B190R11V1

For the safe filling and refilling of porcelain insulators in outdoor switchgear

Finest hairline cracks may occur on porcelain insulators for circuit breakers or other SF₆ insulated electrical equipment such as measuring or current transformers during transportation or as a result of material stress. Filling the gas compartment with SF₆ may lead to dangerous bursting of the insulator.

Thanks to the “CommGuard Web“ filling unit it is now possible, for the very first time, to fill porcelain insulators in a controlled and safe way from a distance of up to 100 m. This unit enables the operator to control and monitor the fully automated filling process using a smartphone, tablet or laptop from outside the danger zone.

The device is equipped with an external temperature sensor and fills the gas compartment to a constant gas density. The temperature-compensated filling pressure is thus achieved with a precision of ± 50 mbar. Furthermore, there is the option of connecting DILO weighing scales to the unit and the gas quantity filled in can be precisely recorded (e.g. K091R67, 3-001-R021 ± 20 g).

Different types of gas compartments can be added and recalled in the data base. Data recording completes the functions of the compact unit and sets new quality standards.