LQHV-300 CT/PT Transformer Test Set

Comprehensive Current & Voltage Transformer Analysis

Engineered to meet IEC 60044 and GB1208 standards, the LQHV-300 combines DSP and ARM processing for complete transformer testing - from excitation characteristics to ratio error analysis in a lightweight (<9kg) field-ready package.

Product Parameters

The main parameters

Technical Specifications

• Tests Performed: Excitation, ratio, polarity, winding resistance

• CT Testing: Up to 30kV inflection point detection

• Accuracy: ±0.2% ratio, ±0.5° phase

• Storage: 2000 test records with USB export

• Weight: 8.7kg with carrying case

Advanced Testing Capabilities

1. Complete CT/PT Analysis

• Excitation curves with automatic knee-point detection

• 10% error curve plotting per IEC 60044-6

• Secondary burden measurement (1-25Ω)

2. Automated Parameter Calculation

• ALF (Accuracy Limit Factor)

• FS (Instrument Security Factor)

• Ts (Secondary Time Constant)

• Kr (Remanence Coefficient)

3. Low-Frequency Test Technology

• Eliminates need for heavy test equipment

• Precision measurements at 0.1Hz-100Hz

• ±1% volt-ampere characteristic accuracy

Standards Compliance

Workflow Features

One-Touch Testing

Complete CT tests (resistance, excitation, ratio) with single wiring

Data Management

Generate Word reports via PC software

Portable Design

Lightweight aluminum alloy case with shock protection

Safety & Reliability

• Automatic discharge circuit for CT secondary

• Overvoltage protection up to 35kV

• IP54 protection for field use

Why Choose LQHV-300?

1. Time Savings - 80% faster than manual methods

2. TP Class Ready - Tests transient performance CTs

3. Future-Proof - Firmware upgradable via USB