libra-3k electronic polyphase meter handbook - ABE Technologies
libra-3k electronic polyphase meter handbook - ABE Technologies
libra-3k electronic polyphase meter handbook - ABE Technologies
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OKRW2.702.303SS, Libra-3K Poly-phase Meter Handbook v1.0<br />
3.1.1.2 Varhour Measurements<br />
The Libra-3 <strong>meter</strong> provides the following Varh measurement choics:<br />
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<br />
Varh sum of elements lagging only<br />
Varh sum of elements leading only<br />
Varh sum of elements |lagging| - |leading|<br />
Varh sum of elements |lagging| + |leading|<br />
Varh per element lagging<br />
Varh per element leading<br />
Varh per element |lagging| - |leading|<br />
Varh per element |lagging| + |leading|<br />
Varh per element per quadrant<br />
3.1.1.3 Volt-ampere-hour Measurements<br />
The Libra-3 <strong>meter</strong> provides the following VAh measurement choics:<br />
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Apparent VAh<br />
Arithmetic apparent VAh<br />
Phasor VAh<br />
Apparent VAh per quadrant<br />
Arithmetic apparent VAh per quadrant<br />
Phasor apparent VAh per quadrant<br />
Apparent VAh per element<br />
Apparent VAh per element per quadrant<br />
3.1.1.4 Voltage Measurements<br />
The Libra-3 <strong>meter</strong> provides the following Voltage measurement choics:<br />
<br />
<br />
Voltage line-to-neutral<br />
Voltage line-to-line<br />
Voltages are calculated every momentary interval and are the average RMS<br />
values for that momentary interval.<br />
3.1.1.5 Current Measurements<br />
The Libra-3 <strong>meter</strong> provides the following Current measurement choics:<br />
<br />
<br />
In (neutral current)<br />
Current<br />
OPERATING INSTRUCTIONS 23 / 35
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