High Capacity 7000kVA Power Transformer Modular Power Distribution Cabinet
Product Description
The YB preinstalled substation is composed of the high-voltage switchgear, low-voltage distribution panel, distribution transformer and enclosure. The high-voltage switchgear adopts air load switch and the transformer is dry-type or oil immersed type. The substation adopts good ventilation structure with elegant appearance and good heat-insulating performance. The temperature rise of the compartments caused by the outdoor solar radiation can be reduced to within the lowest limits on account of the upper and lower ventilation windows. The forced ventilation device and the temperature auto-controlled device should be installed in the substation. The systems of control, protection, live display and the lighting are equipped in each separate unit.
This substation fulfills the functions such as transformation of energy, distribution, transmission, metering, compensation, system control, protection and communication.
Technical Parameter:
| No. | Items | Unit | Value | ||
| 1 | Rated voltage | Primary | kV | 40.5 | |
| Secondary | 2;0.69 | ||||
| Subsidiary circuit | V | 110;220;380 | |||
| 2 | Rated current | High voltagecircuit | A | 400~1250 | |
| Low voltage circuit | 630~3150 | ||||
| 3 | Rated frequency | Hz | 50 | ||
| 4 | Rated power | kVA | 1250;1600;2000~20000 | ||
| 5 | Rated insulation level | High voltageside | Power frequency | 95 | |
| mpact | 185 | ||||
| Low voltage side | Power frequency | 42 | |||
| mpact | 75 | ||||
| 6 | Rated short time withstand current | High voltageside | kA | 20;25;31.5 | |
| Low voltage side | 25;31.5;40 | ||||
| 7 | Rated peak withstand current | High voltageside | 50;63;80 | ||
| Low voltage side | 63;80;100 | ||||
| 8 | Insulation level of transformer | Power frequency | kV | 65 | |
| Impact | 185 | ||||
| 9 | Insulation level of subsidiary circuit | 2 | |||
Product Overview
YB¨-12/0.4 ( F.R ) High and low votage prefabricated substations ( European ) are widely used in urban power gridreconstruction, residential quarters, high-rise bulldings, industrial and mining operations, hotels, shoppingmalls, airports, railways, oil fields, terminals, highways And indoor and outdoor places such as temporary powerfacilities.
This product meets the following standards :
GB/T17467-1998《High voltage/low voltage prefabricated substation 》DL/T537-93 (Technical Conditions for Ordering 6-35kV Box-type Substation》
Model meaning:
Conditions of use:
The altitude does not exceed 2000m:
Ambient temperature:-25℃~+40℃;
Relative humidily: at 25 ℃ , the dally average is not more than 95%, and the monthly average is not more than 90%;installation site: no fire, explosion hazard, conductive dust, chemical corrosive gas and severe vibration. if the aboveonditions are exceeded, the user can consult our company.
Load switch technical conditions:
| Project | Unit | FKN12-12 Load switch |
FZN25-12 Vaduumload switch |
|
| Rated voltage | kV | 10 | ||
| Maximum working voltage | kV | 12 | ||
| Rated frequency | Hz | 50 | ||
| Rated current | A | 630 | ||
| Rated breaking load current | A | 630 | ||
| Thermally stable current(effective value) | kA/S | 20/2 | 20/4 | |
| Dynamic steady current | kA | 50 | 50 | |
| Short circuit closing current(peak) | kA | 50 | 50 | |
| Full load breaking times | 次 | 20 | 10000 | |
| Mechanical lifeimin | 次 | 2000 | 10000 | |
| 1min Power frequency withstand voltage(interphase and ground) |
kV | 42 | 42 | |
| Lightning impulse voltage(relative to ground) | kV | 75 | 75 | |