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Circuit Breaker

Never gets a faulty breaker in the time of need

CB Watch 3

HV Circuit Breaker Monitoring Solution-CB Watch

All Asset Managers know how critical their power transformers are and understand the risks and consequences of any failure. They are now focusing on the fact that high voltage circuit breakers are often just as critical. When a transformer problem is detected, protection relays and circuit breakers are relied upon to isolate it from the grid and a breaker’s “failure to operate” is not a palatable option. With worldwide scrutiny on SF6 gas usage, increased environmental reporting requirements and even possible penalties, precise early detection of small gas leaks is essential. The latest generation of EMC resistant digital gas sensors is used to provide leak detection down to 0.1% per year and to forecast refilling needs prior to reaching threshold levels and affecting operation.

Key Benefits

  • Modern modular solution that fills diverse needs with the same platform
  • Retrofittable on site to most HV circuit breaker types/brands
  • Delivers reduced and optimized operating maintenance costs
  • Enables health/condition based asset replacement strategy
  • Helps reduce costly SF6 gas losses into the environment
  • Seamless communication with digital systems and through web server HMI

Modularity to match your needs

All circuit breakers do not operate as often or are not as critical, so Asset Managers often want different levels of monitoring within their CB fleet. The CB Watch 3’s modular design coupled with the small size of the modules and the bus architecture of the product allows customers to have different specifications for different types of breakers while keeping the same equipment supplier, the same hardware platform and the same software interface.

SF6 Gas Monitoring
  • Measures pressure and temperature of SF6 gas (or gas mixture) and calculates density
  • Detects gas leaks and gives advance warning before reaching critical threshold levels
  • Exposes gas liquefaction risk at low temperature

Refinements

  • Data for the last 50 operations is kept in memory to enable comparison

  • As the CB operating time varies (due to increased friction at low temperature), these timing variations can be compensated for in order to avoid false alarms.z

SF6 Gas Monitoring

Increase your Circuit Breaker Life

‘Suitable for your entire fleet of breakers: large and small, most critical to your grid, with a prior history of issues or just simply ageing’

Discover More

Circuit

Breaker

EPESOL offers the most advanced SF6 and capacitive high voltage circuit breakers. With a reputation for high reliability and long life in all climates and all parts of the world, and with more than 20,000 units

P&C

Panel

EPESOL holds a unique legacy in the manufacturing of PROTECTION AND CONTROL panels with decades of hands-on experience. EPESOL has a state-of-the-art facility of relay and control panel design

Mechanical

Service

Along with DGA and bushing failures, there are also several other failures such as the main tank accounting for 30%, Tap changer accounting for 35%, and the Cooling system accounting

Electrical

Services

Bushing failure is one of the leading cause of transformer failure, accounting for 15% of the total failures. Faulty insulation is the principal cause of bushing failure. Humidity and oil