Product Description
The GIS Insulation Test Equipment is designed to evaluate the electrical insulation condition of gas-insulated switchgear during manufacturing, installation, commissioning and maintenance.
A complete GIS insulation testing solution can combine a high-voltage AC source with partial discharge measurement to provide both dielectric withstand verification and insulation diagnostics.
This is especially valuable when customers need to identify potential insulation problems before they develop into operational failures.
Testing Capabilities
- High-voltage AC insulation testing
- AC withstand voltage testing
- Partial discharge measurement
- PD inception voltage detection
- PD extinction voltage detection
- Discharge magnitude measurement
- PRPD pattern analysis
- UHF signal detection
- GIS commissioning testing
- GIS factory testing
- Preventive maintenance testing
What Problems Can the System Help Identify?
Depending on the configuration and diagnostic method, GIS PD testing can help engineers investigate:
- Metallic particle defects
- Protrusion defects
- Floating electrode defects
- Surface discharge
- Insulation abnormalities
- Assembly-related defects
- Abnormal electromagnetic interference
Experimental GIS test platforms commonly use artificial defects such as metal particles, floating potential and protrusions to study different PD characteristics.
FAQ
Does a withstand test alone detect every insulation problem?
No. A withstand test primarily determines whether the insulation can tolerate the specified voltage. PD measurement can provide additional diagnostic information.
What is PRPD?
PRPD stands for Phase-Resolved Partial Discharge. It maps discharge pulses against the phase angle of the applied AC voltage and is widely used for PD pattern analysis.
Can the equipment be used in a laboratory?
Yes. Depending on the configuration, it can be used in GIS manufacturing plants, high-voltage laboratories and field testing environments.
