33KV power neutral grounding resistor
USD $3,000 - $10,000 /Set
Min.Order:1 Set
Shanghai Lingguang Electric Apparatus Manufacturing Co., Ltd.
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
1.Application
Neutral earthing resistor is a protective electrical appliance to connect the limitable earth current or leakage curent between the neutral point and the ground of the transformer or the generator to the set range,applicable to 50(60)HZ high voltage power transmission and distribution system.
ducts photo:
3.33KV neutral grounding resistor parameters:
Item | Sub Item | DESCRIPTION | Unit | Value |
1 |
| Rated System Voltage | KV | KV19 |
2 |
| Line - Neutral Voltage | KV | 33KV |
3 |
| Continuous current | A | 200A |
4 |
| Rated short-time current | A | 874.79A |
5 |
| Rated time | Sec. | 10S |
6 |
| Resistance at 20 °C,20 | Ohm | 21.78OHM |
7 |
| Resistance at 600 °C,600 | Ohm | 28.3OHM |
8 |
| Maximum element temperature rise | °C | 500K |
9 |
| Type of element | ||
10 |
| Element material | SUS304 | |
11 |
| Temperature coefficient of resistance | % / °C | 0.001 |
12 |
| Resistance change for 520°C rise, 520,. | % | 50% |
13 |
| Insulation level (to IEC 71-1) | KV BIL | 95kv |
14 |
| Bushing |
|
|
| 14-1 | HV BushingHV |
| CWW-40.5/630 |
| 14-1-1 | KV Class,KV | KV | 35KV |
| 14-1-2 | Insulation level (BIL)BIL | KV |
|
| 14-2 | LV Bushing LV |
|
|
| 14-2-1 | KV Class, KV | KV |
|
| 14-2-2 | Insulation level (BIL)BIL | KV |
|
15 |
| Current Transformer |
|
|
|
| Type |
| 36-9LZZB |
|
| Ratio |
| 1000/1A |
|
| precision & capacity, |
| 5P20/5P20 (15VA/15VA) |
16 |
| Enclosure |
|
|
| 16-1 | Material | ||
| 16-2 | Thickness | mm | 2mm |
| 16-3 | Finish | ||
| 16-4 | Final color | 7035RAL | |
| 16-5 | Ingress Protection | IP23 | |
| 16-6 | Net Dimension approximately |
|
|
|
| Width | mm | 3360 |
|
| Depth | mm | 1860 |
|
| Height | mm | 3000 |
17 |
| Weights |
|
|
|
| Net (Unpacked) | Kg | 2600 |