SCA – Signal Conditioner Intelligent High-speed Relay
High speed auxiliary relays are used in substations and high voltage and industrial plants to multiply alarm or tripping contacts with minimum delay. The 4-output contacts of the SCA Intelligent High-Speed Relayfulfils this function (two versions of the relay are available) with pick-up times below 2.5ms:
- Simple implementation: one voltage input to control the 4 output contacts;
- Double implementation: two independent inputs, each control 2 output contacts.
Treetech’s has introducedadditional innovations to the patent pending SCA, including:
- Intelligent output that allows up to 64 contacts to be digitized through the SC Digital Transducer making information available through DNP3.0 and Modbus RTU protocols;
- Network interconnection of intelligent outputs through pluggable quick connection bus located in the base of the equipment;
- Common point entry connectionvia pluggable quick connection bus located in the base of the equipment;
- Universal activation inputs for voltages between 110 and 250 Vdc;
- Indication LEDs for activation of inputs and intelligent output under operation;
- Reversible output contacts with arc suppression for longer working life;
- Galvanic insulation between inputs, output relays and intelligent output.