• Reduces the dU/dt values on the motor terminal phase-to-phase voltage
• Positioned between the AC drive and the motor to eliminate very fast voltage changes
• The motor terminal phase-to-phase voltage is still pulse shaped but its dU/dt values are reduced
• Reduces stress on the motor’s insulation and are recommended in applications with older motors, aggressive environments or frequent braking which cause increased DC link voltage
• VLT® FC series family look

Advantages

• Compatible with all control principles, including flux and WC+
• Parallel filter installation is possible for applications in the high power range.

Power range:

3 x 200 – 690 V (up to 880 A)

Enclosure ratings:

IP00 and IP20/IP23 enclosure in the entire power range
IP54 enclosure available up to 177 A

The post VLT® Power Options MCC 102 du/dt filter appeared first on drivetech.gr.

By supplying the motor with a sinusoidal voltage waveform, the switching acoustic noise from the motor is also eliminated.

Thermal losses and bearing currents

The sinusoidal voltage supply to the motor reduces hysteresis thermal losses in the motor. Since the motor insulation lifetime is dependent on the motor temperature, the sine-wave filter prolongs the lifetime of the motor.

The sinusoidal motor terminal voltage from the sine-wave filter furthermore has the advantage of suppressing bearing currents in the motor. This reduces the risk of flashover in the motor bearings and thereby also contributes to extended motor lifetime and increased service intervals.

Quality and design

All filters are designed and tested for operation with the VLT® AutomationDrive FC 302, VLT® AQUA Drive FC 202, and the VLT® HVAC Drive FC 102. They are rated for the nominal switching frequency of the FC series and therefore no derating of the drive is needed. The enclosure is designed to match the look and quality of the FC series drives.

Advantages

Compatible with all control principles including flux and VVC+
Parallel filter installation is possible for applications in the high power range

Range

3 x 200 – 500 V, 2.5 – 800 A
3 x 525 – 690 V, 4.5 – 660 A

Enclosures

IP00 and IP20 wall-mounted enclosures rated up to 75 A (500 V) or 45 A (690 V)
IP23 floor-mounted enclosures rated 115 A (500 V) or 76 A (690 V) or more

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