China New Product Resistor Connected To Ground - Neutral Grounding Resistor, NGR EGR – Wepower

Short Description:


Product Detail

Product Tags

Related Video

Feedback (2)

That has a sound business credit history, outstanding after-sales service and modern producing facilities, we have earned an superb popularity amid our buyers across the planet for External Braking Resistor, Dc Braking Resistor Sizing, Braking Resistor Duty Cycle, We warmly welcome clients from all around the world for almost any sort of cooperation with us to build a mutual advantage potential. We've been devoting ourselves wholeheartedly to supply consumers the very best company.
China New Product Resistor Connected To Ground - 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:

image1

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:

China New Product Resistor Connected To Ground - Neutral Grounding Resistor, NGR EGR – Wepower detail pictures

China New Product Resistor Connected To Ground - Neutral Grounding Resistor, NGR EGR – Wepower detail pictures

China New Product Resistor Connected To Ground - Neutral Grounding Resistor, NGR EGR – Wepower detail pictures

China New Product Resistor Connected To Ground - Neutral Grounding Resistor, NGR EGR – Wepower detail pictures

China New Product Resistor Connected To Ground - Neutral Grounding Resistor, NGR EGR – Wepower detail pictures


Related Product Guide:

Innovation, quality and reliability are the core values of our company. These principles today more than ever form the basis of our success as an internationally active mid-size company for China New Product Resistor Connected To Ground - Neutral Grounding Resistor, NGR EGR – Wepower , The product will supply to all over the world, such as: Colombia, Sweden, Jamaica, Our items are exported worldwide. Our customers are always satisfied with our reliable quality, customer-oriented services and competitive prices. Our mission is "to continue to earn your loyalty by dedicating our efforts to the constant improvement of our merchandise and services in order to ensure the satisfaction of our end-users, customers, employees, suppliers and the worldwide communities in which we cooperate".
  • It can be said that this is a best producer we encountered in China in this industry, we feel lucky to work with so excellent manufacturer.
    5 Stars By Fernando from Ghana - 2018.06.09 12:42
    It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
    5 Stars By Alice from Roman - 2018.03.03 13:09