6, 10, 35 kV Packaged transformer substations, type КТП-25…2500/6(10)/0,4-У1

The substations are designed for receiving electric energy of three-phase AC 50Hz, rated voltage of 6 (10, 35) kV, its conversion to 0.4 kV voltage and distribution to consumers.
Packaged transformer substations are intended for power supply of industrial enterprises, public buildings and facilities in rural areas, for outdoor installation.

КТП technical parameters

     The parameter name

    The parameter value

 The rated higher voltage (HV),  kV

 6; 10

 The rated lower voltage (LV),  kV

 0,4

 The rated peak withstand current on HV side, kA

 51

 The rated thermal current on HV side, kA

 20

 The rated capacity of power transformer, kVA

 25, 40, 63, 100, 160, 250, 400, 630,  1000, 1600, 2500

 The rated peak withstand current on LV side, kA

 51

 The rated thermal current on LV side, kA

  20   50   100

 The kind of the insulation

 Air

 The protection degree as per GOST 14254-96

 IP 31 ,  IP 54

 Climatic composition as per GOST 15150-69

 У1 ,  УХЛ1

 Altitude

 Up to 1000m.


Symbol structure
ХКТПХХ-Х-ХХХХ /ХХ/0,4  Х/Х-У1
1     2  3    4     5   6    7   8
1 – The Number of transformers applied.
2 -  The Literal marking of the product (packaged transformer substation - industrial).
3 -  The Modification.
4 -  The Power transformer capacity, kVA.
5 -  The transformer voltage class, kV.
6 -  The rated voltage on LV side, kV.
7 -  The Inlet / outlet types: В- air, К- cable.
8 -  The Climatic composition and accomodation category as per ГОСТ 15150-69.
The marking of a different КТП performances:
1 – КТПГС   (Packaged transformer substation for urban mains).
2 – КТПН     (Packaged transformer substation for outdoor installation).
3 – КТПМК  (Packaged transformer substation, masted, kiosk-type).
4 – КТПК     (Packaged transformer substation, kiosk-type).
5 – КТПМ     (Packaged transformer substation, masted).
6 – БКТП      (Packaged transformer substation, modular).
7 – ПКТП     (Packaged transformer substation, mobile).