YB-10 (40.5) kV photovoltaic boost substation
Short Description:
The high pressure chamber of the European type box transformer is generally composed of high voltage load switch, high voltage fuse and lightning arrester, etc., which can carry out power stop operation and have overload and short circuit protection. The low-voltage chamber is composed of low-voltage air switch, current transformer, ammeter, voltmeter and so on. Transformers are generally S9 or dry type, etc.
Detail
The high pressure chamber of the European type box transformer is generally composed of high voltage load switch, high voltage fuse and lightning arrester, etc., which can carry out power stop operation and have overload and short circuit protection. The low-voltage chamber is composed of low-voltage air switch, current transformer, ammeter, voltmeter and so on. Transformers are generally S9 or dry type, etc.
Using the environment
◆ Altitude: ≤2000m(more than 2000m need to reduce capacity for use, manufacturing contact with the factory);
◆ ambient temperature: -40℃~+55℃;
◆ Temperature: maximum monthly average temperature +30℃, maximum annual average temperature +35℃;
◆ Relative humidity: daily average ≤95%, monthly average ≤90%;
◆ Shockproof level: horizontal acceleration 0.4m/s², vertical acceleration 0.15m/s²;
◆ Installation location: no violent impact, serious pollution and chemical corrosion, no conductive dust and explosion danger places.
◆ When can not meet the normal use conditions, please consult with our company to solve.
Features of product structure drawing
Pieces change the basic structure of the box is divided into “eye” and “product” glyph, glyph skeleton box body is made of high quality channel steel and Angle steel welded together, has high mechanical strength, the box body made of aluminum alloy profile has good anticorrosion ability, beautiful appearance after spray paint color can be in harmony with the surrounding environment, designed at the bottom of the lifting device, to install mobile provides great convenience of transportation.
◆ The box transformer has an independent high voltage room, transformer room and low voltage room, each room lighting automatically open with the door opening.High voltage room is equipped with high voltage ring network switch equipment, according to user needs to choose pressure/vacuum type load switch, and has the function of “five prevention”, when the current limiting high voltage fuse is used, when a phase fuse is broken, the load switch automatically split, to avoid the fault caused by the lack of phase operation.
Pieces transformer chamber adopts natural ventilation and automatic control of forced cooling air cooling device, varies with changes in temperature and exhaust system of automatic control, control can effectively reduce the temperature in the cabinet, to meet operation requirements, according to user requirements can also adopt the condensation prevention device, according to the requirements of users, is along the track can be conveniently from the pressure chamber between the both sides from the gate in and out.The box material can prevent rainwater and dirt from entering, with long-term outdoor use conditions, ensure anti-corrosion and waterproof, dustproof performance, long service life, simple maintenance, beautiful appearance.
◆ Transformer can be used dry type or oil-immersed transformer, oil-immersed transformer can choose two kinds of oil pillow and oil-free pillow fully sealed.
◆ Low voltage chamber has the overall function of low voltage switchgear, for users to choose, any combination.
◆ Shell material: shell materials are composite plate, stainless steel composite plate, aluminum zinc plate, stainless steel plate, metal carved plate.
◆ Structure features: high pressure structure reasonable and compact, can choose SF6, FZN57, VHC.KYN28 center cabinet and ring network cabinet all have five-way interlocking function.
Transformer natural ventilation and automatic ventilation cooling system can be applied to dry and oil immersed transformers.◆ Low voltage room: according to user requirements using a variety of structure of power distribution scheme, power distribution, lighting distribution, automatic compensation of reactive power, electric energy metering and other functions, equipped with automatic lighting system.
Model
Main technical parameters:
| Name | Unit | High voltage apparatus | Transformer | Low voltage electrical apparatus | |
| 1 | Rated voltage | kV | 10（40.5)/（0.4，0.69,0.8) | 0.4，0.69,0.8 | |
| 2 | rated capacity | kVA | 50-6300 | ||
| 3 | Rated current | A | 200/400/630 | 250-3150 | |
| 4 | Rated short circuit breaking current | A | Load switch400-630 or Circuit breaker630A | ||
| KA | Combination switch depends on the fuse or circuit breaker | ||||
| 5 | Rated short-time tolerable current | kA | 16, 20(4s) | 15(1s) | |
| 30(1s) | |||||
| 6 | Rated peak tolerable current | kA | 31.5, 50 | 30 | |
| 63 | |||||
| 7 | Power frequency withstand voltage | kV | Relative to ground and phase 68/32/42 | 20/35(oil) | |
| isolating fracture 100/36/48 | 20/28(dry) | ||||
| 8 | Lightning shock voltage (peak) | kV | Relative to ground and phase 60/75 | 60/75 | |
| isolating fracture 70/85 | |||||
| 9 | Box protection level | IP54 | |||
| 10 | Noise level | db | 55 | ||
| 11 | executive standard | GB/T17467-1998《High voltage and low voltage preinstalled substation》 | |||
| DL/T537-93《Ordering technical conditions for 6-35kV box substation》 |
