| Normal voltage |
C0 |
v\left( t \right) = A\left\{ {1 \pm \alpha \left[ {u\left( {{t_2}} \right) - u\left( {{t_1}} \right)} \right]} \right\}{\rm{\;sin\;}}\left( {\omega t} \right)
|
α < 0.1 |
| Sag |
C1 |
v\left( t \right) = A\left\{ {1 - \alpha \left[ {u\left( {{t_2}} \right) - u\left( {{t_1}} \right)} \right]} \right\}{\rm{\;sin\;}}\left( {\omega t} \right)
|
0.16 ≤ α ≤ 0.23 |
| Swell |
C2 |
v\left( t \right) = A\left\{ {1 + \alpha \left[ {u\left( {{t_2}} \right) - u\left( {{t_1}} \right)} \right]} \right\}{\rm{\;sin\;}}\left( {\omega t} \right)
|
0.2 ≤ α ≤ 0.28 |
| Interruption |
C3 |
v\left( t \right) = A\left\{ {1 - \alpha \left[ {u\left( {{t_2}} \right) - u\left( {{t_1}} \right)} \right]} \right\}{\rm{\;sin\;}}\left( {\omega t} \right)
|
0.075 < α ≤ 0.2 |
| Harmonics |
C4 |
\matrix{ {v\left( t \right)} \hfill & = \hfill & {A{\rm{\;sin\;}}\left( {\omega t} \right) + {h_3}{\rm{\;sin\;}}\left( {3\omega t} \right)\left[ {u\left( {{t_{3h2}}} \right) - u\left( {{t_{3h1}}} \right)} \right]} \hfill \cr {} \hfill & {} \hfill & { +\, {h_5}{\rm{\;sin\;}}\left( {5\omega t} \right)\left[ {u\left( {{t_{5h2}}} \right) - u\left( {{t_{5h1}}} \right)} \right]} \hfill \cr {} \hfill & {} \hfill & { + \,{h_7}{\rm{\;sin\;}}\left( {7\omega t} \right)\left[ {u\left( {{t_{7h2}}} \right) - u\left( {{t_{7h1}}} \right)} \right]} \hfill \cr }
|
0 ″ hi ″ 0.15 |
| Flicker |
C5 |
{\rm{f}}\left( t \right) = \left( {1 + {\alpha _f}sin\left( {{\beta _f}\omega t} \right)} \right)sin\left( {\omega t} \right)
|
αf = 0.1 − 0.15, βf = 5 − 7.5 |
| Sag with harm |
C6 |
\matrix{ {v\left( t \right)} \hfill & = \hfill & {A\left\{ {1 - \alpha \left[ {u\left( {{t_{sag2}}} \right) - u\left( {{t_{sag1}}} \right)} \right]} \right\}{\rm{\;sin\;}}\left( {\omega t} \right)} \hfill \cr {} \hfill & {} \hfill & { +\, {h_3}\sin \left( {3\omega t} \right)\left[ {u\left( {{t_{3h2}}} \right) - u\left( {{t_{3h1}}} \right)} \right]} \hfill \cr {} \hfill & {} \hfill & { +\, {h_5}\sin \left( {5\omega t} \right)\left[ {u\left( {{t_{5h2}}} \right) - u\left( {t{5_{5h1}}} \right)} \right]} \hfill \cr {} \hfill & {} \hfill & { +\, {h_7}\sin \left( {7\omega t} \right)\left[ {u\left( {{t_{7h2}}} \right) - u\left( {{t_{7h1}}} \right)} \right]} \hfill \cr }
|
0.05 ≤ α ≤ 0.15 |
| Swell with harm |
C7 |
\matrix{ {v\left( t \right)} \hfill & = \hfill & {A\left\{ {1 + \alpha \left[ {u\left( {{t_2}} \right) - u\left( {{t_1}} \right)} \right]} \right\}{\rm{\;sin\;}}\left( {\omega t} \right)} \hfill \cr {} \hfill & {} \hfill & { +\, {h_3}\sin \left( {3\omega t} \right)\left[ {u\left( {{t_{3h2}}} \right) - u\left( {{t_{3h1}}} \right)} \right]} \hfill \cr {} \hfill & {} \hfill & { +\, {h_5}\sin \left( {5\omega t} \right)\left[ {u\left( {{t_{5h2}}} \right) - u\left( {{t_{5h1}}} \right)} \right]} \hfill \cr {} \hfill & {} \hfill & { + \,{h_7}\sin \left( {\omega t} \right)\left[ {u\left( {{t_{7h2}}} \right) - u\left( {{t_{7h1}}} \right)} \right]} \hfill \cr }
|
01. ≤ α ≤ 0.18 |
| Oscillatory transient |
C8 |
\matrix{ {v\left( t \right)} \hfill & = \hfill & {A{\rm{\;sin\;}}\left( {\omega t} \right) + \beta {\rm{\;exp\;}}\left[ { - \left( {t - {t_1}} \right)/\tau } \right]} \hfill \cr {} \hfill & {} \hfill & { \cdot \sin \left[ {{\omega _n}\left( {t - {t_1}} \right)} \right]\left[ {u\left( {{t_2}} \right) - u\left( {{t_1}} \right)} \right]} \hfill \cr }
|
0.1 < β < 0.8,0.066 < τ 0.008ωn = 2π fn, 500 ≤ fn ≤ 1500 |
