What is 20kVA PD Gas type Transformer?
The 20kVA Partial Discharge (PD) Gas-Insulated Test Transformer is a specialized device designed for high-voltage testing. It delivers a stable high voltage while exhibiting extremely low partial discharge levels. Featuring a gas-insulated design, it is suitable for precision insulation testing applications.
1. 20kVA (Capacity)
Indicates that the device has a rated capacity of 20 kVA.
Determines the device's voltage and current output capabilities.
Suitable for medium- and high-voltage testing applications.
2. Partial Discharge (PD)
Refers to minute discharge phenomena within insulation.
Key features of this device include: extremely low background partial discharge (typically ≤5 pC).
This ensures no interference with test results, guaranteeing detection accuracy.
3. Gas-Type
Uses gas as the insulating medium (e.g., SF₆ or dry air)
Compared to oil-immersed types:
No oil contamination or risk of leakage
More stable insulation performance
More suitable for partial discharge testing environments
II. Main Applications
Widely used for testing the insulation performance of high-voltage equipment, including:
- Power cables (e.g., XLPE cables)
- Transformers, bushings
- Switchgear, GIS equipment
- Partial discharge testing systems
- Power testing laboratories and inspection agencies
III. Core Advantages
- Ultra-low PD background: Suitable for high-precision PD testing
- Stable and reliable output: Ensures accurate test data
- Cleaner gas insulation: Simple maintenance and high safety
- Suitable for precision testing scenarios: Meets high-standard testing requirements
