Product Overview
Our independently developed SXGTU gas-filled non-partial discharge combined electrical test device (GIS partial discharge withstand voltage test equipment) is specially designed for high-voltage gas-insulated power equipment such as GIS and GIL. It can complete factory type test, factory quality inspection test and on-site preventive handover test of such equipment in one stop.
Equipped with external interface for high voltage bushing, the device is also compatible with withstand voltage and partial discharge detection of traditional high-voltage electrical equipment. It is essential core high-voltage test equipment for high-voltage switch manufacturers, power testing institutions and power grid operation & maintenance companies.
Adopting integrated gas-filled shielding structure, the whole equipment suppresses partial discharge in an all-round way from hardware structure, insulation design and shielding technology, realizing long-term stable test in multiple scenarios such as high-voltage laboratories, substation sites and equipment manufacturing plants.
Main Features
- The high voltage part adopts full shielding sealed structure, greatly improving the safety and stability of the whole testing process.
- Whole machine partial discharge index is controlled steadily within 1~3pC under rated working voltage.
- Compact overall structure, small floor occupation, lightweight assembly for easy site layout.
- Integrated built-in high voltage disconnector, realizes multi-functional test demands in one integrated system.
- Simple wiring connection mode, can be directly connected to tested samples to simplify field test operation.
- Solid & sturdy mechanical structure, good shock resistance, adapts to long-distance land & sea transportation.
- Lower requirement for matched supporting power supply capacity, reducing user’s supporting configuration cost.
Advantage
Compact Structure
The equipment adopts a modular design, reducing transportation and installation difficulties.
High Test Efficiency
The resonance principle allows testing of high-capacitance GIS equipment with lower input power.
Stable Voltage Output
Advanced frequency regulation technology provides stable test voltage.
Flexible Configuration
The system can be configured according to different GIS voltage levels and capacitance requirements.
Application
- Factory withstand voltage & partial discharge detection for GIS, GIL gas insulated power equipment.
- R&D type test, routine delivery test of high voltage switchgear products.
- Substation on-site handover test, periodic preventive maintenance test for GIS equipment.
- Voltage withstand test & PD inspection for traditional high voltage electrical appliances.
Specification
| Parameter |
Specification |
| Rated Voltage Grade |
100kV, 200kV, 250kV, 300kV, 500kV, 800kV, 1000kV
(Ultra-high voltage grades support customized development) |
| Rated Capacity |
50kVA ~ 2000kVA
(Super large capacity can be customized) |
| High Voltage Boost Mode |
HV transformer boost + series resonance mode
(power frequency / variable frequency optional)
Single-stage boosting structure, no cascade boosting required |
| Primary Input Voltage |
0.35kV ~ 10kV |
| Equipment Self Partial Discharge |
1 ~ 3pC (under rated voltage, standard ambient condition) |
| Temperature Rise Index |
≤65K after 60min continuous operation under rated current (50Hz) |
FAQ
1.What is a GIS Partial Discharge & Withstand Voltage Test System?
A:A GIS Partial Discharge & Withstand Voltage Test System is a specialized high voltage testing device designed for insulation performance verification of Gas Insulated Switchgear (GIS) and Gas Insulated Lines (GIL). It generates stable AC high voltage output to perform power frequency withstand voltage tests and partial discharge measurements, helping detect insulation defects, assembly problems, and potential failure risks before GIS equipment is energized.
2.Why is AC withstand voltage testing required for GIS?
A:AC withstand voltage testing verifies whether GIS insulation can safely withstand operating voltage and temporary overvoltage conditions.
3.What voltage levels can this GIS test system support?
A:The GIS Partial Discharge & Withstand Voltage Test System can be customized according to different GIS voltage classes. Typical voltage levels include:
- 100kV
- 200kV
- 250kV
- 300kV
- 500kV
- 800kV
- 1000kV
Higher voltage levels can be customized according to customer requirements.
4. How does the GIS test system generate high voltage output?
A:The system uses a modular high voltage resonant technology structure.
5.What is the main application of GIS withstand voltage test equipment?
A:The GIS withstand voltage test system is mainly used for:
- GIS installation acceptance testing
- GIS commissioning tests
- High voltage insulation withstand tests
- Partial discharge detection
- Insulation condition assessment
- Factory type tests and maintenance testing
It is widely applied in high voltage substations, power transmission systems, and large-scale energy projects.
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