When the voltage of the grid is high, the transient large current that flows into the input power circuit may damage rectifier components. You need to configure an AC reactor on the input side, which can also improve the current adjustment coefficient on the input side.
When the distance between the VFD and motor is longer than 50 m, the parasitic capacitance between the long cable and ground may cause large leakage current, and overcurrent protection of the VFD may be frequently triggered. To prevent this from happening and avoid damage to the motor insulator, compensation must be made by adding an output reactor. When a VFD is used to drive multiple motors, take the total length of the motor cables (that is, sum of the lengths of the motor cables) into account. When the total length is longer than 50 m, an output reactor must be added on the output side of the VFD. If the distance between the VFD and motor is 50 m to 100 m, select the reactor according to the following table. If the distance is longer than 100 m, contact INVT's technical support technicians.
DC reactors can be directly connected to VFDs of 380 V, 37 kW or higher and the 660 V series. DC reactors can improve the power factor, avoid damage to bridge rectifiers caused due to large input current of the VFD when large-capacity transformers are connected, and also avoid damage to the rectification circuit caused due to harmonics generated by grid voltage transients or phase-control loads.
D.6.1 Reactors for AC 3PH 380 V (-15%)–440 V (+10%)
Model | Input reactor | DC reactor | Output reactor |
GD35-1R5-4-C1/D1/H1 | ACL2-1R5-4 | DCL2-2R2-4 | OCL2-1R5-4 |
GD35-2R2-4-C1/D1/H1 | ACL2-2R2-4 | DCL2-2R2-4 | OCL2-2R2-4 |
GD35-004-4-C1/D1/H1/H2 | ACL2-004-4 | DCL2-004-4 | OCL2-004-4 |
GD35-5R5-4-C1/D1/H1/H2 | ACL2-5R5-4 | DCL2-7R5-4 | OCL2-5R5-4 |
GD35-7R5-4- C1/D1/H1/H2 | ACL2-7R5-4 | DCL2-7R5-4 | OCL2-7R5-4 |
GD35-011-4- C1/D1/H1/H2 | ACL2-011-4 | DCL2-015-4 | OCL2-011-4 |
GD35-015-4-C1/D1/H1/H2 | ACL2-015-4 | DCL2-015-4 | OCL2-015-4 |
GD35-018-4-C1/D1/H1/H2 | ACL2-018-4 | DCL2-022-4 | OCL2-018-4 |
GD35-022-4-C1/D1/H1/H2 | ACL2-022-4 | DCL2-022-4 | OCL2-022-4 |
GD35-030-4-C1/D1/H1/H2 | ACL2-037-4 | DCL2-030-4 | OCL2-037-4 |
GD35-037-4-C1/D1/H1 | ACL2-037-4 | DCL2-2R2-4 | OCL2-037-4 |
GD35-045-4-C1/D1/H1 | ACL2-045-4 | DCL2-045-4 | OCL2-045-4 |
GD35-055-4-C1/D1/H1 | ACL2-055-4 | DCL2-055-4 | OCL2-055-4 |
GD35-075-4-C1/D1/H1 | ACL2-075-4 | DCL2-075-4 | OCL2-075-4 |
GD35-090-4-C1/D1/H1 | ACL2-0110-4 | DCL2-090-4 | OCL2-110-4 |
GD35-110-4-C1/D1/H1 | ACL2-110-4 | DCL2-110-4 | OCL2-110-4 |
GD35-132-4-C1/D1/H1 | ACL2-160-4 | DCL2-132-4 | OCL2-160-4 |
