Underground Fault indicator DYO-FF-FI

Overview

Underground cable fault indicator DYO-FF-FI cable fault indicator, support detection of short circuit fault ground fault, display fault status through panel LED fault light, with detachable stainless steel bracket sensor, cable fault indicator can be flexibly fixed on the cable with shielding protective layer, a control panel unit With 3 short-circuit sensors and 1 ground sensor connected by copper core cable

Feature and Benefit

Stability & Reliability

40uA
Static power consumption

High-performance industrial 32-bit CPU, support low power consumption mode
Flexible parameter setting method

DIP setting
Support DIP switch and remote setting parameters
Status indication via integrated LED lights

Bright LED prompt
When a phase-to-phase short circuit or a ground (phase-to-ground) fault occurs, the corresponding red LED light will give a flashing alarm indication
Quick installation

The control panel is installed on the panel of the switchgear / wall-mounted installation Protection class IP54
The sensor is mounted on a shielded cable, protection class IP69

Technical Parameter

Parameter	value
Voltage class of cable power distribution lines	5-38KV
Short-circuit Trip Current (Phase to Phase)	150A/360A/450A/625A，default 150A，adjustable by DIP switch
Short-circuit Response Delay Time	50ms/100ms /150ms /200ms，default 50ms，adjustable by DIP switch
Earth-fault Trip Current (Phase to Ground)	40A/80A/120A/160A，default 40A，adjustable by DIP switch
Earth-fault Response Delay Time	50ms/100ms /150ms /200ms, default 50ms，adjustable by DIP switch
Fault Indication	Earth-fault: 1 Red LED Short-circuit: 3 Red LED Low Battery alarm: 1 Yellow LED
Reset of the Indicator	1. Manual by push button 2. Timing Reset 3. DI reset from SCADA 4. Load current recovering reset (at least 15A) 5. 220~240VAC recovering reset 6. Communications by MODBUS
Power Supply	Lithium battery type AA 3.6V / 2.7Ah Optional 5~36VDC external power supply
Communication	RS485: Data bits 8/Stop bits 1/Parity none/Baud Rate:9600 Protocol: MODBUS RTU
Installation	Display unit: wall-mounted installation
Dimensions	Indication unit (W x H x D) 100mm x 120mm x 45mm (exclusive cable gland)
Protection Class	Display unit: IP54
	Sensors: IP68
Internal Type Test	According to IEEE495-2007
Operation Temperature Range	-40℃~+70℃
Short-circuit Sensor	3 short-circuit sensor for 3 phase cable Diameter: Max.40mm
Earth-fault Sensor	1 earth-fault sensor for a three-core cable Diameter: Max.110mm
Configuration	Setting via DIP switch