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High/low voltage pre-installed substation YBP(M)3B-12/0.4

Product Description:

YBP (M) 3B-12/0.4 High/Low Voltage Pre-installed Substation (referred to as Box Substation) is an equipment that high-voltage power collection, transformer voltage reduction, and low-voltage distribution etc are organically combined, installed in a moisture-proof, dust-proof, animal proof, fireproof, anti-theft, heat-insulating, sealed and movable steel box. The function of mechatronics and enclosed operation, especially suitable for urban network construction and transformation, is a new substation after the civil engineering substations.

The box substation has mechanical and electrical interlocking. The substation meets the requirements of "five prevention" and has complete functions of monitoring, control, and protection.

The box substation has the characteristics of strong completeness, small size, compact structure, safe and reliable operation, convenient maintenance, and mobility. Compared with conventional civil engineering substations, box substation of the same capacity usually occupy only 1/10 to 1/5 of the area of conventional substations, greatly reducing design workload and construction costs. In the distribution system, it can be used for ring network distribution systems, as well as dual power or radial terminal distribution systems. It is a new type of complete equipment for the construction and renovation of urban and rural substations.


Technical parameters:

No.

Component name

Unit

Technical parameter

1

Rated frequency

Hz

50

2


Rated voltage

KV

7.2

12

High voltage unit

1min power-frequency withstand voltage

phase-phase, phase-earth

32

42

Isolation fracture

36

48

Lightning impulse withstand voltage(peak value)

phase-phase, phase-earth

60

75

Isolation fracture

70

85

Rated current

A

400

630

Rated short-time tolerant current（2s）

kA

12.5

16

20

Rated peak tolerant current

31.5

40

50

Rated short-time tolerant current of grounding circuit (2s)

12.5×87%

16×87%

20×87%

Rated peak tolerant current of grounding circuit

31.5×87*

40×87%

50×87%

Combination and separation device

Auxiliary and control circuits

Rated voltage

V

DC:110/220    AC:110/220

1min power-frequency withstand voltage

2000

3

Low voltage unit

Rated voltage

V

220

400

1minPower frequency withstand voltage main circuit

main circuit

KV

2.5

Control and metering circuits

2

Control and metering circuits

A

100-2500

Rated short-time tolerant current（1S）

KA

15

30

50

Rated peak tolerant current

30

63

105

Branch current

A

Based on user needs

Compensation capacity

kVar

Based on user needs

4

Transformer

Rated capacity

kVA

30-1600

Impedance voltage

%

4

4.5

6

Tapping range


±2×2.5% or ±5%

Connection Group


Y,yn0 or D,yn11

No-load loss

w

90-2755

Load loss

600-15300

5

Rated housing level


15

6

Protection level


IP33D

7

Noise

dB　

≤50


Technical features and advantages:

a. The pre-installed substations can shorten the construction time and reduce costs.

b. Deeply to load center, the substation can improve power supply quality and reduce line losses.

c. The high voltage room, low voltage room, and transformer room are integrated, occupying a small area.

d. The appearance has various styles and beautiful shapes, which is coordinated with the surrounding environment.

e. The new internal structure achieves organic unity of material conservation and performance improvement, with smooth operation and convenient maintenance.

f. Adopting redundant design, there is a secondary backup interval left in the low-voltage section, which facilitates the installation of power monitoring equipment for the power supply department (such as remote meter reading devices, load control devices, distribution transformer comprehensive testers, etc.). 

g. With over temperature protection function, to protect the safe operation of the transformer.

h. The dedicated pressure relief channel in the high-pressure chamber ensures the safety of nearby personnel in case of internal arc.

i. The shell adopts a fully assembled design. With a brand new shell coating, the company guarantee colourfast in five years and non-corrosion in ten years.

j. Flexible and diverse solutions and designs can meet the diverse needs of users.