Single Phase Voltage Current Frequency Relay VAF-1P

Key’s :

1) HOLD: To hold the Voltage & Current Display in Normal
Mode. Used to increment the set point/password in SET mode.
2) SET: If pressed once, HOUR Counter is displayed. If Pressed twice, shows set CT ratio. If pressed thrice, it will ask for password to enter into SET CT Ratio mode Or SET Current Offset Mode . Now enter Password with the help of HOLD key (for incrementing). & SET Key (for decrementing). Enter correct password & wait for 2 sec. According to the given password it will enter into SET CT Ratio Mode or SET Current Offset Mode. Now HOLD
& SET keys can be used to increment/decrement to set the desired value. Wait for 5 sec. to come out of SET Mode.

Working :-

VAF meter displays the Voltages in the first row, Second row displays frequency & Third row displays the Ampere Values of the three Phases, in the scrolling pattern. To stop the Scrolling Press the HOLD Key and Scrolling is stopped, to release the hold, Press HOLD key
again. To enter the Set mode press SET key.
1. (When key encounter first press), HOUR Counter is displayed.
2. (When key encounter second press), CT-Ratio Which is set is displayed.
3. (When key encounter Third press), Password is Asked for changing Ct-Ratio/Current Offset.
Now HOLD key behaves as an increment key & SET key Behaves as a decrement key. Separate Passwords are assigned for Ct-Ratio & Current Offset .To change Ct Ratio Enter CT-Ratio’s password in set mode. CT-Ratio’s can be scrolled using HOLD & SET key. Select the CTRatio and wait for 3 sec. On completing 3 sec. CT-Ratio is saved and display is returned to normal Run mode. To change Current Offset
Enter Current Offset‘s Password in set mode. Using HOLD & SET key increment or decrement the values to Be set. Ranges can be set in between 0 & 10 only. The selected value Is added into the Current’s Value (A).
i.e. if 1 is selected 1A (Ampere) is added to current’s value. If 10 is selected 10A is added to the Current’s value. After 3 sec.
Display is returned to normal Run mode.

Terminal: INPUT 0-5Amp
LINE IN/LINE OUT
SUPPLY 230 VAC
L N