High Voltage Test Equipment

GD-MF Arrester Seal-Check Heating Water Bath

Heating water bath for seal testing of surge arresters, with a digital temperature controller, 30kW heating and hot-water immersion method per the applicable standard.

GD-MF Arrester Seal-Check Heating Water Bath

Overview

Heating water bath for seal testing of surge arresters, with a digital temperature controller, 30kW heating and hot-water immersion method per the applicable standard.

Standards & Compliance

Benchmark standards for this equipment category

Systems in this category are commonly specified against these standards, linked to the issuing body. Final configuration and acceptance criteria follow the standard and edition you nominate.

Application Scenarios

Surge arrester seal testingHot-water immersion seal testArrester quality acceptance testing

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Detailed Description

Overview: the GD-MF arrester seal-check heating water bath comprises a water tank, a heating device, a digital temperature controller and a temperature sensor. The tank side wall has insulation, a water inlet and a water outlet; the heater raises the water temperature to the required level; and the temperature sensor connects to the digital controller.

Safety and mobility: the tank side wall has a heat-insulation layer to prevent scalding during heating, and the whole assembly is integrated into one box with castors at the four corners for easy movement.

Temperature control: the digital temperature controller supports RTD signals at 0.1% resolution and thermocouple signals at 1°C resolution, with 0.3% measurement accuracy and upper/lower limit alarm. The heating device runs on 380V at 30kW.

Test requirements: the water must be clean and the water temperature 45°C±5K above the environment temperature. The arrester is immersed horizontally with the water surface 10-20cm above its highest point. Immersion time is at least 10 minutes below 42kV and at least 30 minutes at 42kV and above.

Technical Specifications

Temperature controller - RTD resolution0.1%
Temperature controller - thermocouple resolution1°C
Measurement accuracy0.3%
AlarmUpper/lower limit alarm
Heating input supply380V
Heating power30kW
Water temperature45°C±5K above test environment
Immersion time (below 42kV)t≥10min
Immersion time (42kV and above)t≥30min
Water level10-20cm above arrester highest point

Frequently Asked Questions

What is the GD-MF Arrester Seal-Check Heating Water Bath used for?
It is used to test the sealing of surge arresters. It mainly comprises a water tank, a heating device, a digital temperature controller and a temperature sensor, with the tank fitted with insulation, water inlet and outlet.
How is the seal test carried out?
The hot-water immersion method is used. The test water must be clean, and the water temperature is 45°C±5K above the test environment temperature. The test object must be a new, clean, fully assembled arrester or arrester element. The immersion time is at least 10 minutes for arresters rated below 42kV and at least 30 minutes for arresters rated 42kV and above.
How do I get a quotation?
Email your arrester ratings and test requirements to bowen@harchin.com. The device is manufactured in our Nanjing facility and quoted directly from the factory based on your configuration.

Reviewed by the Application Engineering Team at Nanjing Gaodian Electric Power Equipment

Specifications are taken from the manufacturer’s technical documentation. Final configuration and acceptance criteria follow the standard and edition you nominate — tell us your test list and we will confirm the ratings.

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