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LQ-901 Transformer Calibration Instrument - Field CT/PT Testing with 0.02% Accuracy

The LQ-901 performs field calibration of CTs/PTs with 0.02% accuracy. Features WINCE touchscreen interface, 1%-200% ratio testing, and automatic error calculation per IEC 61869.


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

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Product Details

Product Tags

LQ-901 Integrated Transformer Calibration Instrument

The LQ-901 Field Calibration Instrument revolutionizes substation testing with its all-in-one CT/PT verification capability. Combining 0.02% reference-grade accuracy with rugged portability, it eliminates the need for multiple standard transformers and load boxes during field calibrations.

Product Parameter

(1)

CT ratio range5A/5A~25000A/5A (5A/1A~5000A/1A) turn ratio error ± 0.2%
Error measurement range5A/5A~5000A/5A(5A/1A~5000A/1A)
Accuracy range of the tested current transformer1.0, 0.5, 0.5S, 0.2, and 0.2S
CT error accuracy0.02 level

(2)

PT ratio rangeFull range measurement (electromagnetic type) ± 0.2%
Error measurement rangePrimary voltage:3-220kV/(non-standard primary voltage is also acceptable) Secondary voltage: 3kV/100V、3kV//100V/;6kV/100V、6kV//100V/;6.3kV/100V、 6.3kV//100v/;10kV/100V、10kV//100V/;10.5kV/100V、10.5kV//100V/;13.8kV/100V、13.8kV//100V/;15kV/100V、15kV//100v/;15.75kV/100V 、15.75kV//100V/;18kV/100V、18kV//100V/ ;20kV/100v、 20kV//100v/;35kV/100V、35kV//100V/;66kV//100v/; 110kV//100V/;220kV//100V/
Power factor0.0-1.0
PT error accuracy0.05 level
DC resistance0.0-0.1 Ω ± 3%
0.1-50Ω ±1%
Environmental temperature0-40℃
Power consumption of the whole machine30W (static) and 150W (working)
Environmental temperature0-40℃
Environmental humidity<85% at 25℃
Whole machine weight6.0Kg
Whole machine volume472mm × 355mm × 168mm

Key Features

1. Advanced Measurement Capabilities

  • Wide ratio testing: 1%-200% for CTs (including S-class)

  • Dual-mode operation:

    • Standard point verification (20%-120%)

    • Any-point testing (1%-200%)

  • Multi-parameter analysis: Ratio error, phase angle, polarity, burden

2. Industrial Design

  • Rugged construction: IP52 rated for substation use

  • Ultra-portable: 5.8kg (472×355×168mm)

  • Safety certified: CAT IV 600V, IEC 61010

Technical Specifications

  • CT Testing:

    • Ratio: 1%-200%

    • Accuracy: ±0.02% (ratio), ±0.5' (phase)

  • PT Testing:

    • Ratio: 10%-150%

    • Accuracy: ±0.03% (ratio), ±1' (phase)

  • Data Storage: 500 tests with timestamps

Compliance & Certifications

  • ISO 9001:2015 Quality Management

  • GB/T 19001-2016 (QMS)

  • IEC 61869-1/2 for instrument transformers

  • CMC China Metrology Certification

Why Choose LQ-901?

  1. Time Savings: 70% faster than traditional methods

  2. Cost Effective: Replaces $50k+ of reference equipment

  3. Future-Proof: Software-upgradable for new standards

Includes 3-year calibration warranty and on-site training package.

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