Based on the widely recognized MNS intelligent switchgear UL solution

The lightweight and economical vacuum contactor cabinet is mainly used in the field of switching motors, transformers and capacitor loads, and is widely used in the nuclear power market. The vacuum contactor V7 / ZVC equipped with the switch cabinet can perform frequent operations, with an electrical life of up to 100,000 times and low operating overvoltage. Excellent electrical performance in the industry, to meet the needs of customers, anti-corrosion and salt spray environmental solutions, to meet the harsh environmental requirements of the site.

As an air insulated metal enclosed switchgear, it has a very compact cabinet design, the cabinet width is only 325 mm, with perfect mechanical locking, to prevent misoperation, high structural strength, can withstand internal arc failure up to 50 kA / 1 s, can meet the needs of compact space distribution room.

The design scheme is flexible, including direct splices with the UniGear ZS1 in the structure, and cable access to the bottom or top of the scheme into the cabinet. The cabinet type in accordance with the requirements of GB standard, conducted a comprehensive type test, and passed the nuclear level certification, digital cabinet reserved interface, to achieve subdivision of application scenarios.

Product advantage

· Compact structure, cabinet width is only 325 mm

· Modular structure, easy to install

· Wide application range, can expand wireless measurement and electrical operation applications

Product characteristics

· Rated voltage: 7.2kV

· Rated current: 400A

· Rated short-time withstand current: 50 kA / 3s

Provides complete motor protection. Perfect motor protection is to collect and track the detailed information of various operating conditions during the operation of the motor, and to alarm and protect the fault

Action (protection trip) and action delay time setting to achieve timely and accurate protection, to ensure the safety of production. At the same time, the detailed information of motor running condition can be detected in real time on the host computer through communication, which provides the basis for process analysis and management optimization. Before the equipment may have a major failure, the alarm can remind the management personnel to deal with it in time, avoid unnecessary downtime affecting normal production, and ensure the effectiveness of equipment operation as far as possible.

Thermal overload (TOL) protection is to protect the motor from shortened life or damage due to overheating by tracking and calculating the heat capacity of the motor during operation. At the same time, the thermal memory function of the TOL protection is of great significance for the occasions where the motor needs to be started frequently.

The TOL protection has a thermal memory function, which can effectively prevent the motor from starting in an overheated state. The M10x device simulates the thermal state of the motor in various operating states in order to make full use of the motor and ensure the safety of the motor. Thermal overload protection also takes into account the temperature rise of the rotor and stator of the motor, and fully considers the effect of three-phase unbalance on the heating of the motor. When the motor is to be restarted, the device will automatically determine whether the temperature after the motor stops running has dropped to the limit value that can be restarted, if it is allowed to restart, otherwise the starting operation will be blocked until the motor temperature drops to meet the limited condition of restart.