SF6 gas test selection scheme

SF6 Gas Relay Inspection

Cycle

Requirements

1) After major maintenance

2) When required by the system

1) Follow manufacturerâ€™s technical specifications

2) Ensure the setting value is in compliance with operating standards and the relay operates correctly.

SF6 Moisture (Dew Point) Test

Cycle

Requirements

1) After major maintenance

2) When necessary

Conduct according to the manufacturer's technical instructions.

SF6 Gas Leak Test

Cycle

Requirements

1) After major maintenance

2) When necessary

Annual leakage rate should not exceed 1% or as specified by the manufacturer.

AC Voltage Withstand Test for Capacitive Voltage Dividers of Coupling Capacitors and Capacitive Voltage Transformers

Cycle	Requirements
When needed	The test voltage should be 75% of the factory test level.

This document outlines the standard procedures and requirements for testing and maintaining SF6 gas-related equipment. These tests are crucial for ensuring the safe and reliable operation of electrical systems. Regular checks help identify potential issues early, reducing the risk of failures and extending the lifespan of the equipment. Always follow the manufacturer's guidelines and local safety regulations when performing these tasks.

Composite Fuse Cutout

Drop Out Fuse Cutout is a kind of outdoor high voltage protection device, lt is connected with the incoming feeder of thedistribution transformer or distribution lines and primarily used to protect transformers or lines against the impact raised by shortcircuit, overload and switching current. The drop-out fuse cutout is composed of insulator support and a fuse carier, staticcontacts that are fxed on two sides of insulator support and moving contact installed on two ends of fuse carrier, The interior ofthe fuse carrier is the extinguishing tube while the exterior is made of phenolic compound paper tube or epoxy glass.

Composite Fuse Cutout,Cut Out Fuse,Fuse Cutouts Medium Voltage,Dropout Fuse Cutout

Jilin Nengxing Electrical Equipment Co. Ltd. , https://www.nengxingelectric.com