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.