GD35-160-4-C1/D1/H1 | ACL2-160-4 | DCL2-160-4 | OCL2-200-4 |
GD35-185-4-C1/D1/H1 | ACL2-200-4 | DCL2-200-4 | OCL2-200-4 |
GD35-200-4-C1/D1/H1 | ACL2-200-4 | DCL2-220-4 | OCL2-200-4 |
GD35-220-4-C1/D1/H1 | ACL2-280-4 | DCL2-280-4 | OCL2-280-4 |
GD35-250-4-C1/D1/H1 | ACL2-280-4 | DCL2-280-4 | OCL2-280-4 |
GD35-280-4-C1/D1/H1 | ACL2-280-4 | DCL2-280-4 | OCL2-280-4 |
GD35-315-4-C1/D1/H1 | ACL2-350-4 | DCL2-315-4 | OCL2-350-4 |
1. The rated input voltage drop of input reactors is 2%±15%.
2. The current adjustment coefficient on the input side of the VFD is higher than 90% after a DC reactor is configured.
3. The rated output voltage drop of output reactors is 1%±15%.
4. The preceding table describes external accessories. You need to specify the ones you choose when purchasing accessories.
D.6.2 Reactors for AC 3PH 520 V (-15%)–690 V (+10%)
VFD power | Input reactor | DC reactor | Output reactor |
GD35-022-6-C1/D1/H1 | ACL2-030G-6 | DCL2-030G-6 | OCL2-030G-6 |
GD35-030-6-C1/D1/H1 | ACL2-030G-6 | DCL2-030G-6 | OCL2-030G-6 |
GD35-037-6-C1/D1/H1 | ACL2-055G-6 | DCL2-055G-6 | OCL2-055G-6 |
GD35-045-6-C1/D1/H1 | ACL2-055G-6 | DCL2-055G-6 | OCL2-055G-6 |
GD35-055-6-C1/D1/H1 | ACL2-055G-6 | DCL2-055G-6 | OCL2-055G-6 |
GD35-075-6-C1/D1/H1 | ACL2-110G-6 | DCL2110G-6 | OCL2-110G-6 |
GD35-090-6-C1/D1/H1 | ACL2-110G-6 | DCL2-110G-6 | OCL2-110G-6 |
GD35-110-6-C1/D1/H1 | ACL2-110G-6 | DCL2-110G-6 | OCL2-110G-6 |
GD35-132-6-C1/D1/H1 | ACL2-185G-6 | DCL2-185G-6 | OCL2-185G-6 |
GD35-160-6-C1/D1/H1 | ACL2-185G-6 | DCL2-185G-6 | OCL2-185G-6 |
GD35-185-6-C1/D1/H1 | ACL2-185G-6 | DCL2-185G-6 | OCL2-185G-6 |
GD35-200-6-C1/D1/H1 | ACL2-250G-6 | DCL2-250G-6 | OCL2-250G-6 |
GD35-220-6-C1/D1/H1 | ACL2-250G-6 | DCL2-250G-6 | OCL2-250G-6 |
GD35-250-6-C1/D1/H1 | ACL2-250G-6 | DCL2-250G-6 | OCL2-250G-6 |
GD35-280-6-C1/D1/H1 | ACL2-350G-6 | DCL2-350G-6 | OCL2-350G-6 |
GD35-315-6-C1/D1/H1 | ACL2-350G-6 | DCL2-350G-6 | OCL2-350G-6 |
GD35-350-6-C1/D1/H1 | ACL2-350G-6 | DCL2-350G-6 | OCL2-350G-6 |
GD35-400-6-C1/D1/H1 | Standard configuration | DCL2-400G-6 | OCL2-400G-6 |
GD35-500-6-C1/D1/H1 | Standard configuration | DCL2-560G-6 | OCL2-560G-6 |
GD35-560-6-C1/D1/H1 | Standard configuration | DCL2-560G-6 | OCL2-560G-6 |
GD35-630-6-C1/D1/H1 | Standard configuration | DCL2-630G-6 | OCL2-630G-6 |
Note:
1. The rated input voltage drop of input reactors is 2%±15%.
2. The current adjustment coefficient on the input side of the VFD is higher than 90% after a DC reactor is configured.
3. The rated output voltage drop of output reactors is 1%±15%.
4. The preceding table describes external accessories. You need to specify the ones you choose when purchasing accessories.