KTP
Complete transformer substations (KTP) are installations that receive voltage of 6–10 kV and transform it to the consumer level (400 V) with subsequent distribution over the household network. They are installed in the following zones:
The substation body is made of metal with an anti-corrosion coating. The safety of the KTP is ensured by lightning protection, fire extinguishing and grounding systems. The basic substation has compartments for a dry transformer with cast insulation (TLS), a high-voltage switchgear (RUVN) and a low-voltage switchgear (RUNN).
Requirements for the placement of transformer substations
The location for the complete substation is chosen so that it is located as close as possible to the load center. This allows reducing the cost of consumables (wires, cables, etc.) and energy losses. According to the location, KTPs are divided into four main types:
In order to minimize losses, industrial networks with a voltage of 6–10 kV are recommended to be equipped with the equipment of the last two categories. For multi-span production facilities, the best option is the intra-shop type of complete transformer substations. They are usually mounted near columns or in areas inaccessible for crane operation.
OUR OFFER
The electrical engineering company "Kaz Electro Snab" sells KTP with a capacity of up to 6300 kVA at reasonable prices. Delivery is carried out to all regions of Kazakhstan and the CIS. Our range includes complete transformer substations in the following design:
All equipment of the transformer substation is installed at our enterprise and is delivered to the site ready-made. At the customer's request, the transformer substation can be equipped with additional options:
With us you can buy a transformer substation at an affordable price.
Parameters
|
No. |
PARAMETER NAME |
PARAMETER VALUE |
|
1 |
1 Power transformer capacity, kVA |
1 group: 25; 40; 63; 100; 160; 250 |
|
2 |
Nominal voltage on the HV side, kV |
6;10 |
|
3 |
Maximum working voltage, kV |
7.2; 12 |
|
4 |
Nominal voltage on the LV side, kV |
0.4; 0.69 |
|
5 |
Nominal voltage of auxiliary circuits:
|
12; 24; 36; 42; 110; 220; 380 |
|
6 |
Rated current of busbars on the HV side, A |
630; 1000; 1600; 2000; 2500; 3150 |
|
7 |
Rated current of busbars on the LV side, A |
630; 1000; 1600; 2000; 2500; 3200;4000; 5000; 7200; 8000 |
|
8 |
Thermal withstand current for 1 s on the HV side, kA |
6.3; 8; 10; 12.5; 16; 20; 25; 31.5 |
|
9 |
Thermal withstand current for 1 s on the LV side, kA |
25 |
|
10 |
Electrodynamic withstand current on the HV side, kA |
16; 21; 26; 32; 41; 51; 64; 81 |
|
12 |
Frequency of alternating current of main and auxiliary circuits, Hz |
50; 60 |
|
13 |
Withstand test voltage of main circuits, kV |
32, 42 |
|
14 |
Withstand test voltage of auxiliary circuits, kV |
2 |
|
15 |
Short-circuit voltage from nominal value, % |
6 |
|
16 |
Insulation resistance of input circuits from the HV side, not less than, MOhm |
100 |
|
17 |
Insulation level according to GOST 1516.3-96:
|
normal insulation |
|
CLASSIFICATION FEATURES OF KTP |
EXECUTION |
|
1 |
2 |
|
1 By type of power transformer |
|
|
2 By the method of making the transformer neutral on the LV side |
|
|
3 By placement |
|
|
4 By the number of power transformers used |
|
|
5 Presence of busbar insulation in the switchgear |
|
|
6 On the implementation of high-voltage input |
|
|
7 On the implementation of terminals (buses and cables) in the RUNN |
|
|
8 By type of shell and degree of protection |
protection level according to GOST 14254-80; not lower than IP31 |
|
9 By the method of installation of circuit breakers |
|
|
10 By appointment of the KTP |
|
|
11 By manufacturing method |
|
KTP production
Environmental safety . The substation is equipped with TLS transformers with air cooling. There is no risk of technical oil leakage and environmental pollution.
Fire safety . Transformer insulation is made of non-flammable dielectric that does not support or spread combustion. Therefore, such substations can be located near residential buildings.
Reliability . KTP from Kaz Electro Snab can withstand seismic impacts of up to 9 points on the MSK-64 scale. All types of products are certified and comply with ISO 9001:2008 and GOST 14695-80.
Economy . KTPs have an increased service life, due to which they require less maintenance. This allows reducing personnel costs. An additional factor of savings is the reasonable prices of our equipment.
Resistance to adverse factors . KTPs retain their operational characteristics at temperatures from -60 to +50 ° C and humidity of 80–95% (at +25 ° C). Substations withstand significant wind loads – up to 146 Pa with ice and up to 800 Pa without it.
Variety of designs . We sell transformer substations of the following types: kiosk (KTPK), insulated (KTPNU), mast (KTPM), pole (STP), indoor installation (KTPSN). It is also possible to manufacture non-standard KTP options according to customer requirements.
We will manufacture a block-modular complete transformer substation of any complexity in the shortest possible time,
we work without intermediaries, we have our own workshop.
Therefore, we control the entire process ourselves from design, installation and delivery.
Service life up to 25 years.
To find out the price and approximate rates, leave a request, and our managers will advise you.
Delivery is carried out to all regions of the CIS and Kazakhstan.
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