KTP are complete transformer substations that are used to convert the current of the high-voltage network. Now you know how the abbreviation KTP is deciphered, let's see in more detail what it is.
Typically, such transformer substations are metal constructions, are completed with the transformer with power not less than 25 kilowatts and no more than 4000. In order for the QFT to work, a grounded neutral is necessary. You can use them almost everywhere - from small industrial facilities to small towns, as well as agricultural facilities.
- 1 Purpose of transformer substations
- 2 Technical conditions
3 Types of transformer stations
- 3.1 General information about transformer stations
4 KTPP and KTPSN devices
- 4.1 KTPNU in modular execution
Purpose of transformer substations
At the very beginning, the package transformer substation processes the high-voltage current, after which it distributes electrical energy from about 6 kilowatts of frequency on the high voltage side and on the low voltage side with a frequency of about 0.4 kilowatt. With the help of the outgoing line, the supply of electricity to the consumer is converted.
These substations are the most reliable compared to others because they have protection provided in order to prevent the occurrence of abnormal situations. There are also doors for very fast and convenient maintenance.
Integrated transformer substations are designed to receive, distribute and convert AC electric power. Specifications KTP:
- The ambient temperature should be approximately -40 to +40 degrees for the oil transformer and -1 to +40 degrees for the dry transformer.
- KTP must be installed so that it does not exceed more than 1000 meters above sea level.
- The ambient air humidity should be somewhere around 20 degrees Celsius.
- The environment should not be flammable.
- Headwind speed - no more than 36 meters per second.
- Service life is over 25 years.
Types of transformer stations
To date, there are many types of QFT. The first type of substations - dead-end, they have a connection to only one high-voltage transmission line. The second type - walk-through stations, they are connected to two lines. The third type - kiosk stations, is the most common type of substation. Usually the body is made from very strong metalwhich has high safety record.
One more type of KTP is the warmed substations, in another way they are called so KTPNU. Their body is sheathed with special panels, which are called sandwiches. Thanks to them, substations have excellent protection under severe climate conditions. They are distributed throughout Russia.
General information about transformer stations
KTP are usually used in all systems of electric supply of consumers for own needs, the industrial enterprises and objects for production. If we consider 2 complete transistor substations, then we need to understand that they include two KTPs themselves, as well as a sectional cabinet, which can even have two inputs from diesel power plants.
Environmental requirements should be as follows:
- Non-explosion hazard
- It is necessary to exclude the content of caustic gases and vapors that destroy the insulation.
- The content of conductive dust should be excluded.
Decoding symbols: 2KTP-1000M / 10 / 0.4-UZ
2KTP - substation for industrial use two-transformer.
1000 is the given power of the transformer that is used.
M - type: M - oil, C - dry.
10 - voltage on the high voltage side - kV.
0.4 - voltage on the low voltage side - kV.
UZ - means a climatic modification (At means a moderate climate) and a category of placement.
KTPP and KTPSN devices
KTPP and KTPSN are usually made and delivered by special transport groups on separate parts which are prepared for assembly already on site. In such cases apply the scheme with one busbar system, it is partitioned using a section switch. As a rule, the sections operate separately and the switch is off. In the event that one of the feeding lines is disconnected and the feeding section is de-energized, the power supply to the entire section is automatically stopped and restored only when the AVR.
KTPNU in modular execution
With modular design available just one transformer. This type of substation is necessary in order to install them outdoors. They are made from several modules. Floors and walls are sheathed with a special material. Modules are compartments that place higher, lower voltage equipment and station control equipment.