In search of the equivalent neutral path resistance and the effective voltage for compliance with IEEE Std 1459-2010

This paper presents a practical method for a real-time measurement of the ratio ρ = r neq /r (r = line resistance, r neq = equivalent neutral path resistance) of a three-phase four-wire distribution feeder and advocates the possibility of ignoring the zero-sequence voltage component due to its reduc...

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Bibliographic Details
Main Authors: Macedo, Jose Rubens, Emanuel, Alexander E., Orr, John A.
Format: Conference Proceeding
Language:English
Subjects:
Effective apparent power
Electrical resistance measurement
Equivalent neutral path resistance
Grounding
IEEE Standards
IEEE Std 1459-2010
Loss measurement
Power measurement
Resistance
Voltage measurement
Zero-sequence voltage
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Summary:This paper presents a practical method for a real-time measurement of the ratio ρ = r neq /r (r = line resistance, r neq = equivalent neutral path resistance) of a three-phase four-wire distribution feeder and advocates the possibility of ignoring the zero-sequence voltage component due to its reduced magnitude in practical situations. The ratio ρ has a significant impact on the value of the apparent power as defined in IEEE Std 1459-2010. In practical terms, this quantity is time variable being a function of soil moisture and temperature. This work presents a proposal for measuring the equivalent neutral path resistance considering the smart metering technologies currently available.
ISSN:1944-9933
DOI:10.1109/PESGM.2016.7741716