50,000+
Bushings Delivered
About us
Dry-type Bushing Manufacturer | 550kV Testing Capability
Founded 2013, 50,000+ installations, ISO-certified factory with in-house 550kV EHV testing laboratory. Co-drafter of DL/T 1001-2024.
12+
Years Manufacturing
75%
Railway Market Share
60+
Export Countries
National high-tech enterprise specializing in RIP/RIF dry-type capacitive bushings
Shandong Qixing High-voltage Electrical Co., Ltd. was founded in 2013 in Gaomi City, Shandong Province. As a national high-tech enterprise integrating R&D, production and sales, we are committed to providing high-quality, safe and environmentally friendly dry-type capacitive bushing solutions for the global power and energy industry.
We manufacture Resin Impregnated Paper (RIP) and Resin Impregnated Fiber (RIF) bushings covering six core product types:
With over 50,000 bushings delivered, including 4,917 units for railway projects holding 75% of China's railway market share, our products serve State Grid, China Southern Power Grid, and major energy groups across 60+ export countries.
As co-drafter of the DL/T 1001-2024 power industry standard, Qixing combines manufacturing expertise with standards-level technical knowledge. Every bushing is type-tested in our in-house 550kV EHV laboratory and shipped with full inspection documentation.
Factory highlights
- Founded
- 2013
- Location
- Gaomi, Shandong, China
- Facility
- 9,950 m2
- Employees
- 100+
- Annual Capacity
- RMB 300M
- Core Technology
- RIP / RIF Dry-type
- Voltage Range
- 12kV - 550kV
- Current Range
- 5A - 40,000A
- Standards
- IEC 60137, GB/T 4109, DL/T 1001
550kV EHV testing laboratory with fully shielded design
Our in-house 550kV extra-high-voltage testing laboratory features a fully shielded hexahedral design with partial discharge background levels below 3pC, ensuring every bushing undergoes rigorous type-test verification before delivery. The facility is equipped for power frequency, lightning impulse and partial discharge testing up to the highest voltage classes we manufacture.
- 1,000kV power frequency withstand voltage test system
- 2,400kV lightning impulse withstand voltage test system
- 600kV zero partial discharge test system
- Zero-loss high-voltage standard capacitor
- Intelligent PD and dielectric loss measurement system
- Fully shielded hexahedral lab - PD background < 3pC
Dry-type capacitive bushings — 12kV to 550kV, 5A to 40,000A
Our product portfolio covers Oil-Air, Oil-SF₆, Oil-Oil, High-Current, GIS and Wall Bushing types for transformers, switchgear, railway traction and SVG systems. With a designed annual output of RMB 300 million, we have delivered nearly 50,000 bushings rated up to 550kV, including 4,917 units for railway projects holding 75% of China's railway market share.
Oil-free, gas-free solid insulation
No fillers, no leakage, maintenance-free dry-type design
High insulation margin & PD-free
High corona inception voltage, partial discharge-free operation
Flame-retardant & explosion-proof
Solid insulation material — no combustion, no explosion risk
Compact & lightweight
Optimized dimensions, easy to transport, installation at any angle
High mechanical strength
Advanced layup process, high bending strength for seismic zones
Extreme temperature resistance
Suitable for ESP and superconducting cable joint applications
Anti-pollution composite housing
Silicone rubber sheds — self-cleaning, ideal for coastal and polluted environments
Long service life & fast delivery
Low long-term operating cost, short lead time, custom designs available
Resin Impregnated Fiber — solid insulation for demanding environments
RIF dry-type capacitive bushings use a solid capacitor core made of high-performance glass fiber impregnated with epoxy resin and cured at high temperature. Available in draw-lead or draw-rod conductor configurations, with silicone rubber sheds or porcelain external insulation.
RIF technology delivers an oil-free, solid insulation design that is inherently maintenance-free. The compact form factor supports installation at any angle with stable electrical performance and zero risk of combustion or explosion — making it the preferred choice for safety-critical applications.
Resin Impregnated Paper insulation for transformer and GIS interfaces
RIP bushings use resin-impregnated paper as the main insulation system, giving stable electrical performance, compact dimensions, lighter weight and maintenance-free operation for high-voltage transmission and transformation equipment.
Proven in railways, substations and energy infrastructure
Products are widely used in key railway, grid and energy projects including Lhasa-Nyingchi Railway, Chengdu-Chongqing High-Speed Railway, Changsha-Kunming High-Speed Railway, Zhengzhou-Fuyang Railway and utility-scale solar projects.
Trusted by power grids, railways and energy projects in 60+ countries
From the China-Laos Railway and Lhasa-Nyingchi high-altitude line to State Grid 500kV substations and utility-scale solar projects, Qixing bushings are proven in demanding environments. Our products also serve Huadian, Huaneng, SPIC, CHN Energy, Datang and other major energy groups.
Power Transformers
Bushings for oil-immersed power transformers from 12kV to 550kV in utility substations and industrial plants.
GIS Connections
Oil-SF6 and GIS bushings for compact switchgear interfaces and transformer-to-GIS transitions.
Wall Penetration
FRP capacitive wall bushings for indoor-to-outdoor high-voltage transitions in power stations.
Replacement Projects
Drawing-based and sample-based retrofit support for aging transformer fleets worldwide.
Trusted by industry leaders
ISO certified, IEC & GB/T compliant
Building a world-class brand in power insulation
Looking ahead, Qixing will continue to focus on dry-type capacitive bushing technology, high-voltage insulation engineering and international project support, creating lasting value for global customers and contributing to a stable, sustainable energy future.
Talk to Mark Yan about your project requirements
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