This is done with a speed so that the final impedance is reached after 1 second.
As the injected voltage is higher than 0.92
UBase
no START signal should be
activated.
3.
With reduced amplitude of the injected voltage to 0.8
UBase
the current
amplitude and angle is changed to a value ZC/2.
This is done with a speed so that the final impedance is reached after 1 second.
As the injected voltage is lower than 0.92
UBase
the START signal should be
activated.
4.
With reduced amplitude of the injected voltage to 0.8
UBase
the current
amplitude and angle is changed via ZC/2 to a value corresponding to half
IBase
and 180° between the injected current and voltage.
This is done with a speed so that the final impedance is reached after 1 second.
As the injected voltage is lower than 0.92
UBase
the START signal should be
activated. In addition to this the signal ZONE1 should be activated.
5.
Set
N1Limit
to 1 and repeat step
.
Now the signals TRIP1 and TRIP should be activated.
6.
With reduced amplitude of the injected voltage to 0.8
UBase
the current
amplitude and angle is changed via ZC + (ZA – ZC)/2 to a value corresponding
to half
IBase
and 180° between the injected current and voltage.
This is done with a speed so that the final impedance is reached after 1s. As the
injected voltage is lower than 0.92
UBase
the START signal should be activated.
In addition to this the signal ZONE2 should be activated.
7.
Set
N2Limit
to 1 and repeat step
.
Now the signals TRIP2 and TRIP should be activated.
Section 12
1MRK502053-UEN B
Testing functionality by secondary injection
120
Generator protection REG670 2.0 IEC
Commissioning manual
Summary of Contents for REG670 2.0 IEC
Page 1: ...Relion 670 series Generator protection REG670 2 0 IEC Commissioning manual ...
Page 2: ......
Page 16: ...10 ...
Page 30: ...24 ...
Page 58: ...52 ...
Page 62: ...56 ...
Page 76: ...70 ...
Page 90: ...84 ...
Page 94: ...88 ...
Page 108: ...102 ...
Page 246: ...240 ...
Page 252: ...246 ...
Page 267: ...261 ...