New Fashion Design for Generator Load Bank Testing Procedure - Neutral Grounding Resistor, NGR EGR – Wepower
New Fashion Design for Generator Load Bank Testing Procedure - 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:
Gaining purchaser gratification is our company's aim eternally. We're going to make great initiatives to create new and top-quality products, satisfy your exclusive prerequisites and supply you with pre-sale, on-sale and after-sale solutions for New Fashion Design for Generator Load Bank Testing Procedure - Neutral Grounding Resistor, NGR EGR – Wepower , The product will supply to all over the world, such as: New Orleans, New York, Brisbane, Be sure to feel cost-free to send us your specs and we are going to respond for you asap. We have got a experienced engineering team to serve for the every single comprehensive needs. Free samples may be sent for yourself personally to know far more facts. So that you can meet your desires, please actually feel cost-free to contact us. You could send us emails and call us straight. Additionally, we welcome visits to our factory from all over the world for much better recognizing of our corporation. nd merchandise. In our trade with merchants of several countries, we often adhere to the principle of equality and mutual advantage. It is our hope to market, by joint efforts, both trade and friendship to our mutual benefit. We look forward to getting your inquiries.
By Gladys from Pakistan - 2017.08.28 16:02
This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
By Nancy from Sevilla - 2018.09.12 17:18
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