1 Overview

GCKl series motor control center, is mainly composed of some combination of motor control unit, and other functional units ". These units are installed in a closed metal cabinet in the following manner. By setting the level of bus in the cabinet top, each cabinet together with a cabinet function unit is connected in parallel to the vertical bus. Four separated area cabinet consists of horizontal bus area, vertical bus area, cable area and equipment installation area, functional units are installed in the small room, when any one functional unit at the time of the accident, shall not affect other units, prevent the accident.

This product conforms to the standard of ZBK36001 - 89 low voltage drawer type switchgear. The IP40 protection grade IECll4 provisions of the product, when all the doors and panels or door is closed, open and single function in out of position, can reach the corresponding grade of protection, which can ensure personal safety.

The product is provided with a perfect and reliable grounding system and protection circuit, Suoke function unit can according to the specified performance requirements, breaking short-circuit current, line unit has three section protection characteristics. Therefore, it can ensure the reliability of power supply and the safety of equipment and system.

All of the units, and can PC through the interface board member (programmable controller) or microprocessor connected, as the implementation unit of the automatic control system, function unit and function combination according to the needs of the user can also provide other content, the product is suitable for AC 380V frequency circuit in 50Hz

2 main technical performance characteristics

2.1 main electrical performance in line with the International Electrotechnical Commission IEC standards and the American Electrical Manufacturers Association NEMA standards.

2.2 each cabinet can be used to isolate the main transformer and auxiliary circuit, auxiliary circuit operation power supply for 50Hz, 220V: signal power supply for 50Hz, 6V.

2.3 the main power switch has three sections (instantaneous, short delay and overload) protection, and the next level of the main switch (with instantaneous and overload protection of the two), the abolition of instantaneous

A section, to avoid tripping. And with self - cast, no self - switching and switching devices for selection.

2.4 the horizontal bus has a single bus segment and not divided into two kinds, when using a single bus segment, the master switch also has a self cast, no self cast and device.

2.5 motor control circuit with short circuit, overload, undervoltage, release and phase failure protection.

2.6 the AC contactor in each function unit has the function of energy saving when operating in silence. At the same time, when the power supply disappears with the delay (greater than 0.3s, less than 0.5s) release characteristics. Therefore, the motor can not start the installation of the relay can also be within 0.3s (reclosing or standby power input time is less than 0.3s) to restore power supply, to ensure that the motor continues to run.

2.7 the main switch of the power supply circuit has instantaneous and overload protection, when the user needs to be able to add leakage protection.

2.8 lighting and household appliances with power supply main switch circuit, instantaneous overload and leakage protection of the circuit is especially suitable for electric drills, grinders and other mobile appliances.

The 2.9 circuit with a current, active and reactive power meter. 250A and above power supply circuit can be loaded or not loaded current meter and meter. Other circuits larger than 37kW or 60A are equipped with current meters.

2.10 the accident can be installed lights and alarm devices.