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Relay Tester/Secondary Circuit Tester

LQHV-109 Professional CT/PT Analyzer | Automatic Transformer Test Kit with Error Curve Analysis

The LQHV-109 CT/PT analyzer performs complete transformer testing with automatic 5%/10% error curves and excitation tests. GB 20840 compliant for laboratory and field applications.


  • US$1.00; Negotiated Price
  • Lead time: 30days

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Product Details

Product Tags

LQHV-109 Advanced CT/PT Test System

Complete transformer verification in one portable unit with automatic error curve generation and instant field reporting

Product Parameters

The main parameters

Itemparameter
Working power supplyAC220V±10% 、50Hz
Device output0 ~ 2500V (Current Max set 20A)
High current output0~1000A
Excitation measurement accuracy≤0.5%(0.3%* reading +0.2%* range)
CT ratio

measurement

The scope of≤5000A/1A(25000A/5A)
precision≤0.5%
PT ratio

measurement

The scope of5~220kV
precision≤0.5%
The work

environment

The temperature-10℃ ~ 40℃
humidity≤90%
The altitude≤1000m
size410mm × 260mm × 340mm
The weight of the≤25kg

Key Features

Dual-Mode Testing

Simultaneous CT & PT analysis without reconfiguration

Smart Curve Generation

Automatic 5%/10% error curves with knee-point detection

Field Reporting

Built-in thermal printer + USB export to Word/Excel

Technical Specifications

ParameterSpecification
Testing RangeCT: 1-5000:1, PT: 1-1000:1
Accuracy±0.2% (ratio), ±0.5% (excitation)
Display7" color LCD with touch interface
Data Storage3000+ test records
ConnectivityUSB 2.0 for data export
Weight≤22kg (field-portable)

Standards Compliance

  • GB 20840.2-2014 (Voltage Transformers)

  • GB 20840.3-2013 (Current Transformers)

  • IEC 61869-1:2007

  • DL/T 726-2013

Testing Process

  1. Connect test leads (auto-recognition)

  2. Select test parameters via touchscreen

  3. Run automated test sequence

  4. View results on-screen or print immediately

  5. Export reports via USB for documentation

Industry Applications

Power Utilities

Protection CT verification in substations

Energy Metering

Accuracy testing for billing transformers

Industrial Plants

Periodic maintenance of critical transformers

Why Choose LQHV-109?

  • ✅ Complete testing solution in one compact unit

  • ✅ Automatic curve generation saves time

  • ✅ Field-ready design with built-in printer

  • ✅ Complies with latest industry standards

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