4. WDQXB series intelligent box-type DC traction substation
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:
- investment and operation and maintenance costs: reduced civil construction costs, high integration;
- 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;
- Environmental adaptability: fully enclosed shell, can be in the outdoor cold, hot and humid, coastal salt spray environment stable operation;
- 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;
- : 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 |
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|
Rated voltage |
AC side |
kV |
12 |
35 |
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|
DC side |
V |
DC900 |
DC1800 |
DC900 |
DC1800 |
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|
auxiliary circuit |
V |
AC 220V,36V,380V;DC 220V,110V,24V |
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|
Rated capacity of transformer |
Single rectifier transformer |
kVA |
630,800,1000,1250,1600,2000,2500 |
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Single station transformer |
kVA |
30,50 |
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Rated frequency |
Hz |
50 |
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Rated insulation level |
kV |
Between poles, to ground |
isolation fracture |
Between poles, to ground |
isolation fracture |
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High Voltage AC Switchgear |
Power frequency withstand voltage (1min) |
42 |
48 |
95 |
118 |
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Rated impulse withstand voltage |
75 |
85 |
185 |
215 |
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|
DC switchgear |
Nominal voltage |
kV |
0.75 |
1.50 |
0.75 |
1.50 |
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|
Rated voltage |
0.90 |
1.80 |
0.90 |
1.80 |
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|
Power frequency withstand voltage (1min) |
6.9 |
8.3 |
9.2 |
11 |
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Rated impulse withstand voltage |
15 |
18 |
20 |
24 |
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Auxiliary control loop |
Power frequency withstand voltage (1min) |
kV |
2 |
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Rated current |
A |
HV AC side: ≤1250, DC side: ≤4000 |
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protection level |
IP54 |
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System and software products
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Communication equipment set
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DC integrated equipment
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Communication switch electrical components
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DC switchgear components
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ꄶ Mechanical and Electrical Equipment Control Box
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Medium-pressure protection device
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ꄶ Circuit breaker accessories
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ꄶ Low-voltage protection device
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ꄶ Electrical fire protection device
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ꄶ Multifunctional instrument
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ꄶ Intelligent integrated device
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Communication device
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Current transformer