4. WDQXB series intelligent box-type DC traction substation

product introduction:
WDQXB series intelligent box-type DC traction substation is widely used in mining locomotive traction, rail transit, urban tram, trolley bus and other industries DC traction power supply system. The realization of 35kV and below high voltage to DC1800V and AC 0.4kV power distribution is an efficient alternative to traditional civil substation. The high-voltage switchgear, rectifier transformer, distribution transformer, rectifier cabinet, DC cabinet, low-voltage cabinet acc

product introduction:

WDQXBseries intelligent box type DC traction substation is widely used in mine locomotive traction, rail transit, urban tram, trolley bus and other industries DC traction power supply system. Implementation35kVand below high voltageDC1800VandAC 0.4kVpower distribution is an efficient alternative to traditional civil substation. The high-voltage switchgear, rectifier transformer, distribution transformer, rectifier cabinet, DC cabinet, low-voltage cabinet according to the wiring scheme, in the factory to complete the integration, pre-assembly, commissioning and packaging in a fully enclosed metal box compact complete sets of power distribution facilities.

product features:

  1. investment and operation and maintenance costs: reduced civil construction costs, high integration;
  2. Short construction period and low land occupation: realize rapid construction and commissioning, shorten the project cycle and improve efficiency; The land occupation is only 1/5~1/10 of the traditional civil engineering station;
  3. Environmental adaptability: fully enclosed shell, can be in the outdoor cold, hot and humid, coastal salt spray environment stable operation;
  4. is safe and reliable: the shell is grounded, there is no exposed charged body, and the design of fire prevention and condensation prevention is perfect;
  5. : Intelligent monitoring and management system, real-time monitoring of equipment operating status, temperature, current, voltage and other parameters, with fault warning and remote diagnosis function, to achieve remote operation monitoring, unattended.

technical parameters:

Project

Unit

parameters

Rated voltage

AC side

kV

12

35

DC side

V

DC900

DC1800

DC900

DC1800

auxiliary circuit

V

AC 220V,36V,380V;DC 220V,110V,24V

Rated capacity of transformer

Single rectifier transformer

kVA

630,800,1000,1250,1600,2000,2500

Single station transformer

kVA

30,50

Rated frequency

Hz

50

Rated insulation level

kV

Between poles, to ground

isolation fracture

Between poles, to ground

isolation fracture

High Voltage AC Switchgear

Power frequency withstand voltage (1min)

42

48

95

118

Rated impulse withstand voltage

75

85

185

215

DC switchgear

Nominal voltage

kV

0.75

1.50

0.75

1.50

Rated voltage

0.90

1.80

0.90

1.80

Power frequency withstand voltage (1min)

6.9

8.3

9.2

11

Rated impulse withstand voltage

15

18

20

24

Auxiliary control loop

Power frequency withstand voltage (1min)

kV

2

Rated current

A

HV AC side: ≤1250, DC side: ≤4000

protection level

IP54

Product Details

Products

Pre-assembled DC traction solution for surface mining transportation