Wiring; Connection With Peripheral Devices - Sanken SVCO6 Instruction Manual

4. Wiring


Read the Notes on Wiring (1-5) before wiring.
Failure to observe this warning may result in personal injury or fire.
4-1

Connection with Peripheral Devices

Name
When there is need for matching the system power
supply voltage with rated inverter input voltage, please
Input power supply provide the input power supply transformer.
transformer When several inverters are used, please provide the
input power supply transformer to reduce the impact of
high-order harmonic on other load devices.
Please connect Molded case circuit breaker or earth
Molded case circuit
leakage circuit breaker in the overload protection circuit
breaker
during protection and wiring of the power supply
or
system.
Earth leakage
When using earth leakage circuit breaker, select a
circuit breaker
product for corresponding high-order harmonic.
Electromagnetic The coil must be provided with a surge absorber.
contactor
Please install the surge absorber for suppression of surge
Surge absorber generated on opening and closing of electromagnetic
contactors and control relays.
To achieve the following objectives, please install the
reactor
·Improve the inverter's input power factor
AC reactor
·Reduce the impact on inverter due to unbalance
between phases of power supply voltage
·Prevent tripping of inverter due to action of phase lead
DC reactor compensation capacitors in the system
·When the capacity of power supply is large (above
500kVA)
Reduce the interferences coming into input power
supply system of the inverter and generated by wiring.
Zero-phase reactor
It is recommended that elements such as
Line noise filter
zero-phase reactor etc. be inserted as close to
inverter as possible.
Used to suppress the radio noise radiating to power
Radio noise filter
supply side of the inverter.
Reduce the interferences coming into input power
supply system of the inverter and generated by wiring.
Noise filter
is recommended that noise filter be installed as
It
close to inverter as possible.
Purposes and Detailed Description
- 21 -
Power supply
Input power supply
transformer
Molded case circuit
breaker or
Earth leakage
circuit breaker
Electromagnetic
contactor
AC reactor
Zero-phase
reactor
Radio noise filter
Noise filter
inverter
DC Reactor
Zero-phase reactor
Motor