Hot Products
0102030405
12KV Ring Main Unit XGN-12 from China Factory - Reliable Suppliers for Distribution Automation Solutions
Model meaning
SF6 Load switch
Modular switch cabinet
Normal service condition
- Altitude: not exceeding 2000m;
- Ambient temperature: minimum temperature -25℃, maximum temperature +40℃;
- Ambient humidity: daily average not exceeding 95%; monthly average not exceeding 90%;
- Seismic resistance: 8;
There should be no explosive or corrosive gas in the ambient air, and no severe vibration or impact in the installation site.
Main purpose
- The XGN□-12 modular metal enclosed ring main unit is suitable for power system with rated voltage of 12kV and rated frequency of 50Hz, and is widely used in industrial and civilian cable ring network and power supply terminal.
- The XGN □-12 modular metal enclosed ring main unit is particularly suitable for the following places: urban residential area and industrial and mining enterprise power distribution, small secondary substation, switching station, box-type substation, shopping mall, airport, subway, wind power generation, hospital, sports venue, railway, bridge, tunnel, etc.
Reference standard
GB/T191
Packaging-Pictorial Marking for Handling of Goods (ISO 780-111997, MOD)
GB1985-2004
High-voltage alternating-current disconnectors and earthing switches (IEC 62271-102:2002, MOD)
GB 3804-2004
High-voltage alternating current switches for rated voltage above 3.6 KV and less than 40.5 KV (IEC 60265-1:1998, MOD)
GB 3906-1991
A.C. metal-enclosed switchgear for rated voltages of 3~35kV (neq IEC 60298:1990)
GB 4208-1993
Degrees of protection provided by enclosure (IP code) (eqv IEC 60529:1989)
GB/T 5582-1993
External insulation pollution classes of high-voltage electric power equipments (eqv IEC 507:1991)
GB/T 6388
Transport package shipping mark
GB 9969.1
General principles for preparation of instructions for use of industrial products
GB/T11022-1999
Common specifications for high-voltage switchgear and controlgear standards (eqv IEC 60694:1996)
GB/T 11023-1989
Test method of SF6 gas tightness for high-voltage switchgear
GB/T13384
General specifications for packagings of mechanical and electrical products
GB/T14436
General principles of industrial product guarantee documents
GB16926-1997
High-voltage Alternating Current Switch-fuse Combinations (eqv IEC 60420:1990)
JB/T 8754-1998
Method for Model Compilation of High Voltage Switchgear
DL/T 404-1997
Technical Conditions for Ordering Indoor Ac High Voltage Switchgear (neq IEC 60298:1981)
Main technical parameters
| Item name | Unit | Load switch cabinet | Combination electrical cabinet | Circuit breaker cabinet |
|---|---|---|---|---|
| Rated voltage | kV | 12 | ||
| Rated frequency | Hz | 50/60 | ||
| Rated current | A | |||
| Main busbar | A | 630 | ||
| Branch busbar | A | 630 | 125 (depending on the rated current of the fuse) | 630 |
| Rated insulation level | kV | |||
| Power frequency withstand voltage (phase-phase and phase-ground) | kV | 42 | ||
| Power frequency withstand voltage (across isolating distance) | kV | 48 | ||
| Power frequency withstand voltage (control and auxiliary circuit) | kV | 2 | ||
| Lightning impulse withstand voltage (phase-phase and phase-ground) | kV | 75 | ||
| Lightning impulse withstand voltage (across isolating distance) | kV | 85 | ||
| Rated short-time withstand current (r.m.s) | kA | 20 | - | 25 |
| Main circuit | kA | 50 | - | 63 |
| Ground circuit | kA | 50 | 80 | 63 |
| Rated peak withstand current (peak) | kA | 31.5 | 25 | |
| Rated short-circuit making current (peak) | A | - | 1750 | |
| Rated short-circuit breaking current | A | 630 | - | |
| Rated transfer current | A | 630 | - | 630 |
| Rated active load breaking current | A | 10 | - | 15 |
| Rated closed-loop breaking current | IP3X | |||
| Rated cable charging breaking current | Time | |||
| Protection level | 5000 | 5000 | 10000 | |
| Mechanical life | 2000 | 2000 | 2000 | |
| Load switch | ||||
| Ground switch | ||||
Frequently Asked Questions
1. What are the installation altitude limitations for the XGN□-12 ring main unit?
The normal service condition for the installation altitude of the XGN□-12 modular metal enclosed ring main unit should not exceed 2000 meters above sea level.
2. What are the ambient temperature requirements for operating this switchgear?
The switchgear is designed to operate within an ambient temperature range from a minimum of -25℃ to a maximum of +40℃.
3. Where is the XGN□-12 modular ring main unit typically used?
It is highly suitable for urban residential power distribution, industrial and mining enterprise networks, small secondary substations, switching stations, airports, subways, wind power generation, hospitals, and various sports venues.
4. What is the protection level provided by the switchgear enclosure?
Based on the technical specifications, the protection level provided by the metal enclosure of the switchgear system is rated at IP3X.
5. What is the mechanical life of the circuit breaker cabinet compared to the load switch?
The circuit breaker cabinet is rated for a mechanical life of 10,000 operations, whereas both the load switch cabinet and combination electrical cabinet are rated for 5,000 operations.