voltage transformer

It is outdoor, single phase and oil-immersed inductive voltage transformer, which is used for metering and relay protection of 66kv, 110/132kv, 220kv 50/60Hz. Please contact us! Email:

liujing@mec.com.cn

Product Details Company Profile

Description

Email: liujing@mec.com.cn

Skype:liujingmec

MSN:lijing_0612@126.com

It is cascade structure, which the primary winding has four frade grade windings surrounded on the limbs of two 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 of insulation, rich successful experience, a long 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 of partial discharge caused by air bubble and dust.

It has three secondary windings, which has individual measuring and protection winding.

There is a multi function oil drain valve on the base, which make it convenient for sampling, draining and refilling.

The secondary terminal board is made of epoxy casting, the seal performance is more reliable.

Item	Unit	JDCF-66	JDCF-110	JDCF-220
Rated voltage	kV	66/√3	110/√3 132/√3	220/√3
Highest voltage	kV	72.5/√3	126/√3 145/√3	252/√3
Rated frequency	Hz	50/60	50/60	50/60
Accuracy		0.2 0.5 3P	0.2 0.5 3P	0.2 0.5 3P
Thermal limiting output	VA	2000	2000	2000
Creepage distance	mm	W1/1500 W2/1820 W3/2250	W1/2520 W2/3150 W3/3906	W1/5040 W2/6300 W3/7812
Power frequency withstand voltage	kV	140(160)	185(200)(230)	395(460)
Lightning impulse withstand voltage	kV	325(350)	450(480)(550)	950(1050)