China High Quality earth resistivity test Factories – Online Insulation Monitoring Device for DC System – HV Hipot

China High Quality earth resistivity test Factories – Online Insulation Monitoring Device for DC System – HV Hipot

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China High Quality earth resistivity test Factories – Online Insulation Monitoring Device for DC System – HV Hipot Detail:

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.

Features

● Modular international standard industrial controller structure, standard shell, small size and light weight, easy installation and maintenance;
● Single/double bus up to 64 loop monitoring, DC balanced resistance detection method, no bus interference;
● Branch fast detection, inspection time is less than 20 seconds;
● The measured results are not related to bus distributed capacitance;
● Automatic/manual inspection of branches;
● The configuration of DC leakage current sensor is flexible and convenient.
● Isolated RS-485 communication interface, MODBUS/Emerson communication protocol is fully compatible;
● Industrial operating temperature range;

Specification

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
Bus resistance accuracy         ±5%  
Branch resistance range Rz Vin=Vf 0.0   100.0
Branch resistance accuracy         ±5%  
Branch numbers of each segment N   0   64  
Rated power consumption Po     3   W
Operating temperature range Tj   -10   50
Alarm contact capacity Pf DC, no sense     220V 0.2A  

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Our corporation has been specializing in brand strategy. Customers' gratification is our greatest advertising. We also source OEM company for China High Quality earth resistivity test Factories – Online Insulation Monitoring Device for DC System – HV Hipot , The product will supply to all over the world, such as: Philippines, Iraq, Grenada, Our main objectives are to provide our customers worldwide with good quality, competitive price, satisfied delivery and excellent services. Customer satisfaction is our main goal. We welcome you to visit our showroom and office. We are looking forward to establish business relation with you.
  • We are long-term partners, there is no disappointment every time, we hope to maintain this friendship later!
    5 Stars By Mamie from Portugal - 2017.01.11 17:15
    As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
    5 Stars By Anna from Romania - 2017.10.13 10:47

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