CommGuard Web

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

Remote commissioning unit

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.

Other features:

  • Robust and light portable unit with integrated storage space for accessories
  • Simple operation using smartphone, tablet or laptop via WLAN
  • Visual and acoustic signalling of system conditions on site
  • Temperature compensation of the fi lling pressure
  • Recording of the SF6 weight
  • Data connection via FTP interface