GCU -DG3 User's Guide
EGCON Co,. Ltd
4 Page
1. Outline
GCU-DG3 is a Diesel Engine Generator Controller that contains digital instrumentation function and digital
protective relay. Especially, this is easy and convenient to use that it is optimized for national
environments.
2. Product Features
2.1. Watt-hour meter [kWh]
2.2. Function of Digital protective relay (OVR, OCR, UVR, OFR, UFR).
2.3. Input of RPM, OPG, WTG, DCV, ETM gauges and OTG
2.4. Interface functions of commercial electricity and non-electricity by automatic operating signals
2.5. Functions of remote control and observation through RS485 MODBUS-RTU-typed communication
2.6. Double protection of starter motor by detection of engine rotating speed and oil pressure switch
2.7. Input of condition printing function
2.8. Input of 18 Fault History functions
2.9. Input of overspeed and overvoltage testing switch
2.10. Preheating function of engine preheating plug for small engine
2.11. Input of alert sounds
2.12. pause Solenoid burn preventive designal
2.13. Function of administrator password
2.14. Function of change from interface capacity for starter and pauseper(15A), ACB input, and block to
high capacity
2.15. Input of generator pauseper function when there perceives not MPU signal in normal operation
3. Capacity and function
3.1. Control power supply: 8~35Vdc, Consumption voltage: below 5W on standby, 360W on maximum
3.2. Speed perception: MPU detection 0~7,000Hz, 3~20Vac
3.3. Detection of commercial power: Max. 500Vac, 3 Phase 4 Wire 380/220Vac or single Phase 220Vac
3.4. Automatic operation signal: commercial power or dry contact
3.5. Fault detection:10, Alert:4
3.6. Operating electricity instrumentation and scope accuracy: 3 Phase 4 Wire
NO.
Instrumentation item
Range
Accuracy
1
L-L (Line to line Voltage)
30 ~ 500Vac
± 1%
2
L-N (Phase to phase Voltage)
10 ~ 300Vac
± 1%
3
A (Line current)
0 ~ 6.5A
± 1%
4
Hz (Frequency)
45 ~ 65Hz
± 1%
5
PF (Power factor)
-0.3 ~ +0.3
± 1%
6
kW (Active power)
0 ~ 99999kW
± 1%
7
kVAR (Reactive power)
0 ~ 99999kVAR
± 1%
8
kVA (Rated apparent power)
0 ~ 99999kVA
± 1%
9
kWh (Quantity of active power)
0 ~ 99999kWh
± 1%
10
kVARh (Quantity of Reactive power)
0 ~ 99999kVARh
± 1%
