Case 1
Nuisance Problems

• Current surge
• Voltage transients
• Drive nuisance tripping
• Voltage notching
• High-voltage spikes from capacitor switching
• Multiple motor applications on the same bus

Recommendation: Select a 3% Line Reactor sized per the voltage and horsepower from the Myron Zucker, Inc. catalog. Connect on the input as follows:
If used on the input side of a drive for non-harmonic applications (a Trap/filter is not used), then the Line Reactor is connected in series with the power leads to the drive and should be on the load side of the drive disconnect.

Case 2
Motor Drive Problems

• Motor Temperature
• Motor Noise
• Motor efficiency improvement

Recommendation: Select a 5% Line Reactor sized per the voltage and horsepower from the Myron Zucker, Inc. catalog. Connect on the output as follows:
If used on the output side of a drive, the Line Reactor is connected in series with the motor which run from the drive to the motor.

Case 3
Motor Drive - Harmonic Reduction - No Power Factor Penalty Imposed by Utility

For harmonic reduction on motor drive circuits with no power factor correction capacitors on the secondary side of the industrial plant transformer and no power factor penalty imposed by the utility company, use the following:

Recommendation: Select a 5% Line Reactor sized per the voltage and horsepower from the Myron Zucker, Inc. catalog. Connect on the input as follows:
If used on the input side of a drive for non-harmonic applications (a Trap/filter is not used), then the Line Reactor is connected in series with the power leads to the drive and should be on the load side of the drive disconnect.

Case 4
Motor Drive - Harmonic Reduction - Power Factor Penalty Imposed by Utility

In facilities which have power factor penalties and power factor correction capacitors are installed, or there are plans to install power factor correction capacitors, the following should be used:

If existing power factor correction capacitors are installed and Adjustable Speed Drives (ASDs) are being added, then harmonic filters must be installed on each ASD or group of ASDs. Contact Myron Zucker, Inc. regarding Traps/filters and their applications. To isolate the in-plant power factor correction capacitors, a Line Reactor must be installed on the line side of the harmonic Trap/filter.

Recommendation: Select a 5% Line Reactor sized per the voltage and horsepower from the Myron Zucker, Inc. catalog. Connect on the input as follows:
If used on the input side of a drive for harmonic applications (a Trap/filter is used), then the Line Reactor is connected in series with the power leads to the drive and and on the line side of the Trap/filter.