Mining Explosion proof Intrisically safe type AC Inverter

1.used to control the soft start, soft stop and speed adjustment during operation of asynchronous motor 2.AC50HZ,660 or 1140V

Mining Explosion-proof &Intrinsically Safe AC Frequency Inverter

Purpose

 It is a high technology product assembling vacuum magnetic starter, digital frequency

converting speed adjustment device and related cooling technology. It is used to

control the soft start, soft stop and speed adjustment during operation of asynchronous

motor of AC frequency 50HZ,rated voltage 660V or 1140V,with the good features of

starting current small, starting speed stable, starting time adjustable, impact on grid

small, starting performance reliable, especially with starting curves ”S” and linear.

The curves are optional according to the accurate working status, only to reduce the

dynamic tension on equipment during the starting. If used with bell conveyor ,it is

possible to decrease the belt strength requirement of conveyor, dropping the initial

investment, meanwhile, extending the usage life of conveyor. When the frequency

convertor works on line, it is possible to adjust the power voltage and frequency of

motor according to the load of motor, only to achieve the expected torque and energy

saving.

 This product is mainly used to control the soft start, soft stop and operation process of

transportation equipment at the places of coal mine well, open-air mine, port wharf,

coal preparation plant, power generating factory.

 Technical Data

Input Voltage(V)	AC 660/1140,50/60HZ(-15%+10%)
Output Voltage(V)	AC 660/1140
Starting Frequency(HZ)	0.5-60HZ adjustable settings
Screen Resolution (HZ)	0.01
Intrinsically Safe Power: input voltage(V)	220
Intrinsically Safe Max Breaking Voltage of Output(V)	DC18
Max Current of Output(A)	0.5
Starting Time (S)	1-300 seconds adjustable
Working Type	Short-time ,on-line
Braking Type	Power consumption braking, DC braking, feedback braking
Low Frequency Turn	Automatic torque compensation, low speed full torque ,150%rated torque
Accelerative &Slow Down Curves	Liner and “S” curve
Cooling Method	Cool naturally below45KW, cool by heat tube 45-500KW
Control method	Vector control without speed sensor
Ex-mark	Exd[ib]I explosion-proof and intrinsically safe

Mining Explosion proof Intrisically safe type AC Inverter