Product Description
The GIS Partial Discharge and AC Withstand Voltage Test System is a professional high-voltage testing solution designed for insulation withstand testing and partial discharge measurement of Gas Insulated Switchgear (GIS), Gas Insulated Line (GIL) and related high-voltage equipment.
The system combines high-voltage AC testing, partial discharge measurement, high-precision voltage measurement, digital data acquisition and intelligent control into an integrated testing platform.
It is suitable for GIS manufacturers, power utilities, substations, EPC contractors, commissioning companies, high-voltage laboratories and electrical equipment testing centers.
Current GIS testing solutions commonly combine AC withstand testing with PD measurement and are used for both factory testing and on-site commissioning.
Main Testing Functions
- GIS AC withstand voltage test
- GIS partial discharge test
- GIL AC withstand test
- GIS insulation performance verification
- Power-frequency withstand test
- Variable-frequency AC withstand test
- Partial discharge measurement
- PD inception voltage measurement
- PD extinction voltage measurement
- PD pattern analysis
- High-voltage measurement
- Test data recording
- Automatic test control
- Test report generation
Typical Test Objects
- GIS
- GIL
- HGIS
- GIS busbar
- GIS circuit breaker
- GIS disconnector
- GIS grounding switch
- GIS instrument transformer
- GIS insulator
- GIS bushing
- Spacer insulator
- Other HV switchgear components
Application Scenarios
GIS Factory Testing
Used for routine testing and type testing during GIS manufacturing.
Substation Commissioning
Used to verify GIS insulation performance after transportation and installation.
Post-Maintenance Testing
Used after major GIS maintenance, modification or component replacement.
High Voltage Laboratory
Suitable for research, development and certification testing.
Customer Pain Points
Problem 1: GIS passes withstand voltage but still has internal defects.
AC withstand testing and PD measurement provide different information. PD testing can help identify localized insulation defects that may not be revealed by a simple withstand test.
Problem 2: External noise interferes with PD measurement.
For sensitive GIS PD testing, the test system should be designed with low background PD and appropriate shielding, grounding and measurement technology.
Problem 3: Large GIS has high capacitive load.
The test system should be selected according to GIS capacitance, required test voltage, frequency range and test duration.
FAQ
Q: Can this system perform both AC withstand and PD testing?
A: Yes. A combined configuration can perform AC withstand voltage testing and partial discharge measurement.
Q: Can it be used for GIL?
A: Yes. The system can be configured for GIS and GIL according to the test voltage and capacitance requirements.
Q: Is it suitable for on-site testing?
A: Yes. Mobile and variable-frequency configurations can be designed for on-site GIS commissioning.
