Typical Technology Parameters

Various resistors could be designed as per customers' requirement, value ranging from 1Ωto 2000Ω. Current allowed to flow through is  from 1A~2000A and the flowing time is 10s,15s,30s,60s and 2h.

Schematic Diagram for Wire Connection

6.1 The transformer adopts star connection with neutral leading-out wire ,connected as in figure 5.

6.2 If the neutral is triangle-connected, neutral grounding resistor is grounded by grounding transformers. Connection is as in figure 6

Service Condition

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

8.2 The altitude shall not exceed 3500m.

8.3 Ambient temperature : -20℃~+70℃, Relative humidity:≤95%

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

8.5 Earthquake intensity : ＜8 degree

8.6 Thickness of coated ice: ＜10mm

8.7 Grade of air pollution: not higher class Ⅳ

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

8.9 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.

Notice for Ordering

Please let us know the parameters below.

9.1 Rated Voltage of System: (kv)

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

9.3 Nominal Resistance Value:(Ω)

9.4 Whether current transformer needed or not (CT)?

  Ratio and capacity andcomposite error of it is required.                 

9.5 Wire-in and wire-outmodes 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.

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

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

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