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YBM Box Substation

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Product Overview:

YB series pre-installed substation (also known as box type substation) is a kind of high voltage distribution device, power transformer, low voltage distribution

The three parts of the electric device are tightly combined in one or several boxes according to a certain circuit scheme. This family of products are applicable

In outdoor and indoor installation, widely used in industrial and mining enterprises, residential areas, high-rise buildings, stations, docks, temporary work sites, etc

. With small size, compact structure, beautiful shape, convenient maintenance, short installation and debugging cycle, no special person on duty, economic effect

Benefit higher characteristics. In particular, it can go deep into the load center, to improve the quality of power supply, reduce power loss, and enhance the power supply system

The safety and reliability of the distribution network road transformation are very important.

This series of products comply with GB / T17467-1998 High-voltage and LV Pre-mounted Substation, QB / DQ9466-88 Basic Test Method of Low-voltage Complete Switchgear, DL / T537-

93 "6~35kV box substation order technical conditions", IEC1330 and other relevant standard requirements.

design feature:

1. The box frame structure of this series of products is composed of channel steel, section steel and Angle steel, which has high mechanical strength and can be hoisted and transported as a whole.

2, the shell according to the customer needs can respectively choose color steel composite plate, stainless steel plate, aluminized zinc plate + pressure immersion paint board or glass fiber cement material. The product is beautiful and good

Good anticorrosion, heat insulation, noise reduction performance.

3. Each room is separated into separate rooms by partition board, and the transformer room is equipped with automatic condensation temperature control and exhaust device.

4. In order to facilitate monitoring and maintenance, the transformer room, low voltage room and high voltage room are equipped with lighting devices.

technical parameter:

Unit name	project	unit	parameter
High voltage unit	rated frequency	HZ	50
	rated voltage	kV	6	10	35
	maximum operating voltage	kV	6.9	11.5	40.5
	Power frequency withstand voltage to ground and interphase / isolation break	kV	32/36	42/48	95/118
	Lightning impact voltage to ground and interphase / isolation break	kV	60/70	75/85	185/215
	rated current	A	400A/600A
	Rated short-time to withstand current	kA	12.5(2S)	16(2S)	20(2S)
	Rated peak order to withstand current	kA	31.5	40	50
Low voltage unit	rated voltage	V	380/220
	Rated current of the main circuit	A	100～3200
	Rated short-time to withstand current	kA	15	30	50
	Rated peak order to withstand current	kA	30	63	110
	branch current	A	10～800
	Branch road number	road	1～12
	Compensation capacity	kVar	0～360
Transformer unit	rated capacity	kVA	50～2500
	impedance voltage	%	4	4～6
	tapping range		±2×2.5%　　±5%
	Connection group		Yyn0	Dyn11

service condition:

The elevation does not exceed 1000m
Ambient temperature: highest temperature + 40℃, lowest temperature-25℃; highest daily average temperature + 30℃, highest annual average temperature + 20℃
The outdoor wind speed shall not exceed 35 m/s
Relative air temperature not exceeding 90% (+ 25℃)
The ground inclination is not greater than 3%
The seismic level acceleration is not greater than 0.4 m/s
The seismic vertical acceleration is not greater than 0.2 m/s
The installation site has no fire, explosion risk, chemical corrosion and violent vibration