Table of Contents
Related Manuals for Ground Fault Systems DGF5
Summary of Contents for Ground Fault Systems DGF5
- Page 1 DGF5 Digital Ground Fault Protection reference manual Ground Fault Systems B.V. www.groundfaultsystems.com Rigtersbleek-Aalten 4B15 info@groundfaultsystems.com 7521 RB Enschede Tel: +31 53 4318628 The Netherlands CofC: 55400914...
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Page 2: Table Of Contents
External button Control Voltage System power Wires Relay contacts Mechanical properties (installed) Environment APPLICABLE STANDARDS TABLES AND FIGURES Figure 1 - Typical Field Connection Figure 2 - Dimensions DGF5 B.V. DGF75 reference manual, rev. 1.0, June 12, 2023 Ground Fault Systems... -
Page 3: General Description
CS. The DGF5 houses a non-isolated universal power supply of 24 – 48 V AC or DC and is equipped with form ‘C’ (3-wire), changeover contacts. The relay operating mode is Pulsed Output Auto Reset. The Ground Fault Current Trip level is factory set at 500 mA, the Trip Delay Time is factory set at 500 ms. -
Page 4: Functionality
Level or after three seconds. 2.5 Test The DGF5 can be connected to a remote momentary ,voltage free, N.O. button for a relay test (see section 6.2), using the T1 (grey) and T2 (blue) wire leads. A simulated current of 600 mA (1,2 times the Trip Current) replaces the measured current. -
Page 5: Control Voltage
OLTAGE The DGF5 has a universal power supply input, accepting nominal voltages between 24 and 48 V AC or DC with a -45% / +10% tolerance for AC and -20% / + 10% for DC. The total range of accepted voltages is therefore 15,6 to 52,8 V AC and 19,2 to 52,8 V DC. -
Page 6: Connections And Precautions
Figure 1 for typical field connections. Place the DGF5 in a clean dry enclosure. Locate the relay in the vicinity of the isolating device (circuit breaker or contactor) that is protecting the circuit being monitored. Provide maximum clearance between the DGF5 and any strong magnetic flux producing devices such as power transformers, autotransformers, control transformers, reactors, high power conductors, contactors and other buswork. -
Page 7: Catalogue Numbers
Ground Fault Protection Unit with built-in 28 mm current sensor, 24 – 48 V AC Control Voltage, for use on 660 V maximum, 45 - 450 Hz power systems. Can be expanded with remote test button. B.V. DGF75 reference manual, rev. 1.0, June 12, 2023 Ground Fault Systems... -
Page 8: Technical Specifications
6.4 System power Voltage and current range 0 – 660 V AC, 0 – 100 A Frequency range 45 - 450 Hz Isolation voltage 2,5 kV RMS, 1 minute B.V. DGF75 reference manual, rev. 1.0, June 12, 2023 Ground Fault Systems... -
Page 9: Wires
Weight (open) 0,38 kg Weight (packaged) 0,42 kg 6.3 Environment Operating temperature -35 C to +60 C Storage temperature -40 C to +80 C Humidity 85% max (no condensation) B.V. DGF75 reference manual, rev. 1.0, June 12, 2023 Ground Fault Systems... - Page 10 10 G Vibration resistance (no malfunction) 10 G , 10 – 55 Hz at 1,5 mm double amplitude The DGF5 is encapsulated in polyurethane (PUR) to keep the exposure to mechanical shock, vibration and weather to a minimum. B.V. DGF75 reference manual, rev. 1.0, June 12, 2023...
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Page 11: Applicable Standards
UL 1053 UL standard for Safety Ground-Fault Sensing and Relaying Equipment, Class 1. CSA C22.2 NO. 144-M1991 CSA standard for Ground Fault Circuit Interrupters. File E203514 CE mark – Declaration of Conformity B.V. DGF75 reference manual, rev. 1.0, June 12, 2023 Ground Fault Systems... -
Page 12: Tables And Figures
8. T ABLES AND FIGURES Figure 1 - Typical Field Connection B.V. DGF75 reference manual, rev. 1.0, June 12, 2023 Ground Fault Systems... - Page 13 Figure 2 - Dimensions DGF5 B.V. DGF75 reference manual, rev. 1.0, June 12, 2023 Ground Fault Systems...
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