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.

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.
- IEC 60060-1 — High-voltage test techniques - General definitions and test requirements
- IEC 60060-2 — High-voltage test techniques - Measuring systems
- IEC 60270 — Partial discharge measurements
- GB/T 16927.1 — High-voltage test techniques
- GB 7354 — Partial discharge measurement
Application Scenarios
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Get a QuoteDetailed 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 resolution | 0.1% |
|---|---|
| Temperature controller - thermocouple resolution | 1°C |
| Measurement accuracy | 0.3% |
| Alarm | Upper/lower limit alarm |
| Heating input supply | 380V |
| Heating power | 30kW |
| Water temperature | 45°C±5K above test environment |
| Immersion time (below 42kV) | t≥10min |
| Immersion time (42kV and above) | t≥30min |
| Water level | 10-20cm above arrester highest point |
Frequently Asked Questions
What is the GD-MF Arrester Seal-Check Heating Water Bath used for?
How is the seal test carried out?
How do I get a quotation?
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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