Control room operator can be based on in the background

Control room operator can be based on in the background, complete all the protector the various protective setting of data read, modify and setting. At the same time, the on-line monitoring motor run load and power supply power quality for early detection of overload and ground fault, created conditions. In addition, the background of the microcomputer strong information management function, which can effectively record the motor model and operation mode, and maintenance record history, to rotating joint ensure the safety production, process system to reduce accident parking, provide a reliable basis. 4 selection principle of
(1) motor protector in the form of the structure to differentiate, typically divided into an integral and split two kinds. The former is independent of the whole, is suitable for the fixed cupboard installation, such as old switchgear or GGD ark transformation, can be directly in the installation fixed protector on the panel, through the feed cable core can wear out. The latter part and display part because the transformer is divided into two bodies, can be within the scope of certain and arbitrarily set. It is very suitable for a new type of drawer switchgear installation. We in the engineering practice due to rotary union general used the new a domino type or GCK low pressure switch cabinet series of the upper, and creative will show the multiplier of embedded in the activities of the drawer switch installed in the panel, such already simplified the wiring, and in which the system at any time convenient adjustment, set parameters and display, monitoring, at the same time, the digital display panel also added to the unity of the map and beautiful sex; Make the equipment operation distribution indoor and fault state be clear at a glance, and great convenience to the patrol system and maintenance.
(2) motor protector according to fiber optic rotary joint the rated voltage and current range to differentiate, can be divided into AC380V, AC220V two; the corresponding range for 6 A, 60 A, grade, when using, according to the motor control loop load voltage and rated current of the choose corresponding range range can. In practical application, because the chemical device large motor is more, for the convenience of exchange and reduce the kinds of spare parts, for 110 KW or more of the motor, we used in the main loop installed (mouth / 5) current transformer way, A current into less than 5 A second current, and access for 6 A range of motor protector, the large equipment is also effectively control and protection.