Applications:

???? Product series GTBM3 is a kind of non-contact magnetism-maintaining at power failure control system developed based on product series GTBM1,which integrates all functions of product series GTBM1 as well as the following features.

1?qSwitch guiding system using international advanced IGBT technology featuring rapid switching time,low power consumption,easy control and safe short circuit protection.

2?qControl mode using electronic digital control technology and single board computer chip command to precisely control all analogue indexes so as to improve the precision of all technical data.Its multi-line error detecing system ensure high reliability and strong integrity protection function to minimize the error rate of all spare parts.

3?qUsing low signal to control high power component.Using non-contact electronic switchs to control the changeover of attaching and releasing operating.Protection contactors are engaged or disengaged by zero current operating modes.No electric spark,no noise,no mechanical vibration and no electromagnetic interference.

4?qSuper control system using multi-point voltage detection to monitor over voltage,under voltage and power failture,featureing rapid respondence,accurate reset and battery capacity alarm.Thus,errors under magnetism mainnetism maintaining at power failure caused by the batteries in long-term service can be avoided.

5?qUsing multi-point current detection to make alarm signals upon short circuit,over current,circuit loop blocked and alert the customer to turn off the machine to check,All alarms have positioning indications for easy maintenance.

6?qUsing contravariant return storage technology to feed the energy back to power wupply network

1?qThe rated voltage of the electromagnet is in conform with the output voltage of the equipments;The total current (consumption power)of the electromagnet shall be less than or equal to the output current(power) of the commutation controlling units.

2?qElectromagnetic band-type brake of lifting device of the lift equipment shall be changed into DC electromagnetic band-type brake when the UPS power source of the crane is not available.

3?qElectromagnetic working temperature shall be over 50??,If these is other special requirements for cmodification,enlarging the capacity etc,shall note when ordered.