Technical Specifications & Product Description

Model: LQTT Series High-Voltage Test Transformer
Rated Output: 250 kV / 10 kVA
Phase: Single
Frequency: 60 Hz

Key Features

• Ultra-Low Partial Discharge: <5 pC at 100% rated voltage (compliant with IEC 60270)

• Robust Duty Cycle:

• 1 hour ON / 1 hour OFF at 100% rated voltage & current

• Continuous operation at 80% rated voltage & current

• Precision Waveform: ≤5% total harmonic distortion (THD)

• Optimized Cooling: ONAN (Oil-Natural Air-Natural)

• Compact Design: Cylindrical construction for efficient field deployment

Technical Parameters

Engineering Advantages

1. Partial Discharge Performance:
   Industry-leading <5 pC sensitivity ensures reliable detection of insulation defects in high-voltage systems (e.g., cables, bushings, GIS).

2. Thermal Management:
   ONAN cooling + optimized thermal design enables sustained operation within safe temperature margins (IEC 60076 standards).

3. Durability:
   Cylinder-type construction with reinforced insulation withstands rigorous test environments.

4. Precision Engineering:
   ≤5% waveform distortion guarantees accuracy in dielectric withstand tests, partial discharge measurements, and power frequency tests.

Target Applications

• Dielectric withstand testing (IEC 60270 / IEEE 4)

• Partial discharge calibration & diagnostics

• Power transformer & cable commissioning

• Insulation coordination studies

• High-voltage lab R&D

Why This Transformer?

► Reliability: Validated thermal performance at 80% continuous load
► Safety: Built-in impedance protection against short-circuit stresses
► Compliance: Meets global standards for HV test equipment
► Portability: Compact footprint vs. conventional 250kV test systems