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ZBW3-40.5 prefabricated substation
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1000

ZBW3-40.5 prefabricated substation

The ZBW3-40.5 series of prefabricated substations combine 35kV high voltage electrical, 35/10, (6), (0.4)kV power transformers, 10kV switch cabinets, 0.4kV low voltage cabinets, DC battery screens, and relay protection screens according to the predetermined plan A set of high-voltage substations combined together. There are two types of structure: integral type and split type, which are welded into a frame after protection treatment by section steel, and covered with aluminum alloy plate
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Number of views:
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Product serial number
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Detail
Parameters
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Technical Parameter
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The ZBW3-40.5 series of prefabricated substations combine 35kV high voltage electrical, 35/10, (6), (0.4)kV power transformers, 10kV switch cabinets, 0.4kV low voltage cabinets, DC battery screens, and relay protection screens according to the predetermined plan A set of high-voltage substations combined together. There are two types of structure: integral type and split type. The frame is welded by section steel after protection treatment and covered with aluminum alloy plate; the top of the box is a double-layer hollow structure with a cut slope on the top surface to prevent water accumulation. The surface of the box is coated. The heat dissipation of the power transformer adopts a combination of natural ventilation and forced ventilation; the high and medium voltage switch room adopts air conditioning and anti-condensation devices to control temperature and humidity. Each function room and passage are equipped with lighting lamps for easy operation and observation.

Urban high-rise buildings, urban and rural buildings, residential quarters, stations, docks, ports, parks, shopping malls, high-tech development zones, small and medium-sized factories, mines and oil fields, distributed photovoltaic power stations, temporary construction power and other places.

 
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1)Passed the prototype test at an altitude of 4000 meters;
2)The high-voltage cabinet can adopt overhead or cable entry mode;
3)Compact structure and small size, the area of the product with the same capacity is only 1/10~1/5 of the conventional substation;
4)Anti-corrosion, waterproof, dustproof, fully enclosed, movable, with long-term outdoor use conditions, long service life, beautiful appearance;
5)The intelligent design of the whole station, the protection system adopts the integrated automatic device of the substation microcomputer, and the distributed installation can realize the function of "four remotes";
6)Installed with gas relay, with light gas alarm, heavy gas protection, gas protection for the system;
7)The prefabrication of the factory greatly shortens the construction period of the substation;
8)Prefabricated substations can reduce investment by 40%-50% compared with conventional substations of the same scale;

 

Serial number

Project

Unit

Technical parameter

 

Rated frequency

Hz

50/60

High pressure side

Rated working voltage

kV

45

Rated current of main bus

A

630

1mm power frequency withstand voltage (to ground and phase to phase/isolated fracture)

kV

42/48

Lightning impulse withstand voltage (to ground and phase to phase/isolated fracture)

kV

75/85

Lightning impulse withstand voltage (to ground and phase to phase/isolated fracture)

kA/s

25/2

 

Rated peak withstand current

kA

63

Low pressure side

Rated voltage

kV

0.4

Rated current of main circuit

A

100~4000

Rated ultimate short-circuit breaking capacity

kA

80

Rated short-circuit breaking capacity

kA

50(63)

Rated short-time withstand current

kA/1s

50(63)

transformer

Rated Capacity

kVA

50~20000

Impedance voltage

 

4%

4.5%

High voltage tapping range

 

±2×2.5%

±5%

Connection group

 

Yyn0

Dyn11

Box

Enclosure rating

 

IP23

Noise level

dB

≤50

Ningbo Tianan (Group) Co., Ltd. was founded in 1969, covers an area of 1298 acres, more than 1800 employees. Is a focus on smart grid, "new infrastructure", "integrated smart energy" and other fields of power distribution switching equipment research and development, production, sales and service of the national key high-tech enterprises.

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