Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Zero-sequence current

Based on IEEE-80 recommendations, the following simplified formula may be used to determine the zero sequence current in the event of a phase to ground fault ... [Pg.710]

Setup for measuring sequence currents for a cross-bonded cable (a) zero-sequence current and (b) positive-sequence current. [Pg.297]

Figure 3.8a shows the setup for measuring the zero-sequence current for a cross-bonded cable. [Pg.298]

The zero-sequence current can be obtained from Equation 3.51 as follows ... [Pg.298]

After solving Equation 3.68 for and then eliminating from Equation 3.66, the zero-sequence current becomes... [Pg.301]

The phase angle of the zero-sequence current mentioned in Table 3.1 demonstrates that grounding resistance at substations in both cross-bonded and solidly bonded cables significandy affects the zero-sequence current. As a result, there is litde difference in the zero-sequence impedance of the cross-bonded cable and the solidly bonded cable. The results indicate the importance of obtaining an accurate grounding resistance at the substations to derive accurate zero-sequence impedances of cable systems. [Pg.304]

Solving (3.68) for Vs and eliminating Vs from (3.66), the zero sequence current is found as... [Pg.253]


See other pages where Zero-sequence current is mentioned: [Pg.663]    [Pg.586]    [Pg.194]    [Pg.297]    [Pg.300]    [Pg.300]    [Pg.302]    [Pg.464]    [Pg.248]    [Pg.252]    [Pg.255]    [Pg.458]   


SEARCH



Zero-current

© 2024 chempedia.info