|
Overload Relay |   |
 +44 (0) 118 9700010 sales@icc-gb.com |
 
|
|
ECR - 3DD
ELECTRONIC OVER & UNDER CURRENT RELAY WITH AMMETER,
DIGITAL DEFINITE TYPE
Introduction
DIGITAL MULTIFUNCTIONCTIONAL PROTECTIVE RELAY.
BASED ON MICROPROCESSOR
(OVER & UNDER CURRENT, PHASE LOSS, PHASE UNBALANCE,
PHASE REVERSE, ALERT,NO VOLT RELEASE,
MANUAL RESET,&TEST)
1) The real currents of 3 phases are displayed the screen(FND) in sequence.
2) Adjustment control knob for overcurrent,undercurrent,delay time &
operating time.
3) High reliability
4) Every trip is identified by LED on the screen.
5) Alert at 95% of overcurrent setting value.
6) DIP switch enable Fail-sefe and phase reverse protection.
Usage
Overload and idle running protection of motor.
Undercurrent protection of load.
(Heater disconnection & Cut-off of belt for belt driven load)
Ordering information
Caution
1 Cable of each phase should pass should pass through the current thansformers
in
the same direction just like diagram.
2 Check the preset values of currents. delay time and operating time
before starting, and check the operting condifition of operating-relay(O.R)
and alert-relay(A.L) then. O-time starts to be counted down
at test
mode after waiting 3 seconds delay