Single (RCCS1) and Triple (RCCS3) reactive Current Controlled Switch0 pages

Cognito Quam Industrial Electronics, Control, Robotics and Automation Single (RCCS1) and Triple (RCCS3) Reactive Current Controlled Switch The new (vl.1) RCCSx switches measure the reactive current in single- and three-phase line Systems and activate one (RCCS1) or three (RCCS3) 8 A solid state switches to connect compensating capacitors in and out of the line system. The current is detected with a current transformer (CT) in one of the lines and the sampling period is selectable from 4 to 32 seconds. The RCCSx response makes it particularly suitable for fast dynamic power factor (PF) compensation of frequently-started, low-duty or variable loads such as lifts, conveyors, compressors, pumps and fans. Current transformer Control power supply fuse Switch On LED. Flashes when power circuit is overheated, typically due to bypass relay failure. (CT) input terminals Line terminals Capacitive PF LED indicates the presence of capacitive load current or an inversely connected PT Easily replaceable switch bypass relay Capacitor fuses Power On LED Capacitor bleed resistors Activation current potentiometer Capacitor terminals Operation DIP switch sets test and timing parameters The RCCS1 v1.1 single switch Each switch is activated when the detected reactive current is above the respective set value as determined at the activation potentiometer. Switch activation/deactivation happens at every sampling instant as set at the DIP switch. The RCCSx is a fully protected, digitally-controlled unit, simple to install and adaptable to all power factor capacitor compensation applications. The only other parts required to build a complete power factor correction system are the current transformer and the compensating capacitor(s). r.2 Feb12 Copyright © 2010-2012. Cognito Quam Ltd, PO Box 67212, Melissia, Athens 15102, Greece. Tel/fax: +30.210.8049475 - http://www.cognitoquam.gr 1