Neutral grounding resistor

Specifications

Company Information

 

       Shanghai Lingguang Electric Apparatus Manfacturing Co.,LTD (Lingo)established in 1991.

       Professional industrial electrical products -- resistance box, load box, center grounding resistance, manufacturers in domestic resistor manufacturing enterprises have higher visibility.

       With nearly 150 employees, scientific and technical force is abundant, has many national patents (Example: ZX18V type resistors, patent number 03230790).

       Had including CNC plate shears, CNC folding machine, CNC punching, more than 60 sets of large-scale processing equipment.

       Enterprise through IS09001 quality system, ISO14001.2004 environmental management system and GB/T2800-2001 worker health and safety management system.

       LINGO widely used in steel, electric power, ship, railway, electronics, and etc, the products have been exported to Japan, France, Germany, Egypt, etc.

       LINGO is located in Shanghai PuDong new area, has a total area of about 9,000 square meters workshops, warehouses and office center.

       Excellent ability of research development

       The advanced production processing equipment

       Complete production assembly processing capacity

       Perfect quality guarantee system

       Quickly logistic support capacity

       Timely and efficient service response

       Enterprising management team

       With first-class product quality to win the trust of customers

       With first-class marketing quality to win the confidence of users

       With first-class service quality to win the satisfaction of customers

 

Neutral grounding resistor is a protective electrical appliance to connect the limitable earth current or leakage current between the neutral point and the ground of the transformer or the generator to the set range .

   Resistor parameters

1.1  System voltage: 66KV

1.2 Resistance loop: 66/ KV

1.3  Rated current and time: 874.79A /10s

1.4  Rated resistance: 43.5ohm

1.5  Resistance material: 310s

1.6 Resistance tolerance: ±5%

1.7  Industry frequency withstand voltage:

1.8  External creepage distance rate: 35mm/KV

1.9 Internal creepage distance rate: 25mm/KV

1.10  Air distance: 550mm

1.11  Working condition

1.11.1  Installation type: outdoor

1.11. IP Degree: IP 23

1.11.3  Line incoming and outgoing mode: incoming from above and outgoing from the bottom.

1.11.4Enclosure material: dip-galvanized plate

1.11.Overall dimension: 6500(W) X 2000(D) X 3800(H)

1.11.6 Units connection type: stainless steel tube binding outside

1.11.7LG09 Overall drawing: LG09.120709BZ001-2

1.12 :  Standards : IEEE32,DL/T 780-2001

Single box resistor

2.1  Rated resistance value: 5.44ohm

2.2  Resistance tolerance: ±5%

2.3 42KV1min (50Hz)

     Industry frequency withstand voltage: 42KV /MIN(50HZ)

2.4 External creepage distance rate: 35mm/KV

2.5 Internal creepage distance rate: 25mm/KV

2.6  Installation mode: outdoor

2. IP Degree: IP23

2.8Enclosure material : dip-galvanized plate

2.9 Overall dimension: 1200(W) X 1500(D) X 1120(H)

2.10 Overall drawing: LG09.120709BZ001-1

   Resistance units

3.1   Units

3.1.Units name: 310s

3.1.2 Units resistance rate: 0.95±0.05

3.1.3 K

     Units temperature coefficient K

3.1.4 Rust quality: quite good

3.1.5  Machining property: quite good

Clavate type support insulator parameters for external

Wall bushing parameters for external