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GE Zenith Controls 11
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MX150 Operation and Maintenance Manual (70R-2000)
In addition to the features listed under the
MSTDG Option Package, this enhanced package
includes the following features:
A3
Additional Auxiliary contact: closed when switch is in
Source 2 position.
A4
Additional Auxiliary contact: Closed when the transfer
switch is in Source 1 position.
CDP (replaces CDT)
Clock Exerciser Load/ No Load: Allows the Generator
to start and run unloaded or to simulate a power
failure, start Generator and run under load.
Can be configured by end user for 1, 7, 14,
28, 365 day cycle.
Standard Features, MEXEG Option Pkg.
VI
Voltage Imbalance (Three Phase)
For a three phase source, this feature monitors phase
voltage ratios based on a selected range within a
selected time window. Should any phase fall below the
selected lower window limit or exceed the selected
higher window limit within the selected time frame,
the controller initiates transfer to the other source.
Range: 5% to 20% of Nominal voltage,
10 to 30 seconds window, user adjustable.
Resolution: 1% Increments
Minimum Differential: 2% between “Fail”
and “Restore” settings.
Factory default: 10% “Fail”, 8% “Restore, 30 Seconds.
See CFG Menu page 16 to configure ON or OFF.
See SET Menu page 17 to set Percentage and time windows
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