1500kV 2500 KV Pad Mounted Transformer

Product introduction

YB box substation, also known as European box change and pad mounted transformer. Products comply with GB17467-1998 "high and low pressure prefabricated substation" and IECI330 and other standards, as a new type of power supply and distribution equipment, it has many advantages over traditional civil substation: Because of its small size, small footprint, compact structure, It is easy to relocate, which greatly shortens the infrastructure cycle time and floor space, and also reduces infrastructure costs. At the same time, the box-type substation is simple to install on site and the power supply is quick. The maintenance of the equipment is simple and there is no need for dedicated personnel. In particular, it can penetrate into the load center. It is very important to improve the quality of the power supply, reduce the power loss. Enhance the reliability of the power supply, and reselect the distribution network. Box change completes the transformation, distribution, transmission, metering, compensation of electrical energy, system control, protection and communication functions.

YB substation is composed of high-voltage switchgear, low-voltage distribution panel, distribution transformer and shell. The high-pressures air load switch. The transformer is dry type transformer or oil-immersed type transformer The box body adopts a good heat insulation and ventilation structure, which is beautiful in appearance and good in heat insulation performance. The box body is provided with an air duct that can be ventilated up and down, and the temperature rise caused by the outdoor insulation to the transformer room and the high and low pressure rooms can be reduced to the minimum. The box body is equipped with temperature-controlled forced ventilation device and solar temperature automatic

control device. Each individual unit is equipped with complete control, protection, live display and lighting system.

Functions and Features

It is applicable to small unattended substations with a voltage level of 10kV and below, main transformer capacity of 5000kVA and below, and is widely used in urban industrial substations, 10KV ring network systems, and rural 35kV substations, etc.: transformation, distribution and transmission of electrical energy are completed., measurement, compensation, system control, protection and communication functions.
The first and second equipment is pre-installed in a removable, fully enclosed, temperature-controlled, corrosion-proof, moisture proof and rust-proof box, which is only required to be installed on the cement foundation. It has the characteristics of less investment, short construction period, less floor space and easy coordination with the environment.

Technical parameter

YB series box substation

Item		Unit	Parameter
High-voltage part	Rated frequency	Hz	50
	Rated voltage	kV	6 10 35
	The Max. Working voltage	kV	6.9 11.5 40.5
	Work frequency and withstand voltage Ground and white/isolation break	kV	32/36 42/48 95/118
	Lightning impulse withstand voltage Ground and white/isolation break	kV	60/70 75/85 185/215
	Rated current	A	400 630
	Rated short time withstand current	kV	12.5(2S) 16(2S) 20(2S)
	Rated peak withstand current	kV	31.5 40 50
Low-voltage part	Rated voltage	V	380 220
	Main circuit rated current	A	100~3200
	Rated short time withstand current	kV	15 30 50
	Rated peak withstand current	kV	30 63 110
	Branch current	A	10~800
	The number of branch circuits		1~12
	Compensation capacity	kVar	0-360
Transformer part	Rated Capacity	kVA	50~2000
	Short-circuit impedance	%	4 6
	Tapping range		±2x2.5% ±5%
	Join group		Yyn0 Dyn11

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