Post Bushing for Transformer

Bushing Transformer is made of electric porcelain materials (mainly kaolin, quartz, feldspar, etc.) and is coated with a layer of glaze on the surface to enhance its insulation performance and anti-fouling ability.

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Description

Products Description

Name：Post Bushing for Transformer

These are high-voltage post bushing made of high-strength brown glazed porcelain. They provide rigid support and electrical insulation for high-voltage equipment and substations.

With excellent anti-pollution performance, high mechanical strength and stable insulation properties, they are widely used in power substations, switchgear and high-voltage distribution systems.

Product parameters

Parameter Item	C3341SC3341L57-1S57-1L	C3342SC3342L57-2S57-2L	C3343SC3343L57-3S57-3L	C3344SC3344L57-4S57-4L	C3345SC3345L57-5S57-5L
ANSI Class	57-1S / 57-1L	57-2S / 57-2L	57-3S / 57-3L	57-4S / 57-4L	57-5S / 57-5L
Creepage Distance (mm)	356	559	737	1015	1143
Dry Arcing Distance (mm)	165	241	311	368	438
Cantilever Strength (kN)	12.5	12.5	12.5	12.5	12.5
Low Frequency Dry Flashover (kV)	80	110	125	150	175
Low Frequency Wet Flashover (kV)	60	85	100	125	150
Critical Impulse Flashover, Pos.(kV)	30	180	210	255	290
Critical Impulse Flashover, Neg.(kV)	155	205	260	340	380
Test Voltage to Ground (kV)	15	22	30	44	44
Maximum RIV at 1000 KHz (µV)	100	100	200	200	200
Net Weight Approx (kg)	5	9.5	11	16	18
Number in Standard Package	6	3	3	2	2