Silicon Controlled Rectifier Systems

Coastal Power Systems provides our customers in the oil and gas market a comprehensive data base and knowledge base of Ross Hill, IEC, GE, NOV and IPS systems. We are able to support control products, circuit breakers and SCR/DC Slide Cards.

What is an SCR?

Silicon Controlled Rectifiers or SCRs are unidirectional devices (i.e. can conduct current only in one direction) used to convert (Rectify) AC voltage to DC voltage. The DC Voltage is used to control a DC motor(s) and is controlled via a Stack Controller which pulses a signal to the Gates of the SCR to turn them on and off.

  • Replacement SCR Bays and Add-On Bays, this is a quick and easy way to expand the capabilities of your existing system.
  • Replacement PC Cards and other control components
  • Configured Circuit Breakers and Breaker Devices for specific SCR Systems, and Stand Alone/Add on SCR Drives for Mud Pumps, Top Drives, Rotary Tables and Drawworks.
  • Retrofit and Retrofill options for obsolete Circuit Breakers such as GE Powerbreak I, Merlin Gerin Masterpact M and MP, Power Break II, ITE HP and CP Frames both fused and non-fused.
  • Incorporate communication from existing DC slide card to communicate with all Circuit Breaker Devices.

*Note: A DC Slide card is a component of the Ross Hill SCR System, its function is to provide the Undervoltage signal to the UV device in a breaker.

Contact our SCR and DC Slide Card experts today to discuss options and available bays and components today.