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CHARACTERISTICS
27
NV021 - Manual - 08 - 2012
Conventions
Phase rotation direction
The conventional rotation direction for the voltage phasors is counter-clockwise.
Cyclic phase sequence order
For three phase rotating voltages, a direct cyclic sequence is defi ned when the three phases are
L1, L2, L3 ordered, while an inverse cyclic sequence is defi ned when the three phases are L1, L3, L2
ordered.
—
fasori.ai
fasori.ai
fasori1.ai
U
L1
U
L3
U
L2
U
L1
U
L2
U
L3
D i r e c t s e q u e n c e c y c l i c o r d e r
I n v e r s e s e q u e n c e c y c l i c o r d e r
fasori1.ai
U
L1
U
L3
U
L2
U
L1
U
L2
U
L3
D i r e c t s e q u e n c e c y c l i c o r d e r
I n v e r s e s e q u e n c e c y c l i c o r d e r