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Overload Relay |   |
 +44 (0) 118 9700010 sales@icc-gb.com |
 
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DIGITAL MULTI-FUNCTIONAL PROTECTIVE RELAY
WITH SHOTR CIRCUIT PROTECTION AND AMMETER
EOCR-3DS
Introduction
BASED ON MCU(Micro Controller Unit) AND ADOPTED
ASIC (Application Specific intergrated cicuit) CHIP.
MULTI FUNCTIONAL PROTECTION - OVERCURRENT,
PHASE REVERSAL, PHASE LOSS, PHASE UNBALANCE,
LOCKED ROTOR, SHORT CIRCUIT.
1) The 3 phase currents are displayed in sequence.
2) Possible setting with poten tionmeter.
(overcurrent, delay time, operating time, short)
3) Selectable functions and CT ratios with DIP switches.
(phase reversal, phase loss, time-current characteristic,
short current)
Dip switch selection guide
How to set up
1. CURRENT :
Definite Time(Function
SW#3 OFF) - Set the rated motor
current 110~115% of running current after motor
run-up
Inverse Time(Function
SW#3 ON) - 100% of rated motor
current or actual load current is recommended.
2. D-TIME : Set the expected run-up time of motor by
"D-TIME" potentiometer.
3. O-TIME :
Definite-Time - Set the
desired trip delay time.
Inverse Time - Set the
trip delay time according to
Time-Current characteristics
4. SHORT:
Set the multiples of overcurrent setting to be protected.
When the short potentiometer adjust, the display of
short
is indicated the multiple of overcurrent setting.
Time-current characteristics
Time
Current(Multiples
of Setting)
!!! These
curves are applied to more then 110% of current setting.