S&C BankGuard PLUS, Setup Instructions

Page: 40 / 50

1011-530 40
Location
Enter your company’s standard location identification information. This information
may help identify the control device to the SCADA master station operator and appears
on all reports generated from the control device. You can enter up to 100 characters.
Unbalance
Compensation
Feature The Unbalance Compensation (UBC) feature compensates for variances
which result in an error voltage existing between the capacitor bank neutral
point and ground. The variances may be due to manufacturing tolerances of
the capacitor units or fixed system voltage unbalances. The type of
variance which may be compensated depends on the setting of the control’s
setpoints and the number of potential monitoring devices which are
installed. The setting and sensor configuration for each type of installation
is listed in Table 4. See Figure 6.
Installation
Type Unbalance
Compensation
Type Potential Device Configu-
ration Unbalance Compensa-
tion Provided
Ungnd Wye Cap Disabled One neutral-point-to-ground
15-Volt-Ampere Potential
Device. No unbalance compensation
provided.
Ungrd Wye Cap Cap Only One neutral-point-to-ground
15-Volt-Ampere Potential
Device and one line 30-Volt-
Ampere Potential Device. Provides approximate unbal-
anced compensation for
inherent capacitor unit
unbalance.
Ungrd Wye Cap Cap/Line One neutral-point-to-ground
15-Volt-Ampere Potential
Device and Phase A, B, and
C line 30-Volt-Ampere
Potential Devices. Provides unbalance compen-
sation for fixed system volt-
age unbalance and/or
inherent capacitor bank
unbalance.
Gnd Wye Cap Disabled Phase A, B, and C tap-point-
to-neutral 30-Volt-Ampere
Potential Devices. Provides approximate unbal-
ance compensation for fixed
system voltage unbalance
and/or inherent capacitor
bank unbalance.
Gnd Wye Cap Cap Only Phase A, B, and C tap-point-
to-neutral 30-Volt-Ampere
Potential Devices and one
line 30-Volt-Ampere Poten-
tial Device. Provides approximate unbal-
anced compensation for
inherent capacitor bank
unbalance.
Ungnd Wye
Reactor Disabled One neutral-point-to-ground
15-Volt-Ampere Potential
Device. Provides unbalanced com-
pensation for inherent reac-
tor bank unbalances.