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DEESYS TOTAL PRODUCTS GUIDE
1. Line Check Button
When the switen is pressed, one by one time monitored
circuit number is changed to next circuit number and
ground fault current level of the circuit is displayed.
2. Monitored Circuit Indicator(Digital)
It indicates monitored circuit number in numberals.
3. Earth Leakage Level Indicator
The level of earth leakage or fault current is displayed.
4. Hold Check Switch(Stored memory of fault current level)
Pressing hold check switch, earth leakage level indicator is
displayed fault current of each circuit.
5. Auto./Manual Switch
If the switch is set to auto position, warning lamp(Red LED)
turns on to warn the status of the switch setting.
6. Ground Fault Indicator Lamp
The lamp of leaking circuit turns on when self-test button
of the same leaking circuit is pressed.
7. Ground Fault Sensing Current Setting Switch
Select suitable step of sensing current between 0.1 and 10A
rating as being reqired by characteristics of a line.
※Note : The relay does not operate in case of lock position
8. Operating Time Setting Switch
The switch is used to set required interval of operating time
from 0.05 to 10 seconds.
9. Self-Test Button
If the button of a circuit is pressed, the status of circuit is
simulated to real ground fault and ground fault indicator
lamp turns on to alarm fault status.
10. Sensing Current and Operating Time Reference Table
It is a table of current and time values that can be quoted
for current and time setting as the reference.
11. Reset Button
The button, if pressed, is intialized entire relay function.
12. Power Lamp(Green LED)
It turns on when the power of AC110/220V(or AC 240V)is
regularly supplied.
13. Sensing Current Setting Check Button
The button is used to display ground fault sensing current
setting for checking purpose.
14. Operating Time Setting Check Button
The button is used to display operating time setting of circuit
for checking purpose.
Outline Information
Performance Features
1. Multi-ground fault relay monitors a number of circuits
collectively and carries built-in functional arrangement for
ground leakage level indication and fault current level
indication.
2. It performs monitoring of all circuits consequently by the
command of MCU.
3. In case a ground fault current developed, it induces a
voltage in ZCT which is fed to ground fault current detection
circuit as an input.
4. After Input signal(voltage) is amplified, and then it is
supplied to CPU for processing.
5. CPU converts input by A/D converter for comparison to set
value of sensing current. And, if it is found more exceeding
the setting value, it is performed as followings.
1) Turns on ground fault indicator lamp upon the elapse of
setting interval of operating time.
2) Activates GFR or the circuit.
3) Indicates level of ground fault current on ground fault
current indicator in numeral value.
※Note : If Auto/Manual switch is set to Auto position the
warning lamp(Red LED) turns on, and the fault is repaired, all
operating indication of the circuit will disappear automatically.
MULTI FUNCTION GROUND FAULT
RELAY [GFR]-5C, 10C
6. Identification of indications : When leakages occur in plural
number of circuits on sometime, ground fault indicator lamps
for applicable circuits will light up at once. But ground fault
circuit number indicator and ground fault current level
indicator will display the value of first circuit detected. The
values of other fault circuits can be checked by pressing
circuit test button of respective circuit. If it is the auto reset
mode, fault current has been cleared. Such fault current can
be read out from the memory by pressing hold check button.
7. Reset If Auto/Manual switch is set to manual position after
the ground fault is repaired, press reset button to initialize the
performance or else fault indication will be kept on.
