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HYEA Water-Cooled Generator Stator Insulation Resistance Tester

Designed for Water-Cooled Generator Stator Windings, this tester features automatic compensation for water polarization potential, effectively minimizing measurement interference from the cooling-water circuit. It measures phase-to-ground and phase-to-phase insulation resistance and automatically calculates DAR (R60s/R15s) and PI (R10min/R1min) to identify moisture, aging, contamination, and other insulation issues.
Ideal for FAT, SAT, routine maintenance, and preventive testing, it provides a reliable assessment of stator winding insulation condition before high-voltage withstand testing and generator commissioning.
  • Detailed Description

Key Features

  1. Easy Operation & Automatic Measurement — Simple connection, automatic testing, and built-in data storage for efficient field measurements.
  2. Dual-Display Measurement — Digital readings combined with an analog bar graph provide clear, intuitive monitoring of insulation resistance trends.
  3. Wide Measurement Range & High Test Voltage — Measures insulation resistance from 0.1 MΩ to 200 GΩ, with selectable test voltage up to 5.0 kV and short-circuit current of ≥25 mA.
  4. Flexible AC Power Supply — Supports a wide AC input voltage range, making the tester suitable for on-site power equipment testing under different operating conditions.
  5. Reliable Performance in Harsh Environments — Stable operation from −10°C to +40°C, providing dependable insulation testing performance across a wide range of field environments.

Technical Specifications & Operating Conditions

Model

HYEA

Accuracy

±(5% + 5 digits)

Measuring Range

0.1 MΩ ~ 200 GΩ

Display Mode

Dual display of digital readout and analog progress bar

Temperature Measurement

-25 ℃ ~ 125 ℃

Test Voltage

2.5 kV,5.0 kV

Short-circuit Current

≥25 mA

Measuring Time

1~ 10 min

Power Supply

180 ~ 270 VAC, 50Hz/60 Hz ±1%

Ambient Temperature

-10 ~ 40 ℃

Relative Humidity (RH)

20 ~ 80%

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Address:  Baoding, Hebei Province, China

Tel/WhatsApp: +86 13331227795
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E-mail: sales18@hbhytech.com
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