THT-DZ low voltage Neutral Grounding Resistor box

1.About us:

Baoding Tianwei Hengtong Electric company is a domestic professional manufacture of power system neutral grounding equipments and complete implements ISO9001 quality management system. We have a excellent sales performance all over the world and have been exported to more than 40 countries. TWHT offers a complete range of products for the necessary neutral-point connections

2.General introduction

THT-DZG low voltage neutral grounding resistor cabinet (NGR or NER) are employed in medium-voltage AC distribution networks to limit the current that would flow through the neutral point of a transformer in the event of an earth fault. It connected between the neutral point of the transformer and the earth.

 

3.Product Features

The resistor (cabinets)adopt stainless steel platers or cold-rooled steel plates

The resistor adopt nickel-chromium ally, fearuring high conductivity and high temperature resistance ,with the maximum applicable temperature up to 1,400℃, small temperature coefficient, stable resistance value ,excellent flame and explosion-pfoof performance and high reliability.

4 technical parameter

RATED VOLTAGE: 1-10KV
RATED FREQUENCY:50Hz
RATED CURRENT:100A
RATED TIME:10S-1HS
CURRENT TRANSFORMER: 50/1A, 20VA
RESISTANCE VALUE:35OHM