66kV Power Transformers

66 KV Power Transformers


Overview

66kV Power Transformer is a critical component in medium to high-voltage electrical power transmission and distribution systems. Its primary function is to step up or step down voltage levels efficiently while ensuring minimal power losses during the transmission process. These transformers are widely used in substations, grid interconnection points, and industrial facilities where power needs to be transferred across long distances or distributed at lower voltages.


Specification

 

Specificatiom

Parameter Value
Rating? Three Phase?up to?60?MVA
?Frequency  50 Hz, 60 Hz
Cooling? ONAN, ONAF?
Vector Group As?per customer specifications
Winding Material Cu or Al
Insulating Medium  Mineral?Oil?Ester?Fluid?or?Silicon Oil?as per?customer?specification?
Primary Voltage? Upto?145?kV?
Secondary Voltage? 66kV, 33kV,?11?kV, 6.6kV?(other Voltages as required)?
Tap Range ? Off circuit?or?On-load tap changers for HV / LV variation as per customer specification?
Impedance? In line with applicable standards?/ customer specification?
Applicable Standards IS, IEC, ANSI, IEEE, EN, etc.

 

Technical Information

Parameter
Contra-shield winding for uniform voltage distribution
Winding construction available with Continuously transposed conductor
Impulse testing available upto 800kV, 40 kJ suitable for 145 kV class transformers