![](/images/new-backgrounds/1146852/14685223x1.webp)
Standard Features, MEXEG Option Pkg.
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.
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 17 to configure ON or OFF. See SET Menu page 18 to set Percentage and time windows
■ 12 | ZTG/ZTGD Operation and Maintenance Manual | GE Zenith Controls ■ |