Photos of Product
Medium Voltage 20KV 22KV 24KV Metal Enclosed Ring Main Unit RMU /Electrical Switchboard panel HXGN15
The HXGN15 AC Metal-enclosed Ring Main Unit Switchgear (hereinafter referred to as "ring main unit") is a new product designed and developed by Denggao Electric co. from overseas with advanced latest techniques. The technical indicators of the product reach standards of IEC62271-200 and GB3906. The product is characterized by small volume, light weight, operation flexibility, maintenance convenience, and quality stability & reliability, and it comes out with perfect interlock protection functions and IP3X protection grade, so it is an ideal product for mains grid reconstruction. The product is mainly applicable to a 50Hz three-phase AC network for receiving and distributing energy.
Mainly applicable in urban power grid construction and renovation project. industrial and mining enterprises.high-rise buildings and communal facilities. For power distribution controlling and protecting electric equipment such as the loop power supply unit or terminal equipment. It also can be installed in a preloaded substation
Feature:
Uses SF6 load switch and load switch-fuse combination as the main switch. Equipped with vacuum load switch and spring operating mechanism which can be operated by hand or electric. Earthing switches and insulating switches are equipped with a hand operating mechanism. With small volume and high security
1. Many years ring main unit manufacturer
2. Easy installation
3. Less maintenance
4. Safe and upgradeable
Technical reference:
No. |
Item |
Unit |
Data |
1 |
Rated voltage |
kV |
7.2/12 |
2 |
Rated current of the main bus-bar |
A |
630 |
3 |
Rated current of incoming |
A |
630 |
4 |
Rated current of outgoing |
A |
125 |
5 |
Rated short-time withstand current 4s |
kA |
20 |
6 |
Rated withstand current (peak) |
kA |
31.5 |
7 |
Rated short circuit making current (peak) |
kA |
50 |
8 |
Rated active load breaking current |
A |
630 |
9 |
Rated closed loop breaking current |
A |
630 |
10 |
Rated cable charging current |
A |
10 |
11 |
Earth switch rated short-time withstand current 2s |
kA |
20 |
12 |
Earth switch rated withstand current (peak) |
kA |
50 |
13 |
Earth switch rated short circuit making current (peak) |
kA |
50 |
14 |
Rated AC current of the combination |
A |
3150 |
15 |
1 min power frequency withstand voltage |
kV |
42/48 |
16 |
Lightning impulse withstand voltage |
kV |
75/85 |
17 |
Mechanical life of Vacuum load breaker |
times |
10000 |
18 |
Mechanical life of Disconnector |
times |
2000 |
19 |
Load breaker average closing speed |
m/s |
0.6±0.2 |
20 |
Load breaker average opening speed |
m/s |
1.1±0.2 |
21 |
Load breaker three-phase asynchronous |
mS |
≤2 |
22 |
Protection class |
IP3X |