ripple control

8 examples (0.02 sec)
  • Early implementations of ripple control occurred during World War II in various parts of the world using a system that communicates over the electrical distribution system.
  • Ripple injection equipment located within each local distribution network signals to ripple control receivers at the customer's premises.
  • Ripple control is the most common form of load control, and is used in many countries around the world, including Australia, New Zealand, the United Kingdom, Germany, the Netherlands, and South Africa.
  • The switch and the two-tariff electricity meter are remotely controlled, using either ripple control through the powerline or the European radio teleswitching system based on longwave radio signals.
  • Ripple control receivers are assigned to one of several ripple channels to allow the network company to only turn off supply on part of the network, and to allow staged restoration of supply to reduce the impact of a surge in demand when power is restored to water heaters after a period of time off.
  • Since the 1950s, New Zealand has had a system of load management based on ripple control, allowing the electricity supply for domestic and commercial water storage heaters to be switched off and on, as well as allowing remote control of nightstore heaters and street lights.
  • This can be achieved by direct intervention of the utility in real time, by the use of frequency sensitive relays triggering circuit breakers (ripple control), by time clocks, or by using special tariffs to influence consumer behavior.
  • Ripple control involves superimposing a higher-frequency signal (usually between 100 and 1600 Hz) onto the standard 50-60 Hz of the main power signal.