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Generator neutral grounding resistor cabinet

Generator neutral grounding resistor cabinet

Place of Origin : Hebei, China
Brand Name : MINGRUI
Model Number : MRD-FD
Packaging Details : wooden case
Delivery Time : 45days against deposit or L/C
Payment Terms : T/T,L/C, Money Gram, West Union
Supply Ability : 30sets/month
MOQ : 1set
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  1. Brief introduction

Neutral grounding resistor is used to decrease transient overvoltage when single-phase grounding, eliminate arc flash hazard and quickly locate the fault line and clear it up. This system is applicable to 6-35KV power distribution grid of cable lines in cities, large industrial enterprises, factories, airports, seaport and etc, as well as 0.66KV system in mine digging and 0.4KV/6KV/10KV system in power plants.

  1. Operating conditions

2.1Generally applicable to outdoors,used in the system of 50 Hz and 60 Hz.

2.2 The altitude shall not exceed 3500m.

2.3 Ambient temperature : -20centigrade~+70centigrade,Relative humidity: less than 95%

2.4 Wind pressure is not higher than 700Mpa (equal to wind velocity 34m/s)

2.5 Earthquake intensity : <8 degree

2.6 Thickness of coated ice: <10mm

2.7 Grade of air pollution: not higher class Four

2.8 The air at the installation site shall be free from inflammable/ explosive/ corrosive gas,and conductive dust.

2.9 As resistor is heating device. The temperature will rise high when using it. Therefore, some space should be left around the the place where the resistor is installed, avoiding being influenced by external heating source. Please pay close attention to this.

3. Ordering instructions

Please let us know the parameters below.

3.1 Rated Voltage of System: (kv)

3.2 Current Value Allowed to Flow Through in Short Time:(A)

9.3 Nominal Resistance Value:(ohm)

3.4 Whether current transformer needed or not (CT)?

Ratio and capacity and composite error of it is required.

3.5 Wire-in and wire-out modes are for choice:

a. top-in and bottom-out, b. bottom-in and bottom-out,

c.side-in and side-out, d. side-in and bottom-out.

3.6 Allowable Time of Current Flowing Through in Short Time:(S)

3.7 Material of resistor cubicle,protection grade of cubicle(IP), the color code and installation location.

3.8 Optional Devices: Recorder of Grounding, Controlling Device of Temp. and Humidity.

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