|Type:||Lead Wire||Input Voltage:||380V|
|Output Voltage:||240V||Insulation Class:||F/H|
|Standard:||EN/UL/AS||Material:||Copper Or Aluminum|
|Cooling Method:||Air Cooling||Coil Structure:||Square Type|
25KVA automatic voltage transformer,
3 phase auto transformer 380V 240V,
automatic voltage transformer F H Class
25KVA Lead Wire Three Phase Auto Transformer 380V/240V F/H Class
(1) Since the calculation of the autotransformer is less than the rated capacity, under the same rated capacity, the main size of the autotransformer is smaller, and the effective materials (silicon steel, wires and structural materials (steel) are reduced accordingly. The effective materials are reduced to male the copper loss and iron loss are also reduced correspondingly, so the efficiency of the autotransformer is higher.At the same time, due to the reduction of the main size and the reduction of the quality, a single transformer with a larger capacity can be manufactured under allowable transportation conditions.
(2) Since the short-circuit impedance per unit value of the autotransformer is smaller than that of the double-winding transformer, the voltage change rate is smaller, but the short-circuit current is larger.
|Vacuum Pressure Impregnation|
|Rated Power||Upto 5000KVA|
|Input||Voltage||Rated Voltage ≤ 1000V|
|Current||Rated power/ Input Voltage / 1.732|
|Output||Voltage||Rated Voltage ≤ 1000V|
|Current||Rated power/ Output Voltage / 1.732|
|Duty Cycle||100% Continuous|
|No Load Current||<4%|
|Withstand Voltage||2500V, 1 Minute, No Flashover and Damage|
|Coil Temperature Rise||≤120K|
Natural Convection (AN)
Forced Air (AF)
|Working Environment||Ambient Temperature: -10℃ to +45℃|
|Relative Humidity: ≤95% (non-condensing)|
|Protection Degree||Indoor IP20 (NEMA 1)||Outdoor IP54 (NEMA 3)|
|Standards||In Accordance with IEC and EN|
1. Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.
2. Q: What is the lead time?
A: Sample time 3-7 days, we usually ship by DHL, UPS, FedEx,etc. Mass production time 7-25 days.
3. Q: How long is the warranty?
A: 24 monthes from B/L. If there are any accessory problems,just provide the photos of damaged accessory,then we will provide free service. According to the number of products,we will provide easily damaged accessories for free. we also can provide technical support if you need.
4. Q: Is OEM/ODM available?
A: Yes,it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.
a. Customized color and special function.
b. Customized box.
c. Print customer's logo(MOQ:≥10pcs).
d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.
5. Q: How to control the products quality?
A: Our company owns the core technology ,all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.