Emerson EV2000 Series User Manual page 22

18 Chapter 3 Installation and Wiring
Input
switch
Model
Circuit
EV2000-4T
breaker
QF(A)
0075G/0110P 40
0110G/0150P 63
0150G/0185P 63
0185G/0220P 100
0220G/0300P 100
0300G/0370P 125
0370G/0450P 160
0450G/0550P 200
0550G 200
0750G 0750P 250
0900G 0900P 315
1100G 1100P 400
1320G 1320P 400
1600G 1600P 630
2000G 2000P 630
2200G 2200P 800
2800P 1000
Note:
1, Parameters in the table are recommended values.
2, The input protection fuses of inverters EV2000-4T0185G1/
0220P1 and EV2000-4T0220G1/ 0300P1 are respectively the
RT16 Series 63A and 80A products of Xi'an Fusegear
Manufacture Company.
4). DC reactor
DC reactor is required for the drive whose power is
greater than EV2000-4T0750G, for the drive whose
power is lower than EV2000-4T0750P, it is optional.
Under following conditions, a DC reactor should be used
to reduce the impact of AC supply to the drive and to
protect the drive and suppress the high-order harmonics.
(1) If a capacitor tank used for reactive power
compensation or a SCR load shares the same AC supply
with the drive, the harmonics caused by the SCR load or
the capacitor tank when it is switched on or off may
damage the drive's input rectifying circuit;
(2) When the unbalance rate of 3-phase AC supply of the
drive is greater than 3%;
(3) If the input power factor of the drive is required to be
greater than 0.93;
(4) When a large capacity transformer is connected to the
drive, the input current of the drive may damage the
rectifying circuit. Generally, if the input AC supply
Main circuit Control circuit
2
(mm ) (mm
Input Output Control
cable cable terminal
6 6 1
6 6 1
6 6 1
10 10 1
16 16 1
25 25 1
25 25 1
35 35 1
35 35 1
70 70 1
70 70 1
95 95 1
150 150 1
185 185 1
240 240 1
150×2 150×2
1
185×2 185×2 1
EV2000 Series Universal Variable Speed Drive User Manual
capacity of the drive is above 550KVA, or if the input AC
2
)
supply capacity is 10 times that of the drive, a DC reactor
is required to connect to the drive.
(5) Input AC Line Reactor
A line reactor should be used if the distortion of power
network is severe or the input current harmonic level is
high even after a DC reactor has been connected to the
drive. It can also be used to improve the AC input power
factor of the drive.
6) Output AC Line Reactor
When the cables from the drive to motor are longer than
80m, multi-stranded cables and an AC line reactor should
be used to suppress the high frequency harmonics. Thus,
the motor insulation is protected against heat due to
harmonics, leakage current is reduced and the drive will
not trip frequently.
(7) Input EMI filter
An EMI filter can be used to suppress the high frequency
noise generated by the drive's power cables.
(8) Output EMI filter
An EMI filter can be used to suppress the drive's output
noise and leakage current of cables.
(9) Safety ground
Since there is leakage current inside the drive, to ensue
safety, both the drive and the motor should be grounded,
the grounding resistance should be less than 10Ω. The
ground wire should be as short as possible. Please refer
to the section of the earth wire in Table 3-2.
Table 3-2 Section of Ground Wire
Cable Section (mm
S≤16
16＜S≤35
35＜S
Note that the data in the above table apply when the
conductor connected with the ground wire are made of
the same metal, otherwise, please calculate the
equivalent section based on the conductivity.
Notes:
1. EV2000 drive can meet the requirements of IEC 61800-3
after EMI filter is installed.
2. Installation of input and output EMI filters must be as close
to the drive as possible. Refer to Section 3.4 of Chapter 3 for
EMC installation instructions.
3. Refer to Section 2.3 of Chapter 2 and Appendix 2 for the
technical parameters of optional parts.
Min. section of ground
2
)
wire Sp（mm
S
16
S/2
2
）