How many transformers are in a substation?
A transformer substation usually has one or two power transformers, distribution equipment, control and protective devices, and auxiliary equipment.
What does a transformer do in a substation?
The transformer is the heart of the substation. The transformer changes the relationship between the incoming voltage and current and the outgoing voltage and current. Substation transformers are rated by their primary and secondary voltage relationship and their power carrying capability.
Do all substations have transformers?
There are many types of substations, each type of substation has various structural features, but all substations include the following parts: Transformers. Busbar system, isolation knife. Lightning protection system.
What is kV transformer?
The kVA unit represents kilovolt-amperes, or 1,000 volt-amperes. A transformer with a 1.0 kVA rating is the same as a transformer with a 1,000 VA rating and can handle 100 volts at 10 amps of current.
What types of transformers can be found in a substation?
Substation transformers are most often offered with one of 3 different fluids: Mineral oil or silicone transformer oil. Primary voltages of a substation transformer usually ranges from 2.4 kV to 69 kV in 225 through 20,000 kVA sizes, but 600 volt through 35 kV secondary voltage ratings are also available.
What type of transformer is used in substation?
The 132kV is the rating of the step-down transformer, which has a 132kV primary voltage. Generally, these transformers are employed in transmission type substations where the voltage has to be stepped-down to additional distribution.
Which transformer is used in home?
In distribution networks, the step-down transformer is commonly used to convert the high grid voltage to low voltage that can be used for home appliances.
Which type of transformer is used in substation?
Is Kv same as kVA?
KV = kilo volt, It always denotes a voltage value as electric voltage, EMF. Again KVA = kilo volt ampere, It denotes the value of power. As per the formula Power = current * voltage or P=VI .
What does 25kva transformer mean?
kVA stands for Kilovolt-Ampere and is the rating normally used to rate a transformer. The size of a transformer is determined by the kVA of the load. In many circumstances the power required by the load is equivalent to the rating of the transformer expressed in either VA or kVA.