520 9424200994 Rev N
Interval (s)
Control, Synchronizer (25A)
Sets the maximum correctional
pulse interval for voltage control to
Control, Synchronizer (25A)
Sets the frequency control output
mode to proportional
Width (s)
Control, Synchronizer (25A)
Sets the maximum correctional
pulse width for frequency control to
Interval (s)
Control, Synchronizer (25A)
Sets the maximum correctional
pulse interval for frequency control
Compensation
Control, Synchronizer (25A)
Disables angle compensation
Control, Synchronizer (25A)
Sets the live voltage threshold to
90% of the nominal setting
Control, Synchronizer (25A)
Sets the dead voltage threshold to
10% of the nominal setting
Control, Synchronizer (25A)
Sets the current VM status drop out
delay to 499.9 milliseconds
Step 2: Use BESTCOMSPlus to configure the BESTlogicPlus Programmable Logic shown in Figure
315.
• Blocking is disabled.
• 25A is initiated.
• OUT1 closes for 25A Close Breaker.
• OUT2 closes for Lower Freq.
• OUT3 closes for Raise Freq.
• OUT4 closes for Lower Voltage.
• OUT5 closes for Raise Voltage.
• OUT6 closes for synchronization criteria met.
• OUT7 closes for voltage monitor criteria met.
• OUT8 closes for breaker open after maximum close attempts.
• Output Alarm closed during synchronizing.
• Event recording is enabled.
Step 3: Prepare to monitor the Voltage Difference function operation. Operation can be verified by using
BESTCOMSPlus to monitor the status of Metering Explorer, Status, Digital Points (1536-1567),
25A Volt Diff.
Step 4: Connect a balanced, three-phase voltage source of 69.28 Vpn, 60 Hz to BE1-11g terminals C13
(A-phase), C14 (B-phase), C15 (C-phase), and C16 (neutral). Apply a single-phase, 60-hertz
voltage of 69.28 ∠0° Vpn to terminals C17 (Vx-phase) and C18 (Vx-neutral). The 25A Volt Diff
digital point should light in BESTCOMSPlus.
Step 5: Slowly increase the line voltage until the 25A Volt Diff digital point turns off. This should happen
at 79.67 V ±1 V. Record the result.
Step 6: Uncheck the Voltage Source > Volt Dest checkbox on the Synchronizer (25A) settings screen
and send the settings to the BE1-11g.
Step 7: Decrease the voltage until the 25A Volt Diff digital point turns on (69.28 V). Record the result.
Synchronizer (25A) Test BE1-11g