Shandong Qixing High Voltage Electric Co., Ltd

RIP Bushing (Resin Impregnated Paper)

The main insulation of the RIP dry-type capacitive bushing core wound with imported crepe paper and aluminum foil, then vacuum-impregnated with epoxy resin and cured at high temperature. The external insulation use porcelain or composite housing. RIP bushings achieve dry-type, oil-free design, offering excellent insulation performance, small size, light weight, easy installation, maintenance-free operation, which is widely used in high-voltage power transmission and transformation equipment.

RIF Bushing (Resin Impregnated Fiber)

The main insulation of the RIF dry-type capacitive bushing is a solid capacitor core made of high-performance glass fiber impregnated with epoxy resin and cured at high temperature. The conductor can be of draw-lead or draw-rod type. The external insulation is silicone rubber sheds or porcelain. RIF bushing achieve oil-free, solid insulation design, maintenance -free operation, small size, light weight, installation at any angle, stable electrical performance, and no risk of combustion or explosion.

Product Showcase

Dry-type Capacitive Oil-Air Transformer Bushings, Oil-SF₆ Transformer Bushings, Oil-Oil Transformer Bushings, High-Current Transformer Bushings, GIS Bushings, and Wall Bushings for railways and SVG systems. The Voltage range covers 10kV to 550kV, Current ranges from 5A to 40,000A. With over 100 employees and designed annual output value of RMB 300 million, we have delivered nearly 50,000 bushings rated up to 550kV, among which 4,917 units are for railway projects, covering 75% of the railway market share.

Product Features:

Oil-free, gas-free, solid insulation structure, no fillers, no leakage, and maintenance-free;
High insulation margin, high corona inception voltage, partial discharge-free;
Flame-retardant insulation material, no combustion, no explosion risk;
Optimized size, light weight, easy to transport, and flexible installation at any angle;
Advanced mechanical layup, high bending strength, suitable for high-seismic areas;
Excellent high and low temperature resistance, suitable for electrostatic precipitators and superconducting cable joints;
Silicone rubber composite housing, anti-pollution flashover and self-cleaning, suitable for heavily polluted, coastal, and high-humidity environments;
Long product life, low long-term operating cost, short delivery time, and available for customized design.

550kV EHV Laborotary

We have built the 550kV extra-high voltage (EHV) testing laboratory with fully shielded hexahedral design, ensuring partial discharge (PD) background level below 3pC. Equipped with 1,000kV power frequency withstand voltage test system, 2,400kV lightning impulse withstand voltage test system, 600kV zero partial discharge, zero-loss high-voltage standard capacitor, as well as intelligent PD and dielectric loss measurement systems.

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