| Brand | MV Switchgear Accessories |
| Model NO. | HXGN17-12 12kV Box-type metal enclosed ring main unit for urban power grid |
| Rated voltage | 12kV |
| Rated normal current | 630A |
| Rated frequency | 50/60Hz |
| Series | HXGH17 |
The HXGN17-12 AC Metal-enclosed Ring Main Unit Switchgear (hereinafter referred to as "ring main unit") is a new product designed and developed by from oversea advanced latest techniques. The technical indicators of the product reaches standard 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 protecton grade, so it is an ideal product for mains grid reconstruction. The product is mainly applicable to 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 protection on electric equipment as the loop power supply unit or termina equipment. It also can be installed in preloaded substation.
Working Environment
1.Altitude: Not exceed 2500m above sea level
2.Ambient temperature:-25℃ ~ +45℃, the highest temperature is not exceed25℃
3.Ambient humidity: Daily average RH ≤ 95%; Monthly average RH ≤ 90%
4.Earthquake intensity: ≤ 8°
5.No flammable, explosive, no serious pollution, No chemical corrosion and severe vibration.
Technical Parameters
|
No. |
Item |
Unit |
Data |
||
|
FN12-10 |
FZN25-12 |
||||
|
1 |
Rated voltage |
kV |
12 |
12 |
|
|
2 |
Rated current |
load break switchgear |
A |
630 |
630 |
|
Combined switchgear |
A |
125 |
125 |
||
|
3 |
Rated frequency |
Hz |
50 |
50 |
|
|
4 |
Rated short-circuit breaking current |
kA |
31.5 |
31.5 |
|
|
Rated short-time withstand current |
kA |
20 |
20 |
||
|
Rated active on-load breaking current |
A |
630 |
630 |
||
|
5 |
Rated peak withstand current |
kA |
50 |
50 |
|
|
6 |
Rated power frequency voltage withstands inter-phase, to earth and to the open contact |
kV |
42 |
48 |
|
|
7 |
Thundering withstands voltage inter-phase, to earth and to the open the contact |
kV |
75 |
85 |
|
|
8 |
Mechanical life |
times |
10000 |
10000 |
|
|
9 |
Rated take-over current |
A |
3150 |
3150 |
|
|
10 |
Protection level |
IP2X |
IP2X |
||
|
11 |
Operating mode |
Manual or automatic |
Manual or automatic |
||
|
12 |
Control circuit rated voltage |
V |
DC: 110, AC:220 |
DC: 110, AC:220 |
|
Customization options include: ① Adjusting IP protection level (up to IP54 for harsh environments); ② Adding electric/manual operation mode switching; ③ Matching different accessories for box-type substation integration. Contact our technical team with your specific voltage, current, or environmental needs for tailored solutions.
Both are 12kV switchgears, but HXGN17-12 adopts a single-busbar structure with integrated "five-prevention" interlock, more suitable for frequent operation and terminal power supply. HXGN15-12 uses SF6 composite switches with air insulation, focusing on distribution automation expandability. Choose HXGN17-12 for scenarios requiring compact structure and stable interlocking performance.
It is a fixed metal-enclosed switchgear designed for 3-12kV AC 50/60Hz power systems with rated current ≤630A. Ideal for industrial and mining enterprises, box-type substations, urban power grids, and high-rise building power distribution, it excels in frequent operation scenarios with reliable power control and protection functions.
