Home Products Neutral earthing device High Resistance Neutral Grounding Resistor

High Resistance Neutral Grounding Resistor

    1）  0-10 A analog ammeter, 0-250 V analog voltmeter with setting on panel
    2）  Automatic door switch for power shut down
    3）  Test button to indicate fault
    4）  Green light for normal conditions
    5）  Intermittent alarm and red light during ground fault
    6）  Pulse/Normal Selector swith to magnify current and intermittent pulse during ground fault
    7）  Auxiliary free contacts at pulse and alarm position during fault
    8）  Dimensions (LxWxH)= 60 x 60 x 180 cm (Other enclosure types avaible on demand)
    9）  Suitable for 240-5000 V three phase systems
    10）  Optional data logging

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The design and operation
The design and operation of 240-5000 V systems, service continuity, personnel and equipment safety are the most
important aspects in industrial systems. The use of the high-resistance grounded (HRG) system can provide a safe,
reliable and economic system for 240-5000 V networks.

HRG systems limit the fault current by placing high resistance between neutral point of transformer (or generator) and
ground. As it is not possible to locate the fault point in delta connected systems, an artificial neutral point is created and
delta connected system can be grounded. This allows a fault current of a few amperes thus locating the fault point gets
easy.
When the neutral point is grounded thru high resistance, both continuity of operation is provided during fault condition
and sufficient current (typically between 2 A and 10 A) flow is provided for ease of locating the fault point.

Approximate phase to earth fault current in 240-5000 V networks are:
1） Solidly grounded systems : 1000-6000 A
2） Low resistance grounded systems: 100-1000 A
3） High resistance grounded systems: 2-10 A
4） Ungrounded (or delta) cable system: 0.3-2.8 A/km: 2-10 A

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Q1. Are you the manufacturer or trader?

A:WEIFAN is a leading & professional manufacturer located in hebei province of China.

Q2. What is your main markets?

A:Our main market is in home & a half in South-East Asia, Middle East,West-Africa, East-European countries & Some South America..etc

Q3. What is your delivery & after-sales serive?

A:The delivery is according to order qty, normally for containers order we need 1 month. Per each month 20 containers (20’ft or 40’ft)are no problem for us .

We can answer user’s question and solve their problem in 24 hrs per each day and give full technical support in time to all of our products.

Q4. What is your product warranty?

A:Firstly we have quality certificates like CCC, ISO9001..etc .We supply 18 months quality guarantee,during this period we supply free repair,maintenance and technical support.

Q5.Do you accept OEM and ODM?

A:Yes. Our R & D team owns latest technology ,can develop & produce products as customers’ drawing & under their brand

Q6. What is your payment terms?