HV Porcelain Transformer Bushing

Specifications Our bushing is applied for oil-immersed type transformer, rated voltage from 12KV/250A to 36KV/3150A.

    Transformer bushing is an outlet device that draws the high and low tension leads of the transformer outside the tank,with specified electric strength and sufficient mechanical strength.The bushing insulation system depends on the voltage class of the coil connected and the conductive section and the form of the connectorlug lies on the operating current of the bushing.   1. Working condition and performance:     Ambient temperature:-45°C~+40°C;     Altitude:not higher than 1000m for common bushings and not higher than 2500m for the reinforced and antifouling bushings;     The common type is suitable for lightly dirty place and the antifouling one for heavily dirty place;     Assembling method:vertically and horizontally; 2. Symbol Meanings     B-For Transformer   F- Composite porcelain insulating   D- Single porcelain insulating      J- With supplementary insulation  Y- Oil-immersed type  L- Draw lead tpe  W-Antifouling type     The number before "/" listed in the model column indicates the rated voltage(kV),and the number afer "/" means the rated current(A)   Technical Parameters

Rated Voltage KV	Maximum Voltage KV	60s Power-frequency Withstand Voltage(Effective Value)		Lightning Impulse Dry Withstand Voltage(Peak Value)
		Dry	Wet
1		8
6	7.2	26	23	60
10	12	42	30	75
20	24	58	50	125
35	40.5	98	80	200
66	72.5	147	140	325