This partial discharge-free test transformer is suitable for manufacturers of electrical appliances, cables, motors, transformers, instrument transformers, insulating materials, and related high-voltage components. It can perform partial discharge and power frequency withstand voltage tests on their products.

PD-Free Test Transformer Main Features:

1. No partial discharge epoxy insulation cylinder; partial discharge is typically ≤5pC at rated voltage.

2. Transformer oil is the primary insulating medium, combined with high-quality insulating materials and optimized electric field design, resulting in a high insulation level.

3. The oil-immersed structure provides a uniform electric field and fills air gaps, effectively preventing localized field strength concentration and exhibiting strong resistance to long-term high voltage and impulse voltage.

4. The insulating oil has both insulation and heat dissipation functions, improving the thermal stability and service life of the equipment.

3. Multi-layer electromagnetic shielding (windings, tank, base) design effectively isolates external electromagnetic interference.

4. Combined with no partial discharge supporting components (protective resistors, voltage dividers), a low background noise testing system is constructed, resulting in more accurate data.

4. Low impedance voltage (system impedance ≤5%) and low no-load loss (0.2%–0.35%), exceeding national standards.

5. High single-unit output voltage level (up to 750kV), wide capacity coverage (5kVA–1000kVA), suitable for various testing scenarios.

Widely used for factory, acceptance, and preventative testing of power equipment such as transformers, cables, GIS, instrument transformers, bushings, and insulation materials.

It can be integrated with partial discharge testers, frequency converters, protective resistors, voltage dividers, etc., to form a complete partial discharge-free testing system, meeting various high-voltage testing standards (DL, GB, IEC).

1. Rated Capacity: 50-1200kVA (customizable)

2. Output Voltage: AC50-1200kV, including 50, 100, 150, 200, 250, 300, 500, and 1000kV

3. Turns Ratio Accuracy: <1.5%

4. Partial Discharge Quantity: <5PC

5. Protection Functions: Overcurrent and voltage protection, alarm, automatic zero return

6. Transformer Losses: No-load loss: <4%; Load loss: <9%

Partial Discharge Test Transformer, Oil-immersed Partial Discharge Test Transformer, Oil-immersed Partial Discharge High Voltage Test Device, Partial Discharge Test Transformer