25kva Transformer

What is a 25kVA transformer?

A 25kVA transformer is an industrial power transformer that features a primary single-phase voltage of 7,620/13,200 volts grounded Wye. It also has a secondary single-phase voltage of 120/240 volts. A 25kVA transformer is the determined size of a transformer. kVA stands for kilovolt amperes. However, when the 25kVA transformer is operated, this is expressed in Watts. The China 25kVA transformer manufacturers make 25kVA transformers that are approximately 490 x 285 x 530 mm in size. The permanent current that a 25kVA transformer can withstand is 36 Amperes and 400Vac.

Types of 25kVA transformers

A pad-mounted 25kVA transformer is a single-phase transformer that is installed on a concrete pad near the point of service. Its primary winding is made up of two to three wires that are placed in an underground vault. A pole-mounted 25kVA transformer is installed on a pole that is above the ground and near the service point. This is done to allow the secondary winding to be connected directly to the customer’s service drop.

What size breaker to feed a 25kVA transformer?

The breaker for a 25kVA transformer can handle more than 130 Amps for some time, depending on how much more the current is. It is estimated that a 1KW load would need a 1KVA transformer, which is a total of 1,000 Volt-Amps. Therefore, a 25kVA transformer can be connected and used to power six to seven homes at once. The rule when it comes to selecting a fuse for a 25kVA transformer is to choose one that is rated at 300% of the primary full load current. The fuse size should then be rounded up to the next larger standard size.

Each 25kVA transformer manufacturer provides their own 25kVA transformer specifications. It is key to read through the specifications on the 25kVA transformer for sale. A used 25kVA transformer may also work well. However, a new one will last longer and serve better without needing much servicing. Buyers can also explore the distribution 25kva transformer 26:1 ratio that is readily available in the market today.