English На русском Ўзбекча

News:

  • Реализация социального проекта установки солнечных электростанций в отдаленных кишлаках

    от (3:44 PM, 07/07/2017)
    Реализация социального проекта установки солнечных...read more
  • 2016 йил якунлари бўйича чоп этилган ҳисобот.

    от (3:35 PM, 07/07/2017)
    2016 йил якунлари бўйича чоп этилган ҳисобот.read more
  • Опубликована отчётность по итогам 2016 года

    от (3:33 PM, 07/07/2017)
    Опубликована отчетность по итогам 2016 года. read more

Search:

Explosion-proof package transformer substation of KTPV series

The KTPV series explosion-proof package transformer substation (hereinafter referred to as “substation”) is designed for supplying three-phase power to the electrical equipment installed in underground openings that are dangerous in gas (methane) and/or dust as well as for ensuring leakage-current protection and maximum overcurrent protection of low-voltage lines.

Explosion-proof package transformer substation of KTPV series

 Interpretation of reference designation:

Explosion-proof package transformer substation of KTPV series. Interpretation of reference designation
 

Technical specifications of the KTPV series substation of 6 kV voltage class: 

Power substation, kVA
Overall dimensions, LxWxH, mm
Weight, kg
Frequency, Hz
Number of phases
Voltage, kV
Winding circuit and vector group
Short-circuit voltage, %
HV
LV
100
3175х950х1150
2300
50
3
6
0.4; 0.69
Yd11;
Yy0
4
160
3385х950х1250
2905
250
3460х950х1250
3150
400
3550х950х1350
3625
630
3765х950х1495
4560
0.69
1.2
1000
4015х1110х1565
6480

Technical specifications of the KTPV series substation of 10 kV voltage class: 

Power substation, kVA
Overall dimensions, LxWxH, mm
Weight, kg
Frequency, Hz
Number of phases
Voltage, kV
Winding circuit and vector group
Short-circuit voltage, %
HV
LV
400
3695х1180х1410
4270
50
3
10
0.4; 0.69
1.2
Yd11;
Yy0
4
630
3695х1180х1500
5500
1000
1205х1180х1680
7090

Substation operating conditions:

  1. climatic category according to GOST 15150-69: UKhL5 (NF5 as per IEC);
  2. altitude above sea level: no more than 1000 m;
  3. ambient temperature: from -10º C to +35º C; 
  4. relative ambient air humidity: up to 95% at 25° C; 
  5. without jerks and bumps; 
  6. environmental dust condition: no more than 1000 mg/m3
  7. operating position in space: horizontal; departure from the operating position is permissible to any direction for up to 15°.

Others technical specifications:

  1. Protection rating is IP54.
  2. Type of explosion protection of the power transformer compartment and high-voltage switchgear of the substation is RV-4V (PB Exdial).
  3. Type of explosion protection of the low-voltage switchgear of the substation is RV-ZVIa (Exdial)
  4. At the high-voltage side of the substation, change of the transformer ratio by ±5% is provided for.
  5. At the low-voltage side of the substation, there is an access to switchover of the power transformer winding circuit and vector group.

KTPV series substation component parts and principle of operation:

The substation is composed of the power transformer compartment, high-voltage and low-voltage switchgears (RUVN and RUNN respectively), and undercarriage.

Primary voltage is fed to the power transformer compartment through a vacuum circuit breaker by closing the RUVN high-voltage switchgear disconnector. The power transformer transforms the electric power voltage and transmits to the RUNN low-voltage switchgear that distributes the voltage of electric power and transmits to consumers.

The RUNN low-voltage switchgear is not completed with an automatic circuit breaker since the protection of the outgoing line and the substation itself is provided on the RUVN high-voltage switchgear side by means of a high-voltage vacuum circuit breaker and integrated microprocessor-based protection and control unit.

In the event of overload, short circuit, leakage current, overvoltage, undervoltage or other failures in the system, the

RUNN low-voltage switchgear’s microprocessor-based unit will send the information on such a failure to the screen with simultaneous sending a signal to the RUVN high-voltage switchgear’s microprocessor-based unit, which will cause immediate deenergization of the power transformer by means of the vacuum circuit breaker; thus, protection of not only the consumer supply line but also the substation as a whole is provided.

The KTPV series substation is made in accordance with the Corporate Standard Ts 00212883-022:2014.