Wholesale Price China Resistant Aluminum Fence - Neutral Grounding Resistor, NGR EGR – Wepower
Wholesale Price China Resistant Aluminum Fence - Neutral Grounding Resistor, NGR EGR – Wepower Detail:
█ Product Features
1. Voltage range:0.33 ~110KV
2. Rated Current: 1~5000A
3. Resistance Range:0.1Ω∽1500Ω
4. Working time: 5s,10s,30s,60s,10mins,working continuous
5. Ingress Protection:IP20~IP55
6. Installation:Indoor、Outdoor;
7. Auxiliary parts: disconnecting switch, circuit breaker, CT, PT etc.
8. Resistor temperature rise:
1)Rated time :10s, maximum temperature rise≤760K;
2)Rated time : 10s<t<10mins, maximum temperature rise ≤610K;
3)Working continuous, maximum temperature rise ≤385K;
█ Wire Diagram
The electrical connection mode between neutral point three-phase AC power grid and earth, called grounding mode for neutral point. Neutral point grounding resistor principle diagram as follows:
Neutral point of transformer, the grounding resistor has two ways:
On the secondary side the transformer is a star connection method, the neutral point grounding resistor straight. (see Figure.1)
On the secondary side the transformer is a triangle connection method, the neutral point grounding transformer grounding through grounding transformer. (see Figure. 2)
█ Production Selection Table
6.3KV series neutral grounding resistor selection table, as following:
Type |
Neutral Voltage |
Resistance |
Fault Current |
Rated Time |
Protection Class |
Enclosure |
|||
Line Voltage |
Phase Voltage |
Length |
Width |
High |
|||||
KV |
KV |
[Ω] |
[A] |
[s] |
IP |
[mm] |
[mm] |
[mm] |
|
TNGR |
6.3 |
3.64 |
72.8 |
50 |
10 |
IP2X |
800 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
36.4 |
100 |
10 |
IP2X |
800 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
18.2 |
200 |
10 |
IP2X |
800 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
14.6 |
250 |
10 |
IP2X |
800 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
12.1 |
300 |
10 |
IP2X |
800 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
9.1 |
400 |
10 |
IP2X |
1000 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
7.3 |
500 |
10 |
IP2X |
1000 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
6.1 |
600 |
10 |
IP2X |
1000 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
4.6 |
800 |
10 |
IP2X |
1000 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
3.6 |
1000 |
10 |
IP2X |
1000 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
3.0 |
1200 |
10 |
IP2X |
1000 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
2.6 |
1400 |
10 |
IP2X |
1000 |
1000 |
1180 |
TNGR |
6.3 |
3.64 |
2.3 |
1600 |
10 |
IP2X |
1000 |
1000 |
1180 |
10.5KV series neutral grounding resistor selection table,as following:
Type |
Neutral Voltage |
Resistance Value |
Fault Current |
Rated Time |
Protection |
Enclosure |
|||
Line Voltage |
Phase Voltage |
Length |
Width |
High |
|||||
KV |
KV |
[Ω] |
[A] |
[s] |
IP |
[mm] |
[mm] |
[mm] |
|
TNGR |
10.5 |
6.06 |
121.2 |
50 |
10 |
IP2X |
800 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
60.6 |
100 |
10 |
IP2X |
800 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
30.3 |
200 |
10 |
IP2X |
800 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
24.3 |
250 |
10 |
IP2X |
800 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
20.2 |
300 |
10 |
IP2X |
800 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
15.2 |
400 |
10 |
IP2X |
1000 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
12.2 |
500 |
10 |
IP2X |
1000 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
10.1 |
600 |
10 |
IP2X |
1000 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
7.6 |
800 |
10 |
IP2X |
1200 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
6.1 |
1000 |
10 |
IP2X |
1200 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
5.1 |
1200 |
10 |
IP2X |
1200 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
4.3 |
1400 |
10 |
IP2X |
1200 |
1000 |
1480 |
TNGR |
10.5 |
6.06 |
3.8 |
1600 |
10 |
IP2X |
1200 |
1000 |
1880 |
TNGR |
10.5 |
6.06 |
3.4 |
1800 |
10 |
IP2X |
1200 |
1000 |
1880 |
20KV series neutral grounding resistor selection table,as following:
Type |
Neutral Voltage |
Resistance Value |
Fault Current |
Rated Time |
Protection |
Enclosure |
|||
Line Voltage |
Phase Voltage |
Length |
Width |
High |
|||||
KV |
KV |
[Ω] |
