Seaward Power Clamp - Manual (Page 18)

17
Phase Rotation
Line 3
Line 2
Line 1
NOTE :
- Connect the supposed three phase of power source as shown
above.
- The test is only available while the system frequency is stable.
Step 1. Set the rotary switch to the "W" position.
Step 2. Using the Navigator key to choose the "
" mode
Step 3. Connect the Red test lead to the supposed phase
Line 1, and the Black test lead to the supposed phase
Line 3.
a. if volt > 1000V, it will display “OLU” and flash; if volt <30V,
it will display “LoU”
b. If the frequency > 65Hz or < 45Hz, it will display “outF”
and flash.
c. If it is normal, then it will display “L1” and flash for about
3 sec.