250KVA Transformer
Shinenergy’s 250KVA transformer is one kind of dry-type transformer, which is used to step down the high voltage to a lower level, the main function is to protect the utility in the electrical circuit and the operating person.
- Employ air as the cooling medium, low fire hazard
- Provide a safe working environment, protect people and electrical equipment
- Available working in 50 or 60 Hz
- CE, UL certificated
High Quality Core and Winding Material
Shinenergy’s 250KVA adopts high-quality silicone steel as the core material, high-quality aluminum foil, and copper foil as the winding material. The high-quality material with a good heat dissipation feature which could reduce the power loss of the whole transformer, and prevent the high temperature internal to cause the damage of the transformer or other electrical devices.
Fully Standard Production Tests
To guarantee quality, Shinenergy incorporates fully standard production tests which include resistance tests, turns ration tests, No-load loss &existing current tests, impendence and load-loss tests, applied potential tests, and temperature rise tests.
- Data sheet
- FAQs
| Model No. | MPT-022 |
| Application | PV Inverters |
| Core Material | Silicone Steel |
| Winding Material | Aluminum foil |
| Efficiency | 98.8% |
| Rated Current | 500A |
| Rated Inductance | 0.65mH |
| Frequency | 50/60Hz |
| Capacity | 250KVA |
| Ratio | 315/415V |
| Connection | Dyn11 |
| Weight | 730KG |
Q1: What’s the application of 250KVA transformers?
A1: Shinenergy’s 250KVA transformer could be applied to the PV inverters.
Q2: What’s the difference between using copper foil and aluminum foil?
A2: Copper foil is with high efficiency and better heat dissipation compared with aluminum foil, but the price is much higher than aluminum foil.
Q3: What is the isolation class of Shinenergy’s 250KVA transformer?
A3: The isolation class of Shinenergy’s 250KVA transformer could be F or H.
Main Advantages of 250KVA Transformer
Especially for big power PV inverters, the core of 250KVA transformer is electrically isolated, the working frequency is 50Hz which makes the transformer runs cooler, the optional cooling type: is AN or AF, the temperature rises less than 90°C, and the aluminum or copper winding is sealed in varnish.