What is Medium Frequency Drive?

The AC Drive which can provide direct high voltage to the motor without any output transformer or filter.

Types of Medium Voltage Drive

         1.  Current Source Inverter

         2.  Voltage Source Inverters

           i.    Two-Level Inverter

           ii.   Neutral Point Clamped Inverter

           iii.  Multilevel Cascaded H-bridge     Inverter

           iv.  Multilevel Flying capacitor Inverter

Amtech’s Medium Voltage Drive

AXPERT-HIVERT series Medium Voltage VFD offers a simple, reliable, cost-effective power structure that is easy to apply to a wide voltage and power range. It is highly used for speed regulation, energy savings, soft-startup and intelligent control of the medium voltage motors in industries such as thermal power plants, petroleum, chemical, mining, cement and metallurgy.  They are also used for AC-DC-AC direct medium voltage VFD, Multiple cells connected in series, Multi-level output, High reliability and High efficiency.

The product embellishing the product portfolio is as follow,

         Axpert Hivert Medium Voltage Drive Series

Range: 250 kW (270 HP) to 12500 kW (16750 HP)

Voltage: 3.3 kV, 6.6 kV & 11 kV

Advantages with Amtech's Medium Voltage Drive

1. Reduced cost

• Energy saving on fan and pump
• Reduced maintenance costs on mechanical equipment
• Increased life of mechanical equipment

2. Improved process control

• Increased productivity
• Greater flexibility
• Environment compliance

3. Starting large motors on weak power systems

• Eliminate voltage flicker
• Reduce inrush current
• Higher starting torque than reduced voltage starter