Harmonic Filter

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GIBSON
Mensajes: 7
Registrado: Dom Sep 29, 2019 12:47 am

Harmonic Filter

Notapor GIBSON » Mar Oct 15, 2019 8:00 am

Harmonic Filter solution is an engineer's approach to increasing 3P, Power, Productivity and Profitability. No stoppage. No breakdown. No quality rejection. World's all power intensive projects mitigate electrical harmonic using Tuned Passive Harmonic Filter. It's type of Harmonic Absorption Filter. Saves Energy. We are manufacturer of the most valued, super tuned, passive harmonic filter which improves bad power quality and eliminates voltage sag tripping. It's unmatched in performance and delivery. It reaps rewards that you can count on. It reconstructs distorted waveform back into sine-wave. Cleans up your electrical power system from harmonic power surge. Eliminates equipment nuisance tripping and harmonic failure.

If you design your project with harmonic filter and look holistically, it reduces your overall investment cost by precluding the need for equipment derating and running with a reduced load factor. Furthermore, if you add all benefits those accrue with it, like enhanced energy efficiency, lower carbon footprint, uninterrupted production, lower MTBF, inventory cost of components, and workforce motivation coupled with the ever rising cost of energy; the economic benefits would far outweigh the cost of the harmonic filter solution.

Imagen

1. There's no-one like it before and someone you like has arrived. We pride in manufacturing the most Beautiful Harmonic Filter.

2. Its beauty is a deception. It's a monster. It mercilessly Slashes down harmonics like no-one did before.

3. It's Rough and Tough (IP55) to withstand harsh environment. Unlike active harmonic filter it does not need to be installed inside air-conditioned room.

4. It's 50kA 1sec Short-Circuit proof, and Basic Insulation Level (BIL) compatible. That withhold Arc-Flash hazard.

5. It's super tuned. That eliminates nuisance tripping and failure of sensitive equipment.

6. It's bountiful. It Saves energy and cuts your OPEX through energy bill.

7. It's graceful presence in electrical power system cuts the need for Equipment Derating. Running with 100% load-factor cuts your CAPEX through savings in foot-print and project cost.

8. This beauty is for ever. It's designed for a 40-years of life.

9. It's Fully Automatic. Adjusts with process load variation and harmonic distortions in power system.

10. Thanks to you, our 350+ corporate clients for believing in it and every time rewarding us with Repeat Orders.

codposh
Mensajes: 140
Registrado: Dom Feb 03, 2019 6:31 am

Re: Harmonic Filter

Notapor codposh » Mar Oct 15, 2019 9:21 am

I agree. Passive harmonic filters are capacitors and reactors, tuned to specific harmonics, typically the 5th and 7th (sometimes only the 5th). But they would be designed based on the system impedance when on utility power, which is the PURPOSE of the harmonic filters. When not on the utility power, the impedance is much much higher and it changes the way the passive filter interacts with the harmonics from the drive. That in turn can then affect the AVR circuit in the generator and the two issues begin a nice little switch dance.

Disable the circuit that engages the passive filters when on the backup generator, you don't need them. The purpose of harmonic mitigation is to avoid affecting the INPUT harmonic distortion at the PCC, so that it does not travel to your neighbor. When you are on a backup generator, you have no neighbor!

LONG
Mensajes: 138
Registrado: Sab May 18, 2019 3:53 am

Re: Harmonic Filter

Notapor LONG » Mar Oct 15, 2019 9:22 am

codposh escribió:I agree. Passive harmonic filters are capacitors and reactors, tuned to specific harmonics, typically the 5th and 7th (sometimes only the 5th). But they would be designed based on the system impedance when on utility power, which is the PURPOSE of the harmonic filters. When not on the utility power, the impedance is much much higher and it changes the way the passive filter interacts with the harmonics from the drive. That in turn can then affect the AVR circuit in the generator and the two issues begin a nice little switch dance.

Disable the circuit that engages the passive filters when on the backup generator, you don't need them. The purpose of harmonic mitigation is to avoid affecting the INPUT harmonic distortion at the PCC, so that it does not travel to your neighbor. When you are on a backup generator, you have no neighbor!



Thanks for the replies guys. The six pumps are really the only load on the generator. The motors are 125hp and the gen is 500k. So if all six pumps were running at full load than the generator could be loaded to near capacity. This should never happen. Usually 4 pumps are running at full speed would be the norm.

We put the filters in to mitigate harmonics affecting the generator. Do you guys think this is not necessary? Also when the filter is engaged it has a loud ac hum and the drive input voltage drops from about 450 to 400. Im assuming the voltage drop is due to the chokes that are installed as part of this filter assembly. Also the drives draw about 15-20 more amps than usual at full speed when the filter is engaged. Im assuming this is due to the voltage drop.

Would you recommend removing the filters? Do you think the generator will be fine without them?


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