDT | I | 200~800/40.5-3×3 | 200,400 500,630 800 |
40.5 | ±5% | 1 | Linear voltage regulating |
744 | 144 | 80 | 170 | 2 | φ80 |
| WDT | I | 200~800/40.5-5×5 | ±2×2.5% | 888 | 288 | 80 | 170 | 4 | |||||
| WDT | I | 200~800/40.5-7×7 | ±3×2% | 1032 | 432 | 80 | 170 | 6 | |||||
| WDT | I | 200~800/40.5-9×9 | ±4×1.25% | 1196 | 576 | 100 | 170 | 8 | |||||
Product advantages：
Drawing
FAQ
Who are we?
We are based in hangzhou, China, start from 2005,sell to Domestic Market(90.00%),Southeast Asia(10.00%). There are total about 51-100 people in our office.
How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
Why should you buy from us not from other suppliers?
Founded in 2005, the company is a national high-tech enterprise. We have an experienced technical team.
Can i get some samples for testing before placing order?
Yes, we can provide you some free samples for your testing if you would like to accept the transportation fee.
certificate
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