• Model NO.：GDF-5000,OL
• Weight：0-100Kg
• Power Source：AC220V
• Voltage measurement accuracy：0.5 class
• Bus resistance range：0-999 K ohm
• Branch resistance range：0-100 KΩ
• Branch resistance accuracy：0.5 class
• Branch numbers of each segment：0-64
• Rated power consumption：3W
• Warranty：1 year
• Transport Package：Standard Export Wooden Box
• Specification：ISO, SGS
• Trademark：HV Hipot
• Origin：Wuhan, China
• Production Capacity：5000set,Year

Basic Info.

Model NO. GDF-5000/OL Weight 0-100Kg Power Source AC220V Voltage measurement accuracy 0.5 class Bus resistance range 0-999 K ohm Branch resistance range 0-100 KΩ Branch resistance accuracy 0.5 class Branch numbers of each segment 0-64 Rated power consumption 3W Warranty 1 year Transport Package Standard Export Wooden Box Specification ISO, SGS Trademark HV Hipot Origin Wuhan, China Production Capacity 5000set/Year

Product Description

GDF-5000/OL Online Insulation Monitoring Device for DC System


General information

GDF-5000/OL Online Insulation Monitoring Device for DC System is used for real-time online monitoring of insulation status of DC bus and branch. This device adopts the detection method of DC balanced resistance. It does not produce any AC or DC interference signal to busbar, and will not cause the artificial insulation resistance drop. It is suitable for power plants and substations of any voltage level.
GDF-5000/OL's unique stability and anti-distributed capacitance make it more suitable for bus system under complex working conditions, standard instrument structure, compact size, convenient installation and better applicability.
GDF-5000/OL has LCD display, full software function control, perfect man-machine interface, easy operation and use.

Functions
 

1. Monitoring Display

Voltage value of double segment bus;
Voltage value of positive and negative end of double segment bus to ground;
Resistance value of positive and negative end of double segment bus to ground;
All branch numbers, insulation resistance values;
 

1. Alarm Item

Bus insulation alarm;
Branch grounding alarm;
Bus over and under voltage alarm;


Features
 

1. Modular international standard industrial controller structure, standard shell, small size and light weight, easy installation and maintenance;
2. Single/double bus up to 64 loop monitoring, DC balanced resistance detection method, no bus interference;

1. Branch fast detection, inspection time is less than 20 seconds;
2. The measured results are not related to bus distributed capacitance;
3. Automatic/manual inspection of branches;
4. The configuration of DC leakage current sensor is flexible and convenient.
5. Isolated RS-485 communication interface, MODBUS/Emerson communication protocol is fully compatible;
6. Industrial operating temperature range;

Technical Specifications

Parameters	Symbol	Test condition	Min.	Typical	Max.	Unit
Input voltage grade	Vin			24, 48, 110, 220		V
Input voltage range	Vf		80%Vin		140%Vin	V
Voltage measurement accuracy		Vin=Vf			±0.5%
Bus resistance range	Rm	Vin=Vf	0		999	KΩ
Bus resistance accuracy					±5%
Branch resistance range	Rz	Vin=Vf	0.0		100.0	KΩ
Branch resistance accuracy					±5%
Branch numbers of each segment	N		0		64
Rated power consumption	Po			3		W
Operating temperature range	Tj		-10		50	ºC
Alarm contact capacity	Pf	DC, no sense			220V 0.2A