PowerXL EGP variable frequency drives
Demand more harmonics mitigation
Eaton’s enclosed 18-pulse drives use advanced 18-pulse technology that significantly reduces line harmonics at the drive input terminals, resulting in one of the purest sinusoidal waveforms available.
The enclosed 18-pulse drive also delivers True Power Factor—in addition to reducing harmonic distortion, the enclosed 18-pulse drive prevents upstream transformer overheating and overloading of breakers and feeders, enabling the application of variable frequency drives on generators and other high impedance power systems.
Power XL EGP variable frequency drive core features
Ease of use: Uses the core DG1 drive platform, Startup Wizard and built-in applications
Clean power: Robust design includes phase-shifting transformers and is compliant with IEEE-519
Efficiency: Designed and tested to provide maximum efficiency through best-in-class components
Rugged and reliable: Tested and proven solution built to meet commercial and industrial applications. Engineered solutions also available to suit your custom needs
Got harmonics? Learn what they are and how to manage them
Harmonic mitigation techniques can help protect equipment from potential damage, reduce power generation to overcome losses, and eliminate utility fines. Learn more about harmonics.
Watch the video to learn more.
Get the harmonics calculator
Save up to 10% more on energy costs above a standard drive with Eaton’s patented Active Energy Control
Active Energy Control reduces the output and motor current as much as possible while ensuring the motor continues to spin at the required speed.
Watch the video to learn more.
Combine the increased protection of the CPX variable frequency drive with the following.
Eaton's enclosed drives portfolio
Standard options
Enclosure options
- NEMA Type 1, 1 filtered,12, 3R, 7
- Wall-mount
- Floor-mount
- Space heater
Pilot device options
- Indicating lights
- Pushbuttons
- HOA switches
- Speed potentiometers
- E-stops
- External keypad
Control options
- CPT
- Terminal blocks
- Control relays
- Timers
Metering options
- Elapsed time meter
- Volt meter
- Amp meter
- Frequency meter
- Power meter
Input power options
- Circuit breaker disconnect
- Fused disconnect
- Fuses
- Surge protection
- Input reactor
Bypass options
- Three-contactor bypass
- Reduced voltage soft starter (RVSS) bypass
Output power options
- Output contactor
- Output reactor
- dV/dt filter
- Sine wave filter
Technology comparison
| Technology |
Eaton VFD type |
How it works |
Typical THD |
Advantages |
Disadvantages |
|---|---|---|---|---|---|
| Inductive reactors |
Mitigates higher-order harmonics by providing high input impedance that limits high-frequency currents. | 33-38% |
Low-cost, simple application |
Low effectiveness Voltage drop concerns |
|
| 12-Pulse converters |
HCX |
Two parallel 6-pulse converters fed by parallel isolation transformer paths, phase shifted 30°, which mitigates 5th and 7th order harmonics. Input impedance mitigates higher-order harmonics as well. | 12-18% |
Simple to apply Extremely robust |
Not as effective as other methods Relative high cost compared to passive filter |
| Passive filters |
Provides high input impedance for higher-order harmonics and a shunt-tuned reactor and capacitor to mitigate 5th and 7th harmonics. | 6-8% |
Simple retrofit Low cost for performance Insensitive to voltage balance |
Challenges with generator design Power factor issues Less robust than 18-pulse |
|
| 18-Pulse converters |
CPX |
Three parallel 6-pulse converters fed by a single-phase shifting autotransformer, phase shifted 20° to cancel all harmonics below the 17th. Input impedance mitigates higher-order harmonics as well. | 3-6% |
Simple to apply Extremely robust |
Higher cost on small hp |
| Active Front End drives |
RGX |
IGBT-based front end pulls relatively linear power from the line and uses a L-C-L filter to mitigate the IGBT switching noise. | 3-5% |
Slightly higher efficiency Immune to voltage imbalance Regeneration capability |
High cost, not as robust as 18-pulse |
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