Wiring
26
Notice: Be sure that the electric polarity of (+) (-) terminals is right; it is not allowed
to connect (+) with (-) terminals directly, Otherwise damage or fire could occur.
4.5.3 Wiring at motor side of main circuit
z
Output
Reactor
When the distance between inverter and motor is more than 50m, inverter may be
tripped by over-current protection frequently because of the large leakage current
resulted from the parasitic capacitance with ground. And the same time to avoid the
damage of motor insulation, the output reactor should be installed.
z
Output EMC filter
EMC filter should be installed to minimize the leakage current caused by the cable and
minimize the radio noise caused by the cables between the inverter and cable. Just see
the following figure.
Figure 4.10 Wiring at motor side.
4.5.4 Wiring of regenerative unit
Regenerative unit is used for putting the electricity generated by braking of motor to the
grid. Compared with traditional 3 phase inverse parallel bridge type rectifier unit,
regenerative unit uses IGBT so that the total harmonic distortion (THD) is less than 4%.
Regenerative unit is widely used for centrifugal and hoisting equipment.
Содержание CHV Series
Страница 2: ......
Страница 12: ...Introduction 4 1 4 Parts Description Figure 1 2 Parts of inverter 15kw and below...
Страница 13: ...Introduction 5 Figure 1 3 Parts of inverters 18 5KW and above...
Страница 23: ...Disassemble and Installation 15 Figure 3 7 Disassembly of metal plate cover Figure 3 8 Open inverter cabinet...
Страница 25: ...Wiring 17 4 1 Connections of Peripheral Devices Figure 4 1 Connections of peripheral devices...
