Motor Reactors
Function
ED3S motor reactors have higher inductance than du/dt limiting reactors, which allows them to more effectively compensate the parasitic capacitances of motor cables and ensure more stable operation of the drive system. Their design enables effective limitation of the voltage rise rate (du/dt), reduction of overvoltages and elimination of electromagnetic disturbances over a wide frequency range.
ED3S motor reactors have higher inductance than du/dt limiting reactors, which allows them to more effectively compensate the parasitic capacitances of motor cables and ensure more stable operation of the drive system. Their design enables effective limitation of the voltage rise rate (du/dt), reduction of overvoltages and elimination of electromagnetic disturbances over a wide frequency range.
ED3S reactors are particularly recommended in installations where medium-length motor cables are used or where motors have increased sensitivity to overvoltages and harmonics generated by frequency converters.
Benefits
- Reduction of voltage rise rate (du/dt) at motor terminals
- Limitation of overvoltage amplitude, protecting winding insulation
- Lower motor operating temperature
- Extended service life of the drive system and motor insulation
- Reduction of electromagnetic interference (EMI)
- Reduction of electromagnetic noise generated by the motor
- More stable inverter operation and reduced stress on semiconductor components
Applications
- Drive systems with frequency converters (VFD)
- Supplying motors with reduced or medium insulation strength
- Installations with medium-length shielded motor cables
- Systems with high sensitivity to disturbances and overvoltages
- Industrial applications requiring EMI reduction
Product code
Typical application diagram
Custom Design
Manufacturing a transformer with parameters other than those specified in the catalogue is possible upon prior consultation.
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Product for:
Details:
| Rated current | 6-2250 A |
|---|---|
| Rated voltage |
380 - 500 V |
| Rated frequency | 50/60 Hz |
| Switching frequency | ≥2kHz |
| Overloadability | 110% In (continuous) 160% In 1 min/h (momentary) |
| Cooling | AN – air natural |
| Ambient temperature | 40°C – standard design 45°C – maritime design ≥50°C – special design |
| Insulation class | F (155°C) |
| Winding material | Aluminium, copper |
| Standard equipment | NC temperature switch |
| Mounting | standing, vertical |
| Degree of protection | IP00, klasa I |
| Applied standards | PN-EN 61558-20, PN-EN 60076-6 |
*- UL approved insulation system
Typical application diagram
