DEEsys DGF-M10 User Manual

134
DEESYS TOTAL PRODUCTS GUIDE
MULTI FUNCTION GROUND FAULT
RELAY [GFR]-5C, 10C
Features
Rating & Specification
1. Multi-ground fault relay(GFR) is multi-functional and is able to detect multiple ground faults of 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 relability.
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 is easy for protection coordination of distribution circuit
6. As wide display and indicators, it is able to enhance checking up and performance.
7. Watch dog function assures error - 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 durability and extended life of product.
10. All GFRs are tested EMC to ensures and high frequency & surge do not interfere design performance of GFR.
DGF- M10
DGF-M10(For 10 Circuits)
for protection against minor and major ground Leakage faults
AC 110/220V Operrable in Common or AC 240V
50/60㎐ Operable in common
9steps, of 0.1, 0.3, 0.5, 1, 2, 3, 5, 10 and Lock T:70% to 100% of current setting
9steps, of 0.05, 0.1, 0.3, 0.5, 1, 2, 3, 5, 10sec T:±10% for 0.05 T=0.1±25㎳
10Circuits
LED (Red) and Digtal Display one for each Circuit
Auto/Manual
-10℃~+50℃
Energized:Full vibration width 4㎜, 1000rpm, 10min
Deenergized:Full vibration width 4㎜, 1000rpm, 10min
Impact strength of 300㎨ applied to 3 axial directions of right & left. up & down, and behind & forward
Opn Cirr-Casing : AC 2000V
Opn Cir-OOpn Cir : AC 2000V
Test Cir-Terminals : AC 1000V
60㎐, 1min
Opn cir-Casing 10㏁ or more
Pon cir-Opn Cir : 10㏁ or more
Test Cir-Terminals : 10㏁ or more
7VA
AC 125V 5A/DC 30V 5A
2.0㎏
ZCT Rating 200㎃/100㎷ (ZR, ZS, ZB type)
Items
Usage
Control Power Voltage
Frequency
Operating current setting
Operating Time setting
Ground Fault Detection Circuit
Operating status Indicator
Resetting
Ambient Temperature
Vibration Resistance
Impact Resistance
Common frequency dielecric
resistance
Insulating Resistance
Power Consumption
Contact Capacity
Weight
ZCT(input)
DGF-M05(For 5 Circuits)
5Circuits
by DC 500V megger
5VA
1.7㎏

DEEsys DGF-M10 Specifications

General

Contact Form	SPDT
Contact Rating	10A @ 250VAC, 10A @ 30VDC
Coil Voltage	5VDC, 12VDC, 24VDC
Operate Time	10 ms (max)
Release Time	5ms max

Summary

Product Features

Rating and Specification

Front Plate Description

Line Check Button

Button for checking line status and advancing circuits.

Monitored Circuit Indicator

Digital display showing the currently monitored circuit number.

Earth Leakage Level Indicator

Indicator showing the level of earth leakage or fault current.

Hold Check

Switch to store and recall the last fault current level.

Auto/Check Switch

Switch for automatic or manual operation and checking modes.

Ground Fault Indicator

LED indicator for each circuit to show a ground fault condition.

Sensing Current Setting

Switch to select the fault sensing current threshold.

Operating Time Setting

Switch to set the time delay for fault tripping.

Self-Test Button

Button to perform a self-test of the circuit's fault detection.

Sensing Current and Time Reference

Reference table for setting current and operating time values.

Reset Button

Button to reset the relay's functions to initial state.

Power Lamp

Green LED indicating that the power supply is on.

Sensing Current Check Button

Button to verify the set ground fault sensing current.

Operating Time Check Button

Button to verify the set operating time for each circuit.

Performance Features

Multi-Circuit Monitoring

Monitors multiple circuits for ground faults, indicating leakage and fault current.

MCU-Based Monitoring

Performs circuit monitoring using an MCU and A/D converter for reliability.

Ground Fault Detection

Detects ground faults via ZCT input, amplified and processed by CPU.

CPU Fault Processing

CPU compares A/D converted input to settings, triggering fault indication.

Fault Indication and Operation

Activates fault lamps and trips the circuit after the set operating time.

Multiple Fault Identification

Identifies multiple circuit faults, displaying first detected, with recall via hold check.

Manual Reset Procedure

Manual reset required after fault repair when in manual mode.

Outline Information

Line Check Button

Button to cycle through monitored circuits and view fault levels.

Monitored Circuit Indicator

Digital display showing the current circuit number being monitored.

Earth Leakage Level Indicator

Displays the detected earth leakage or fault current level numerically.

Hold Check Switch

Stores and recalls the last recorded fault current level for a circuit.

Auto/Manual Switch

Selects automatic or manual operation modes, with a warning lamp for auto mode.

Ground Fault Indicator Lamp

Lamp illuminates for a leaking circuit when its self-test button is pressed.

Ground Fault Sensing Current Setting

Selects sensing current threshold (0.1A to 10A) based on line characteristics.

Operating Time Setting Switch

Sets the operating time interval for fault detection (0.05 to 10 seconds).

Self-Test Button

Simulates a ground fault to test circuit status and indicator lamps.

Sensing Current/Time Reference Table

Table providing reference values for current and time settings.

Reset Button

Resets the entire relay function to its initial state.

Power Lamp

Green LED indicating that the AC power supply is active.

Sensing Current Setting Check

Button to display and verify the set ground fault sensing current.

Operating Time Setting Check

Button to display and verify the set operating time for a circuit.

Installation Checks

Pre-Installation Checks

Verify power connections, indicators, and settings before installation.

Installation Checks

Ensure proper mounting, ZCT installation, and terminal connections.

Technical Diagrams and Terminals

Internal Block Diagram

Diagram illustrating the internal functional blocks of the GFR relay.

External Contacts Wiring

Diagram showing wiring for trip contacts and auxiliary outputs.

Terminal Arrangements

Diagrams and legends for terminal connections on various GFR models.