Device Functions Numbers
... Blocking Relay (or “Out-of-Step”) - sends a signal to block the operation of switching or tripping protective devices, by bypassing fault signals when certain conditions are met; is often actuated in power transmission and distribution systems during storms ...
... Blocking Relay (or “Out-of-Step”) - sends a signal to block the operation of switching or tripping protective devices, by bypassing fault signals when certain conditions are met; is often actuated in power transmission and distribution systems during storms ...
PL512/PL506 Modular Power Supply System Technical Manual 6. June 2011
... Control Cabinet In the context of this user manual, the control cabinet must fulfill the requirements on fireprotective enclosures according to EN 60950 / IEC 60950 / UL 60950. All devices are intended for operation in control cabinets or in closed areas. The LAN connection and all wire connections ...
... Control Cabinet In the context of this user manual, the control cabinet must fulfill the requirements on fireprotective enclosures according to EN 60950 / IEC 60950 / UL 60950. All devices are intended for operation in control cabinets or in closed areas. The LAN connection and all wire connections ...
Switch
In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another.The mechanism of a switch may be operated directly by a human operator to control a circuit (for example, a light switch or a keyboard button), may be operated by a moving object such as a door-operated switch, or may be operated by some sensing element for pressure, temperature or flow. A relay is a switch that is operated by electricity. Switches are made to handle a wide range of voltages and currents; very large switches may be used to isolate high-voltage circuits in electrical substations.