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1.Multi-ground fault relay(GFR) is multi-functional and is able to detect
ground faults monitoring circuit and is displayed leakage in the circuit
and fault current when earthing.
2.It is installed 8 bit MCU with A/D conventer and is configured to
perform advanced functions for high reliability.
3.It is a collective device that is intergrated many ground fault detector
of conventional single unit.
4.It is capable to detect from minor grounding fault current(0.1A) to
medium level fault current (10A)
5.It is configured to have operating time taps for adjustment of time
setting and is easy for protection coordination of distribution cirruit. |
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6.As wide display and indicators, it is able to enhance checking up and performance.
7.Watch dog function assures ? free operation.
8.The memory stores the last record of ground fault current of each circuit to facilitate following up in the event
of accidents.
9.The ABS casing newly adopted offers improved durabillty and extend life of product.
10.All GFRs are tested EMC to ensures and high frequency & surge do not interfere design performance of
GFR. |
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| Items |
DGF M10
(For 10Circuits) |
DGF-M05(For 5 Circuits) |
|
Testing Institute |
Korea Electric Research Institute |
|
Usage |
for Protection against minor and Major Ground Leakage Faults |
| Control Power Voltage |
AC110/220V Operable in common or AC 240V |
| Frequency |
50/60 Hz Operable in Common |
| Operating Current Setting |
9Steps, of 0.1, 0.3, 0.5, 1, 2, 3, 5, 10 and Lock
T: 70% TO 100% of Current Setting |
| Operating Time Setting |
9Steps, of 0.05, 0.1, 0.3, 0.5, 1, 2, 3, 5, 10sec
T: ±10% TO 0.05 T=0.1±25ms |
Ground Fault
Detection Circuit |
10 Circuits |
5 Circuits |
| Operating Status indicator |
LED(Red) and Digital Display one for each Circuit |
| Resetting |
Autu/Manual |
| Ambient Temperature |
-10℃~+50℃ |
Vibration
Resistance |
Energized : Full vibration width 4mm, 1000rpm, 10min
Deenergized : Full vibration width 4mm, 1000rpm, 60min |
| Impact Resistance |
Impact Strenght of 300㎨ applied to 3 axial directions of right & Left, up & down, and behind & Forward |
Common Frequency
Dielecric
Resistance |
Opn Cirr-Casing : AC 2000V
Opn Cir-Opn Cir : AC 2000V
Test Cir-Terminals : AC 1000V |
┓
┣ 60Hz, 1MIN
┛ |
Insulating
Resistance |
Opn Cirr-Casing : 10㏁ or more
Opn Cir-Opn Cir : 10㏁ or more
Test Cir-Terminals : 10㏁ or more |
┓
┣ BY DC 500V MEGGER
┛ |
| Power consumption |
7VA |
5VA |
|
Contact Capacity |
AC 125V 5A / DC 30V 5A |
|
Weight |
2.0Kg |
1.7Kg |
|
ZCT(Input) |
ZCT Rating 200mA/100mA (ZR, ZS, ZB, type 사용) | | | |
1Multi Function Ground Fault Relay DGF-M10/M05T
1contents: 1.Multi-ground fault relay(GFR) is multi-functional and
1is able to detect ground faults monitoring circuit and is displayed 1leakage in the circuit and fault current when earthing.
12.It is installed 8 bit MCU with A/D ...
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