11kv 1000kva Custom Mobile 1250KVA Prefabricated Box Type
Substation 11KV Design Manufacturers In China
Ac metal closed type shift switch cabinet is a three-phase ac 50HZ
indoor device metal closed switch equipment.Is used in power
plants, substation system rated voltage 35kV, rated maximum current
2000A maximum voltage no more than 40.5kV single bus or single bus
sectionalized sets of distribution equipment.
This switch device meets the requirements of DL/ t404-91, IEC298,
GB3906 and other standards, and has the functions of preventing
wrong operation of circuit breaker, pushing and pulling handcart
with load, grounding line, power transmission with grounding line
and accidental charging interval (referred to as "five
precautions").
Box type substation is suitable for residential district, urban
public change, bustling downtown, construction power and so on.
Users can choose box type change according to different use
conditions and load grade. Since the advent of the box substation,
it has developed very rapidly. In developed countries, 70% of the
distribution transformers have been developed, and the United
States has accounted for 90%. The rapid development of China's
urban modernization and the renovation of urban distribution
network will be widely applied.environment condition.
Box type substations are used in high-rise residential, luxurious
villas, square parks, residential areas, small and medium
factories, mines, oil fields, and temporary construction
electricity and other places to accept and distribute electricity
in the distribution system.
·Structure features:
1) Smaller occupied area
2) Firm and reliable
3) Easy to move, beautiful and practical
4) Its cost is low, and the installation period is short
Note: Due to continuous product improvement, the dimensions provided in
this sample are for reference only. If necessary, our company can
design and produce according to user requirements. Please contact
the company in time.
| Main technical parameters |
| Main circuit rated voltage(V) | .......................... | Ac 400 (600) |
| Rated voltage of auxiliary circuit (V) | .......................... | Ac 220/380 (400) dc 110/220 |
| Rated frequency (Hz) | .......................... | 50(60) |
| Rated insulation voltage(V) | .......................... | 690(1000) |
| Rated current(A) | The level of bus | ≤6000 |
| Rated short-time bus withstand current (kA/1s) | .......................... | 50,80 |
| Rated peak withstand current of bus (kA/0.1s) | .......................... | 105,176 |
Power frequency test voltage (V/1min) | main circuit | 2500 |
| Auxiliary circuit | 1760 |
bus | Three-phase four-wire system | A,B,C,PEN |
| Three-phase five-wire system | A,B,C,PE,N |
| Protection grade | .......................... | IP30 |
·Use condition
1. The maximum ambient air temperature shall not exceed 45℃, and
the minimum shall not exceed - 45℃;
2. The altitude shall not exceed 1000m. If special customized
transformers and low-voltage components are used, the altitude can
reach 4000m;
3. It shall be placed in a place with a vertical inclination of no
more than 5°and no severe vibration or impact;
4. The air humidity is not more than 90% (+ 25℃);
5. Gas place without conducting dust, explosion hazard, corrosion
metal and electrical components;
6. Outdoor wind speed shall not exceed 35m/s.
7. If the above normal use environment conditions are exceeded, the
customer can customize it with our company.
·Ordering instruction
1. Conceptual drawing or electrical schematic diagram of main
circuit.
2. Model, specification and quantity of main components.
3. Incoming and outgoing line mode and cable specification, etc.
4. Shell material and appearance: composite plate, steel plate,
stainless steel plate, cement plate, etc.
5. Other order requirements.
