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High Voltage Switchgear
9 Series · 83 Models
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High Voltage Switchgear Overview
High-voltage switchgear performs switching, protection, and control at the distribution level of power systems. QDTB offers metal-clad air-insulated switchgear, gas-insulated switchgear (GIS), and outdoor circuit breakers covering 7.2-40.5 kV, engineered to IEC 62271 and GB 3906. Key selection factors include rated short-circuit breaking capacity, busbar current, and the protection scheme. QDTB panels support overcurrent, earth fault, differential, and distance protection, with IEC 61850 communication for SCADA integration.
Available Series
SRM16 Series
The SRM16 series metal-clad withdrawable switchgear provides reliable medium voltage power distribution with withdrawable circuit breaker compartments. Features compartmentalized design for enhanced safety and easy maintenance access.
KYN28A Series
The KYN28A series is an improved variant of the KYN28 metal-clad withdrawable switchgear. Features enhanced compartmentalization, advanced interlocking systems, and VCB/VBI vacuum breaker integration for reliable 12kV power distribution.
KYN61 Series
The KYN61 series 40.5kV metal-clad withdrawable switchgear is designed for medium voltage power distribution at the 40.5kV level. Equipped with VBI/VCB vacuum breakers, suitable for power generation, mining, and petrochemical plant applications.
HXGN15 Series
The HXGN15 series fixed-type SF6 insulated switchgear provides an economical solution for ring main and terminal distribution applications. Type-tested to IEC 62271-200, features SF6 gas insulation for reliable indoor switching performance.
HXGN Series
The HXGN series fixed-type air-insulated switchgear provides a cost-effective solution for secondary distribution applications. Features air insulation for easy maintenance access and reliable indoor switching performance.
XGN2 Series
The XGN2 series fixed-type HV switchgear provides an economical alternative to withdrawable type switchgear for industrial power distribution and substation applications. Features robust fixed installation design with reliable circuit breaker integration.
KYN28 Series
The KYN28 series 40.5kV withdrawable switchgear features compact design with integrated vacuum circuit breakers. Suitable for mining, petrochemical, and power plant auxiliary power distribution applications requiring reliable medium voltage switching.
GCS-12(Z) Series
The GCS series medium-position withdrawable switchgear features compact design for restricted space installations. Equipped with VCB and drawout carriage mechanism, provides reliable medium voltage switching with efficient space utilization.
XGN66 Series
The XGN66 series air-insulated fixed switchgear provides economical medium voltage switching for indoor distribution applications. Features SF6 load break switch with metal-enclosed busbar design for reliable and cost-effective distribution network operation.
Instant Selection & Quote Calculator
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| Base price (interpolation) | $2,226 |
| × Product factor | ×1.0000 |
| × Country factor | ×1.0000 |
| × Copper-linked factor | ×1.0000 |
| + Options / accessories | $0 |
Complete equipment — no winding copper linkage
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Application Scenarios
Utility Substations
10-35 kV distribution with feeder protection.
Industrial
Motor control centers for heavy industry.
Power Generation
Generator output switchgear.
Commercial High-Rise
MV incoming up to 35 kV.
Data Centers
High-reliability with rapid fault isolation.
Mining
Ruggedized for harsh environments.
Technical Advantages
Arc-Proof
IEC 62271-200 Class A personnel safety.
Intelligent
IEC 61850 relay compatible.
Flexible
Fixed, withdrawable, GIS designs.
Seismic
Zone 4 compliance.
FAQ - High Voltage Switchgear
What is the difference between AIS and GIS switchgear?
How do I choose the short-circuit rating for switchgear?
What protection functions are available?
What is the typical operating voltage range?
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All specifications and dimensions can be customized upon request