Mingrui Optoelectronics Technology Co., Ltd.
Home > Products > Power Distribution Equipments > Distribution 20KV NGRs Neutral Grounding Resistors Protecting Transformer(MRD-FD4)

Distribution 20KV NGRs Neutral Grounding Resistors Protecting Transformer(MRD-FD4)

— neutral grounding resistors, neutral earthing resistor, grounding resistors
Product Category: Power Distribution Equipments
Sales Method: Export, Manufacture
Payment Term: T/T, L/C
Min. Order Unit Price
1 set
Contact Info

Mrs.Mery Miao

Address: China (mainland) Hebei Baoding,No 118

Product Detail

Product Attribute:

  • China (mainland) More >
  • MRD-FD8
  • Mingrui
  • ISO9001:2000
  • 05/31/2012
  • 05/31/2012

Additional Info.:

  • by sea FOB tianjin
  • wooden case

Product Content Description:

1. Neutral Grounding Resistors Standards Carried-Out:

DI/780 -2001
distribution system neutral grounding resistor

GB6450
dry-type power transformer

DI/T620-1997
Overvoltage protection and insulation coordination of AC electrical equipment

GB/T16927-1997
high voltage testing technology

GB1208-1997
current transformer

GB4208-93
case protection grade

IEEE32-1972
Technologies ,terms, and experiments of neutral grounding equipments

GB311.1-1997
insulation coordination of high voltage transmission and distribution device

DL/T593-1996
common ordering technical conditions of high voltage switch device



GB50150-1991
standards of electrical equipment handing-over and experiment of electrical device installment project




2.Operation Conditions:

1. Mostly applied outdoor in system of 50Hz and 60Hz

2. Max Altitude is 3500m. Because of high altitude and bad thermal discharging in plateau, please indicate in order if in this situation.

3. Ambient Temp is between -20°C~+70°C and relative humidity does not excess 95%.

4. Wind pressure does not excess 700Mpa (equivalent to 34m/s)

5. Earthquake intensity is less than 8 degree.

6. Thickness of ice coverage is less than 10mm

7. Air dusty grade is not higher than IV grade

8. No corrosive or explosive gas and conductive dust around installation site.

9. As the resistor is a heat generating component, it should be installed in place with some space left around, and be away from heat source.

Type
System voltage

(kV)
Rated current

(A)
Short time(S)
Rated voltageΩ

(±5%)
Insulation resistance voltage Kv

8/20μS

Lightning surf
1min Frequency

MRD-BJ-6/36.4
6.3
100
10
36.4
60
32

MRD-BJ-6/18.2
6.3
200
10
18.2
60
32

MRD-BJ-6/9.09
6.3
400
10
9.09
60
32

MRD-BJ-6/6.06
6.3
600
10
6.06
60
32

MRD-BJ-10/15.16
10.5
400
10
15.16
75
42

MRD-BJ-10/10.10
10.5
600
10
10.10
75
42

MRD-BJ-10/7.57
10.5
800
10
7.57
75
42

MRD-BJ-10/6.06
10.5
1000
10
6.06
75
42

MRD-BJ-35/20.20
35
1000
10
20.20
185
95

MRD-BJ-35/10.10
35
2000
10
10.10
185
95
Quantity Per Month: 50 sets
Patent No./Country: MADE IN CHINA
Delivery Way - Date Of Delivery: 20-30 days

Send your inquiry to this supplier

- Your message must be between 20-3000 characters.

Browse

- jpg, jpeg, gif, txt, doc, pdf, xls, docx,xlsx, rar or zip format;
- Max. size of 2MB