1. SELL ETA
Special Good Through April

2. THE ABCs OF POWER CONDITIONING
A Simplified Approach to Understanding Power Quality Problems and How to Solve Them.

3. What is the origin of power quality problems?

4. Usually they have an earthly source
Hildegard, switch off the mixer, my monitor is flickering!

5. And I don‘t mean this one . . . .

6. Where Do Power Quality Problems Start?
Disturbances are generated external to a facility.
Disturbances are generated internal to a facility.

7. How Do They Enter a System?
Normal Mode
Phase (hot) to Neutral
Should be <10 volts
Common Mode
Neutral to Ground
Should be < ½ volt

8. What Devices Are Used To Solve Power Problems
What Devices Are Used To Solve Power Problems. Which Device Is The Appropriate One To Use?

9. SIMPLE AS A-B-C

10. AC – The Surge Diverter/Filter
GEAR
Example of surge diverter/noise filter function.
Diverters and filters convert normal mode to common mode.

11. B – Isolation TransformerH N G H
N/G
Isolation transformers eliminated common mode voltage.
Transformers provide a code legal way of bonding neutral to ground.

12. Balanced Power TransformerH N G H G N
60 volts
60 volts
Balanced power transformers have their ground separated from phase and neutral by 60 volts. Neutral and ground cannot be bonded and common mode voltage is not eliminated. Balanced power transformers are primarily designed to eliminate 60 Hz. hum. They are not intended for microprocessor based electronics.

13. ABC – ETA Power ConditionerH
N/G H N G
When used with a true isolation transformer with a neutral to ground bond, surge diverters and noise filters can do their job without creating a common mode disturbance. The number of surge diversion and filter elements is also greatly reduced.

14. An Example of Power Line Noise
Normal Mode Noise - ~ 1.5 volts
Common Mode Noise - ~ 2 volts

15. Power Quality Performance of a Furman Sound PL8
Normal Mode Noise - Power Line - ~ 1.5 volts
Common Mode Noise - Power Line - ~ 2 volts
Power Line Noise
Reference
Power Quality Performance of a Furman Sound PL8

16. Power Line Noise Reference Power Quality Performance of a Surgex SA966
Normal Mode Noise - Power Line - ~ 1.5 volts
Common Mode Noise - Power Line - ~ 2 volts
Power Line Noise
Reference
Power Quality Performance of a Surgex SA966

17. Power Line Noise Reference
Normal Mode Noise - Power Line - ~ 1.5 volts
Common Mode Noise - Power Line - ~ 2 volts
Power Line Noise Reference
Power Quality Performance of an ETA Systems PD8

18. Power Line Noise Reference
Normal Mode Noise - Power Line - ~ 1.5 volts
Common Mode Noise - Power Line - ~ 2 volts
Power Line Noise Reference
Power Quality Performance of a Furman Sound IT1220

19. Power Line Noise Reference
Normal Mode Noise - Power Line - ~ 1.5 volts
Common Mode Noise - Power Line - ~ 2 volts
Power Line Noise Reference
Power Quality Performance of an ETA Systems PCI-2000NA

20. Questions ?