Instructions Of Peripheral Electrical Components; Selection Guidance Of Peripheral Electrical Components - Canworld CDE360 Series Manual

CDE360 Vector Control AC Drive

3.2.1 Instructions of Peripheral Electrical Components

Table 3- 2 Instructions of peripheral electrical components of CDE360 AC drive
Installation
Name
Position
The front end of
Breaker
the input circuit
Between the
Contactor breaker and the
AC drive
Input AC Input side of the
reactor AC drive
Input Input side of the
Noise filter AC drive
Between the terminal
DC
P+ and terminal P1 of
reactor
the AC drive
Close to the
Output AC
output side of the
reactor
AC drive

3.2.2 Selection Guidance of Peripheral Electrical Components

Note: Voltage and power classes is the only consideration in peripheral electrical parts selection.
The power system can be protected when the short circuit happens.
Start and stop the AC drive.Neither start and stop the AC drive
frequently by switching the contactor on and off (less than twice per
minute) nor use it to directly start the AC drive.
1) Improve the power factor of the input side.
2) Eliminate the higher harmonics of the input side effectively and
prevent other devices from being damaged due to the distortion
of the voltage waveform.
3) Eliminate the input current unbalance due to the unbalance
between the power phases.
1)
Reduce the external conduction and radiation interference of the AC drive.
2)
Decrease the interference flowing from the AC drive to the power system.
1) Improve the power factor of the input side.
2) Eliminate the higher harmonics of the input side effectively and
decrease the external conduction and radiation interference.
The output sides of the AC drive generally have much higher
harmonics. When the motor is far from the AC drive, there is much
distributed capacitance in the circuit. Certain harmonics may cause
resonance in the circuit and bring about the following two impacts:
1) Degrade the motor insulation performance and damage the
motor in the long run.
2) Generate large leakage current and cause frequent AC drive
protection trips.
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Chapter 3 Mechanical and Electrical Installation
Function Description