DFW-12 High Voltage Cable Branch Box
3 Dimension (3D) Wound Cores” are made from three identical single-core frames of trapezoidal silicon steel tape, wound into a compact triangular structure that eliminates air gaps. This innovative design ensures uniform flux flow, reduces total core weight, lowers no-load loss by 20-25%, and decreases excitation current by 50%, significantly minimizing reactive loss and improving the transformer’s power factor (Cos-phi).
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Description
1. Fully insulated, fully sealed structure, full protection, all working conditions;2. Under the condition of not affecting the operation of the main network, the maintenance of regional power outage isrealized.
3.Equipped with fully hermetically sealed silicone rubber plugs;
4.Configuration ofimported maintenance-free SF6 load switches;
5.With all the technical features of the common cable branch box
Outdoor Prefabricated Box Substation (EU)
| Serial Number | Name | Unit | Data |
| 1 | Rated voltage | kV | 12kV |
| 2 | Rated current | A | 630A |
| 3 | Power frequency withstand voltage (phase to phase / ground to ground / port) | kV | 42/48kV/1min |
| 4 | Impulse withstand Voltage (Lightning and Operation) (interphase / ground to ground / Port) | kV | 75/85kV |
| 5 | Rated breaking current | A | 630A |
| 6 | Breaking capacitor current | A | 45A |
| 7 | Switching on and off induced current | A | 16A |
| 8 | Earthleakage current (capacitance) | A | 165A |
| 9 | Rated peak withstand current 0.3s | A | 50kA |
| 10 | Rated short-time withstand current 2s | A | 20kA |
| 11 | Rated closing current | A | 50kA |
| 12 | 630A operation times | >100 | |
| 13 | 50KA operation times | 5 | |
| 14 | Opening and closing mechanical operation times | 2000 |
Additional information
| Weight | - kg |
|---|---|
| Dimensions | 3600 × 2200 × 2400 cm |
| Capacity (kVa) | 10kVa, 12kVa |
| Shell Material | Stainless Steel |
| Ambient Temperature | -30 ºC,+ 55 ºC |
| Application Range | Power Plants |
| Wind Speed | ≤35m/S |
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Outdoor Prefabricated Box Substation (EU)
- Ambient air temperature: -10℃ ~+40℃
- Altitude: ≤1000m
- Solar radiation: ≤1000W/m²
- Ice cover: ≤20mm
- Wind speed: ≤35m/s
- Relative humidity: Daily average relative humidity ≤95%.Monthly average relative humidity ≤90%
- Daily average relative water vapour pressure ≤2.2kPa. Monthly average relative water vapour pressure ≤1.8kPa
- Earthquake intensity: ≤magnitude 8
- Applicable in the places without corrosive and flammable gas Note: Customized products are available
Outdoor Prefabricated Box Substation (EU)
- The product is connected together by high voltage power distribution equipment,transformer and low voltage power distribution device. And divided into three functional compartments, that is High voltage compartment, Power transformer compartment and Low voltage compartment, have completely HV, LV function.High voltage side of a power supply system, can be arranged in a ring network power supply, end user powersupply, dual power supply and other power supply, also can be provided with the high-voltage metering device to meet high voltage measurement. Transformer room can choose S9, SC and other series of low loss of oil immersed transformer or dry type transformer; low voltage chamber can be panel or cabinet mounted structure based on user requirement to form the power supply scheme required by user. These are power distribution,lighting distribution, Static Var Compensator, energy metering and energy measurement and other function, to meet different requirement of user. This make Power management convenient for users and improve the quality of power supply.
- The high voltage chamber with compact and reasonable structure,has a comprehensive antimis-operation interlock function. It can be equipped with a rail for power transformer when it is required by customer, it can make transformer in and out conveniently in power transformer compartment. Each room has the automatic lighting device, Meanwhile, all elements in high voltage and low voltage cabinet are reliable performance, convenient operation.
- Adopt natural ventilation and the forced ventilation in two ways.There is ventilation channel for power transformer compartment and High, Low voltage compartment. The exhaust fan is provided with a temperature control device, it can automatic startup and shutdown according to the setting temperature.This ensure the normal operation of transformer.
- The enclosure structure can prevent rain and dirt. The material adopt color steel plate and have anti-corrosion insulation function.
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