[A] |
[s] |
IP |
[mm] |
[mm] |
[mm] |
|
TNGR |
20 |
11.55 |
231 |
50 |
10 |
IP2X |
1300 |
2300 |
2300 |
TNGR |
20 |
11.55 |
115.5 |
100 |
10 |
IP2X |
1300 |
2300 |
2300 |
TNGR |
20 |
11.55 |
57.7 |
200 |
10 |
IP2X |
1300 |
2500 |
2300 |
TNGR |
20 |
11.55 |
46.2 |
250 |
10 |
IP2X |
1300 |
2700 |
2300 |
TNGR |
20 |
11.55 |
38.5 |
300 |
10 |
IP2X |
1300 |
2700 |
2300 |
TNGR |
20 |
11.55 |
28.9 |
400 |
10 |
IP2X |
1300 |
2500 |
2300 |
TNGR |
20 |
11.55 |
23.1 |
500 |
10 |
IP2X |
1300 |
2500 |
2300 |
TNGR |
20 |
11.55 |
19.3 |
600 |
10 |
IP2X |
1300 |
2700 |
2300 |
TNGR |
20 |
11.55 |
14.4 |
800 |
10 |
IP2X |
2100 |
2500 |
2000 |
TNGR |
20 |
11.55 |
11.6 |
1000 |
10 |
IP2X |
2100 |
2500 |
2000 |
TNGR |
20 |
11.55 |
9.6 |
1200 |
10 |
IP2X |
2100 |
2500 |
2000 |
TNGR |
20 |
11.55 |
8.3 |
1400 |
10 |
IP2X |
2100 |
2500 |
2000 |
TNGR |
20 |
11.55 |
7.2 |
1600 |
10 |
IP2X |
2100 |
2700 |
2000 |
TNGR |
20 |
11.55 |
6.4 |
1800 |
10 |
IP2X |
2100 |
2700 |
2000 |
TNGR |
20 |
11.55 |
5.8 |
2000 |
10 |
IP2X |
2100 |
2700 |
2000 |
35KV series neutral grounding resistor selection table,as following:
Type |
Neutral Voltage |
Resistance Value |
Fault Current |
Rated Time |
Protection |
Enclosure |
|||
Line Voltage |
Phase Voltage |
Length |
Width |
High |
|||||
KV |
KV |
[Ω] |
[A] |
[s] |
IP |
[mm] |
[mm] |
[mm] |
|
TNGR |
35 |
20.2 |
404.6 |
50 |
10 |
IP2X |
1600 |
2600 |
2524 |
TNGR |
35 |
20.2 |
202.3 |
100 |
10 |
IP2X |
1600 |
2600 |
2524 |
TNGR |
35 |
20.2 |
101.2 |
200 |
10 |
IP2X |
1600 |
2800 |
2524 |
TNGR |
35 |
20.2 |
80.9 |
250 |
10 |
IP2X |
1600 |
3000 |
2524 |
TNGR |
35 |
20.2 |
67.4 |
300 |
10 |
IP2X |
1600 |
3000 |
2524 |
TNGR |
35 |
20.2 |
50.6 |
400 |
10 |
IP2X |
1600 |
2800 |
2524 |
TNGR |
35 |
20.2 |
40.5 |
500 |
10 |
IP2X |
1600 |
2800 |
2524 |
TNGR |
35 |
20.2 |
33.7 |
600 |
10 |
IP2X |
1600 |
3000 |
2524 |
TNGR |
35 |
20.2 |
25.3 |
800 |
10 |
IP2X |
2400 |
2800 |
2144 |
TNGR |
35 |
20.2 |
20.2 |
1000 |
10 |
IP2X |
2400 |
2800 |
2144 |
TNGR |
35 |
20.2 |
16.9 |
1200 |
10 |
IP2X |
2400 |
2800 |
2144 |
TNGR |
35 |
20.2 |
14.5 |
1400 |
10 |
IP2X |
2400 |
2800 |
2144 |
TNGR |
35 |
20.2 |
12.6 |
1600 |
10 |
IP2X |
2400 |
3000 |
2144 |
TNGR |
35 |
20.2 |
11.2 |
1800 |
10 |
IP2X |
2400 |
3000 |
2144 |
TNGR |
35 |
20.2 |
10.1 |
2000 |
10 |
IP2X |
2400 |
3000 |
2524 |
Remark: For other technical parameters & requirements, please contact with our company’s business man.
Stainless steel resistors ,CT is optional(if other equipment like grounding transformer, isolating switch, vacuum contactor and the rated time >10S, the enclosure dimensions will be adjusted )
█ Main Executive Standard
• Specification for neutral-earth resistance in distribution system
• Insulation co-ordination of high voltage transmission and transformation equipment
• Degrees of protection provided by enclosure
• Current transformers
• High-voltage ceramic wall bushings technical specification
• High voltage post insulators ceramic material Part 1: Technical Specification
• High voltage test techniques Part 1: General requirements
• Requirements, Terminology and Test Procedure for Neutral Grounding Devices
█ Ordering Information
1. Rated voltage
2. Rated current
3. Resistance value
4. Rated time
5. Inlet and outlet way
6. Cabinet material、color
7. CT parameter
8. Grounding transformer parameter
9. Class of protection
10. Operating environment
11. Other special requirements, etc.
Product detail pictures:
Related Product Guide:
Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" plus the theory of "quality the basic, have faith in the main and management the advanced" for Wholesale Price China Resistant Aluminum Fence - Neutral Grounding Resistor, NGR EGR – Wepower , The product will supply to all over the world, such as: Albania, Canberra, South Korea, In the increasingly competitive market, With sincere service high quality products and well-deserved reputation, we always offer customers support on products and techniques to achieve long-term cooperation. Living by quality, development by credit is our eternal pursuit, We firmly believe that after your visit we will become long-term partners.
By Marjorie from Greece - 2017.09.16 13:44
The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
By John biddlestone from Casablanca - 2018.11.06 10:04