Kiosk-type complete transformer substations of KTPK series
Kiosk-type package transformer substations KTPK and KTPKm, with capacities from 25 to 1000 kVA, are intended for the reception, transformation, and distribution of three-phase AC electric power of 50 Hz commercial frequency and used for supplying electric power to rural facilities, individual residential settlements, and industrial projects.
KTPK and KTPKm are designed to operate under the following conditions:
- altitude above sea level: no more than 1000 m;
- ambient temperature: from -45° С to +40° С for the climatic category and placement category U1; from -60° С to +40° С for the climatic category and placement category UKhL1* according to GOST 15150-69 and GOST 15543.1-89 (NF1 according to IEC);
- environment: industrial atmosphere of category II according to GOST 15150-69 (non-explosive, containing no reactive gases and vapors in the concentration that may cause drop of package transformer substation’s parameters to inadmissible values);
- wind speed: up to 36 m/s (with wind pressure up to 800 Pa) in the absence of glaze ice;
- wind speed: up to 15 m/s (with wind pressure up to 146 Pa) at ice thickness of up to 20 mm.
Classification criteria of KTPK and KTPKm.
Classification of the KTPK design must conform to those specified in the table below.
|
Criteria of classification
|
KTPK
|
KTPKm
|
|---|---|---|
|
Type of substation
|
single-ended
|
|
|
By the type of the power transformer
|
with oil-immersed type; with dry-type
|
with oil-immersed type
|
|
By the type of the transformer neutral at the low-voltage side
|
with dead-earthed neutral
|
with dead-earthed neutral
|
|
By the make of the high-voltage bushing
|
cabled-type (K); aerial-type (V)
|
aerial-type (V)
|
|
By the make of the cable outlets in the low-voltage switchgear
|
downward outlet
|
downward outlet
|
|
upward outlet
|
upward outlet
|
|
|
By the way of installation of automatic circuit breakers
|
with fixed circuit breakers
|
with fixed circuit breakers
|
* according to the recommendations of transformer manufacturers, U1 version transformers are allowed to be used for 10/0.4 package transformer substations of UKhL1 (NF1 as per IEC) version. The manufacturers guarantee their safe operation at a temperature of down to -60° C, but their start-up should be done at a temperature of not lower than -45° C. Otherwise, the oil should be heated or replaced for arctic-type one.
Basic parameters of the KTPKm series substation conform to those specified in the table below:
|
Parameter name
|
Value
|
||||
|---|---|---|---|---|---|
|
KTPKm
|
|||||
|
Power transformer capacity, kVA
|
25
|
40
|
63
|
100
|
160
|
|
High-voltage bushing (V – aerial type)
Low-voltage lead (V – aerial type, K – cabled type)
|
VK
VV
|
||||
|
Overall dimensions:
- length
- width
- height
|
1600
1620
4500
|
||||
|
Weight, no more than, kg
|
1250
|
1300
|
1370
|
1450
|
1600
|
Basic parameters of the KTPK series substation conform to those specified in the table below.
|
Parameter name
|
Value
|
|||||||||
|
up to 400 kVA KTPK
|
||||||||||
|
Power transformer capacity, kVA
|
25
|
40
|
63
|
100
|
160
|
250
|
400
|
|||
|
Rated voltage on the HV side, kV
|
6; 10
|
|||||||||
|
Maximum operating voltage on the HV side, kV
|
7.2; 12
|
|||||||||
|
Rated voltage on the LV side, kV
|
0.4
|
|||||||||
|
Short-time thermal current on the HV side, kA (during 1 sec)
|
20
|
|||||||||
|
Short-time electrodynamic current on the HV side, kA
|
51
|
|||||||||
|
Short-time thermal current on the LV side, kA (during 1 sec)
|
10
|
|||||||||
|
Short-time electrodynamic current on the LV side, kA
|
25
|
|||||||||
|
Resistance of low-voltage switchgear circuit insulation, MΩ
|
1
|
|||||||||
|
Resistance of high-voltage device circuit insulation, MΩ
|
1000
|
|||||||||
|
Insulation level according to GOST 1516.3-96:
- with oil-immersed transformer
- with dry-type transformer
|
- standard insulation
- thinned insulation
|
|||||||||
|
Protection rating according to 14254-80
|
IP34
|
|||||||||
|
Rated current of the 6 kV safety device
|
8
|
10
|
16
|
20
|
31.5
|
50
|
80
|
|||
|
Rated breaking current of the 6 kV safety device
|
20
|
40
|
40
|
40
|
31.5
|
31.5
|
31.5
|
|||
|
Rated current of the 10 kV safety device
|
5
|
8
|
10
|
16
|
20
|
31.5
|
50
|
|||
|
Rated breaking current of the 10 kV safety device
|
31.5
|
31.5
|
31.5
|
31.5
|
31.5
|
31.5
|
31.5
|
|||
|
Weight, no more than, kg
|
1990
|
2140
|
2240
|
2900
|
||||||
|
Parameter name
|
Value
|
|||||||
|
up to 1000 kVA KTPK
|
||||||||
|
Power transformer capacity, kVA
|
160
|
250
|
400
|
630
|
1000
|
|||
|
Rated voltage on the HV side, kV
|
6; 10
|
|||||||
|
Maximum operating voltage on the HV side, kV
|
7.2; 12
|
|||||||
|
Rated voltage on the LV side, kV
|
0.4
|
|||||||
|
Short-time thermal current on the HV side, kA (during 1 sec)
|
20
|
|||||||
|
Short-time electrodynamic current on the HV side, kA
|
51
|
|||||||
|
Short-time thermal current on the LV side, kA (during 1 sec)
|
10
|
20
|
||||||
|
Short-time electrodynamic current on the LV side, kA
|
25
|
50
|
||||||
|
Resistance of low-voltage switchgear circuit insulation, MΩ
|
1
|
|||||||
|
Resistance of high-voltage device circuit insulation, MΩ
|
1000
|
|||||||
|
Insulation level according to GOST 1516.3-96:
- with oil-immersed transformer
- with dry-type transformer
|
- standard insulation
- thinned insulation
|
|||||||
|
Protection rating according to 14254-80
|
IP34
|
|||||||
|
Rated current of the 6 kV safety device
|
31.5
|
40
|
50
|
100
|
160
|
|||
|
Rated breaking current of the 6 kV safety device
|
31.5
|
31.5
|
31.5
|
31.5
|
20
|
|||
|
Rated current of the 10 kV safety device
|
20
|
31.5
|
40
|
80
|
100
|
|||
|
Rated breaking current of the 10 kV safety device
|
31.5
|
31.5
|
31.5
|
20
|
20
|
|||
|
Weight, no more than, kg
|
3840
|
4090
|
4410
|
4900
|
5740
|
|||
See more about 10 kV complete transformer substations of KTP series.