Miniaturized Intelligent Center-Mounted Metal-Enclosed Switchgear

The AZS 650i-12 Miniaturized Intelligent Center-Mounted Metal-Enclosed Switchgear is a new generation of compact, intelligent switchgear meticulously developed by our company. It is designed based on the current demands of smart grids and combined with the structure and characteristics of the Chinese power grid. This switchgear is suitable for 12kV three-phase AC 50Hz power grid systems and the power systems of industrial and mining enterprises. It provides intelligent and reliable control, protection, measurement and control, visualization of equipment status monitoring, comprehensive performance diagnostics, as well as external communication, remote monitoring, and control functions.

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Description
Parameter

This equipment incorporates a medium-voltage intelligent real-time condition monitoring system, which promptly assesses the operating status of the circuit breaker and switchgear and identifies defect locations. This capability helps to reduce premature or unnecessary power outage tests and maintenance, thereby minimizing maintenance workload and repair costs, and enhancing the targeted nature of inspections. Ultimately, this significantly improves the reliability and economic efficiency of the power system.

The AZS 650i-12 features a miniaturized design with dimensions of 650mm in width, 1450mm in depth, and 2320mm in height, with a weight not exceeding 700 kg. Its main technical parameters include a rated voltage of 12kV and a rated frequency of 50Hz. The rated insulation level is 42kV/48kV (isolate port) for 1-minute power frequency withstand voltage (effective value), 75kV/85kV (isolate port) for lightning impulse withstand voltage (peak value), and 2000V for auxiliary control circuit power frequency withstand voltage.

Furthermore, the main bus rated current is 630A or 1250A. The rated short-time withstand current (4s) can reach 20kA, 25kA, or 31.5kA, and the rated peak withstand current is 50kA, 63kA, or 80kA. The equipment's rated circuit breaking current is 63kA or 80kA, and its rated circuit closing current is 20kA, 25kA, or 31.5kA. The auxiliary circuit rated voltage supports AC/DC 110V or 220V. The protection level is IP2X when the circuit breaker room door is open or the isolation room is exposed.

Item

Unit

Data

Height

mm

2320

Width

mm

650

Depth

mm

1450

Weight

kg

≤700

No.	Item		Unit	Parameter
1	Rated Voltage		kV	12
2	Rated Frequency		Hz	50
3	Rated insulation level	1 min power frequency withstand voltage (effective value)	kV	42/48(Isolate Port)
		1 min power frequency withstand voltage (effective value)	kV	42/48(Isolate Port)
		Lightning impulse withstand voltage (peak value)	kV	75/85(Isolate Port)
		Auxiliary control circuit power frequency withstand voltage (1min)	V	2000
4	Main bus rated current		A	630、1250
5	Rated short-time withstand current (4s)		kA	20、25、31.5
6	Rated peak withstand current		kA	50、63、80
7	Rated circuit-breaking current		kA	63、80
8	Rated circuit closing current		kA	20、25、31.5
9	Auxiliary circuit rated voltage		V	AC/DC 110/220
10	Protection level			Circuit breaker room door open or isolation room is IP2X
11	Dimensions		mm	650×1450×2320