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What we can do ? different country different requirement all we can offer.
Mid-voltage ( kV) | 3.6~35kv (E.g. 35,33,24,22,20,18,15.75,13.8,13.2,12,11,10.5,10,7.2,6.6,6.3,6 etc.) |
To Low voltage ( V) | 100-660V (E.g. 100,110,115,120,127,208,200,220,230,240,346,380,400,410,415,440,480,660 etc.) |
Frequency (HZ) | 50Hz or 60Hz |
Ⅰ.Overview
YB-12/0.4-口 High-voltage/Low-voltage Prefabricated Substation (hereinafter referred to as cubicle substation or European cubicle substation) is a kind of compact power distribution device that integrates high-voltage electrical devices with transformer and low voltage electrical devices. It is widely applied to buildings in urban and rural areas, residential communities, high-new-tech development zones, small and medium sized factories, mining areas, oil fields, temporary construction sites and so on, is used for electric energy receiving and distribution in power distribution system.
II. Model and description
Ⅲ.Environmental conditions
1.Ambient temperature: outdoor equipment: -15℃ ~ + 55℃, indoor equipment: -15℃ ~ + 45℃;mean value within 24h should not exceed +35°C;
2.Solar radiation: ≤ 1,000 W/m;
3.Arelative humidity:The average daily relative humidity is not more than 90%(+25 ℃), the average monthly relative humidity is not more than 90%, temperature condensation, may condensation;
4.Altitude: ≤1000m .
5.Earthquake intensity: not exceeding 8 degrees
6.Vibration: horizontal acceleration 0.5g, vertical acceleration 0.2g;
7.Thunderstorm day: heavy minefield (Td> 60);
8.Reice thickness: ≤ 10 mm;
9.Wind speed: The average wind speed is 3.0m/s, and the maximum wind speed does not exceed 35m/ seconds.
10.Daily average relative water vapor pressure is ≤ 2.2kpa, Monthly average relative water vapor pressure is ≤ 1.8kpa;
11.Seismic horizontal acceleration: no more than 0.4m/s, vertical acceleration: not greater than 0.2m/s.
12.The installation site should be no conductive, dusty, hazardous, corrosive, inflammable and explosive materials harmful to 13.metals and insulators.
14.The special working conditions shall be negotiated by the manufacturer and the user and corrected according to the standard.
Ⅳ.Specification
Main technical parameters | |||
HV unit | Rated frequency | Hz | 50 |
Rated voltage | kV | 7.2 12 24 40.5 | |
Rated current of main bus | A | 630 1250 1600 | |
Rated short-time withstand current / duration | kA/s | 20/4 25/3 31.5/4 | |
Rated peak withstand current | kA | 50 63 80 | |
1min power frequency withstand voltage (to-ground/between open contacts) | kV | 32/36 42/48 65/79 95/115 | |
Lightning impulse withstand voltage (to-ground/between open contacts) | kV | 60/70 75/85 125/145 185/215 | |
Rated short-circuit breaking current | kA | 20 25 31.5 | |
Ground loop short-time withstand current / duration | kA/s | 20/2 20/4 | |
Rated short-circuit making current of main loop | kA | 50 63 80 | |
Rated active load breaking current | A | 630 | |
Rated closed loop breaking current | A | 630 | |
Rated transfer current | A | 1700 | |
Mechanical life peroid | times | 3000 5000 10000 | |
LV unit | Rated frequency | Hz | 50 |
Rated voltage | kV | 0.4/0.23 | |
Rated insulation voltage | V | 690 | |
Rated current of main loop | A | 100~3200 | |
Rated short-time withstand current | kA/s | 30/1 50/1 100/1 | |
Rated peak withstand current | kA | 63 105 176 | |
5s power frequency withstand voltage | kV | 2.5 3.75 | |
Transformer unit | Rated frequency | Hz | 50 |
Rated voltage | kV | 7.2 12 24 40.5/0.4 | |
Rated capacity | kVA | 30~1600 | |
1min power frequency withstand voltage | kV | 25/20 35/28 55/50 85/75 | |
Lightning impulse withstand voltage | kV | 60 75 125 170 | |
Impedance voltage | ％ | 4~6 | |
Tapping range | ... | ±×2.5％ ±×5％ | |
Connection group | ... | Y,yn0 D,yn11 | |
Type | ... | Oil-immersed type, dry type | |
Cabinet body | IP code of HV and LV chambers | ... | IP33D |
IP code of transformer chamber | ... | IP23D | |
Sound level (oil-immersed type/dry type) | dB | ≤50/55 | |
Ⅳ.Features
Prefabricated transformer substation Main features
System voltage:12kV(24kV,36kV is available) rated high voltage current:630A or more;
Collocating 3D transformer, reduce loss, upgrade the capability to 11 grade;
Collocating 3D transformer, upgrade insulation heat-resistant to H grade, can work long time in 180 setting;
Collocating 3D transformer, lessen 1/4-1/5 of the box cubage;
Design and make the ring network or users end as to the users requirements;
Design the box to steel plate configuration, complicated configuration or garden landscape configuration as to the users requirement;
Fix auto-parts, realize Three remote, check the data in distant, thief proof and power fare management;
Completely whole set, intelligent, little area, low investment, short project, ingoing load center, energy-saved and the lower loss, convenient assembly, adapted to setting.
Ⅴ.Structure
Prefabricated transformer substation Structure character
1.Small volume, convenient installation and maintenance, low noise, low loss, full protection.
2.Have three enclosure forms: standard type, reinforces type, and integrated type according to low voltage and
feeding requirements.
3.This product is the latest and absorbing foreign advanced technology, combined with domestic actual situation of
research and development, and called Localization of American cabinet.
4.Ring network power supply, double power supply or terminal power supply systems, the substation, power
distribution, metering, compensation, control and protection devices.
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
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