描述

Purpose
It is outdoor, single phase and oil immersed inductive voltage transformer, which is used for metering and relay protection of132(110、66)kV,50 or 60Hz system.

Standards
IEC Standard:IEC60044-2《Inductive Voltage Transformer》 National Standard:GB1207《Voltage Transformer》
GB311.1《Insulation co-ordination for high voltage transmission and distribution equipment》

Service condition
Ambient temperature:-40~+40℃
Altitude:JDC6(F)-132(110、66)(W1,W2,W3) less than 1000m
JDC6(F)-132(110、66)GY(W2)less than 3000m
Environment pollution level:II、III、IV

System condition
System Rated Voltage:132kV 110kV 66kV 
System Highest Voltage:145kV 126kV 72.5kV 
System Rated frequency:50Hz or 60Hz
System neutral earthing method: effectively earthed

Structure feature
• It is cascade structure, which the primary winding has four grade windings surrounded on each limbs of one single phase two-limb core. The insulation consists of high voltage cable paper, phone paper and cardboard etc, which will be immersed with transformer oil after desiccating under vacuum. It has advantages of stable and reliable performance ofinsulation, rich successful experience, along life time and convenient maintenance
• Perfect fluidity performance of transformer oil is good for heat dissipation, it also has self recover ability for the failure ofpartial discharge caused by air bubble and dust.
It has two or three secondary windings, which has individual measuring and metering winding.
• Hermetically sealed stainless steel metallic bellows is installed on the top, which protects the transformer oil from moisture and extend the life time, also there is a oil level gauge on the bellows for observing the changing of oil volume.
• There is a multi function oil drain valve on the base, which makes it more convenient for sampling and draining.
• The secondary terminal board is made of epoxy casting, the seal performance is more reliable.
• If you have special requirement for our product, please add note explanation