ETA Systems SM5505 - Manual (Page 26)

Conditioned Power Center 26
Section 7 - Options
7.1 Passive Harmonic Filter
The passive harmonic filter package is located below the transformer
secondary on the left side of the power conditioner. See Figure N to the
left. This circuit is bi-directional. It will mitigate odd order harmonic
currents originating from the load or the facility. Because passive
harmonic filters have a tendency to "sink" harmonics regardless of the
source, it is necessary to protect this circuit in the event of excessive
odd order harmonic content in the facility electrical system. To
accomplish this, the power conditioner provides a circuit breaker on the
front panel. Should the facility have excessive odd order harmonics, the
circuit breaker will trip. The circuit breaker may be reset while the power conditioner is operating. Unless the
source of excessive harmonic current is located and corrected, the circuit breaker will likely trip again
immediately.
NOTE: The CPC series will operate properly and provide power conditioning even if the harmonic
mitigation breaker is tripped. The breaker may be reset with power applied to the unit. However, it will be
necessary to address the harmonic condition of the facility electrical system if breaker tripping persists.
7.2 Basic Metering
If equipped with this option, a Power Measurements Limited Series 6200 ION compact modular power meter will
be installed in the front panel adjacent to the input circuit breaker. The 6200 ION provides energy and demand
measurements, per phase voltage, current, frequency and power factor, peak current demand, THD, and other
real-time, true RMS electrical parameters. Communications capability is also available. Contact the
manufacturer of the power conditioner for more information about optional communications capabilities.
7.3 Power Management
If equipped with this option, the power conditioner will have a Power Measurements Limited Series 7500 ION
power monitor installed in the front bezel. The 7500 ION is shown in Figure X. The 7500 ION monitor provides
measurement of critical operating parameters such as voltage, current, power factor and demand. It also
provides the ability to monitor apparent power, true power, reactive power and to display vector diagrams,
harmonic currents and a wealth of other information in either alphanumeric or bar graph formats. The 7500 ION
monitor stores waveforms and event logs and makes them available to facilities or systems managers when
equipped with one of several optional communications interface cards. Optional communications interfaces
include, 10Base-T or 10Base-FL Ethernet, RS-232, RS485, or modem connections. An optical port on the front
panel is standard. Contact the manufacturer of the power conditioner for more information about optional
communications capabilities.
Figure N