PKR39809-02

Example

The figure below shows current and voltage simulation with all angles referenced to A phase to earth voltage on the U bushing.

The resultant current measurements in WSOS display the angles as shown:

  • A Phase 330 - 0 (360) = -30

  • B Phase 215 - 240 = -25

  • C Phase 85 - 120 = -35

Figure 108
Current measurements in WSOS display the angles

The output of these CTs is sampled at the rate of 3200 samples per second
(at 50 Hz) by the PowerLogic ADVC Controller. The current values used by the protection algorithms are updated every 2.5 ms.

For measurement purposes 200 samples of the 5 ms data are accumulated into 500 ms data blocks and averaged over 2 s.

QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

Was this helpful?