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High-Voltage Insulation Resistance Tester | Megohmmeter

The HY Series Insulation Resistance Tester (Megohmmeter) is designed to assess the insulation condition of transformers, generators, motors, cables, switchgear and other high-voltage electrical equipment.
It measures Insulation Resistance (IR), Dielectric Absorption Ratio (DAR), and Polarization Index (PI) to detect insulation moisture, aging, contamination and damage, supporting preventive maintenance and safe equipment operation.
With test voltages from 250 V to 10 kV, built-in lithium battery and automatic discharge, it is suitable for both laboratory and on-site testing.

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Detailed Description

Key Features

250 V–10 kV multiple test voltage options
Automatic IR, DAR and PI measurement
Built-in lithium battery for portable field testing
Automatic discharge after testing
Protection against short circuit, overload, overcurrent and undervoltage
Audible and visual safety alarms
Stable operation from -10°C to +40°C
Suitable for altitudes up to 3,000 m
CE certified, compliant with IEC 61010

Technical Specifications

Model	Short-Circuit Current	Output Voltage
HY2533	3 mA	250 V, 500 V
HY2553	5 mA	1,000 V, 2,500 V
HY5033	3 mA	500 V, 1,000 V
HY5053	5 mA	2,500 V, 5,000 V
HY1153	5 mA	1,000 V, 2,500 V, 5,000 V, 10,000 V

Applications

Suitable for insulation testing and preventive maintenance of:

Transformers
Generators
Motors
Power Cables
Switchgear
High-Voltage Electrical Equipment

Widely used for factory inspection, commissioning, handover acceptance, maintenance, overhaul and preventive testing in substations, power plants and industrial power systems.

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Address: Baoding, Hebei Province, China

Tel/WhatsApp: +86 13331227795
+86 18131253868

E-mail: sales18@hbhytech.com
sales19@hbhytech.com