User Setting for Voltage & Frequency

Source 1

Voltage "Restore" Factory Default: 90%

This adjustment determines the minimum acceptable voltage required to transfer to Source 1.

Adjust via the SET menu. Range is 85% to 100% in 1% increments (see page 18).

Once satisfied, the T timer will begin timing to transfer to Source 1.

Voltage "Fail" Factory Default: 80%

This adjustment determines the low voltage threshold. Adjust via the SET menu. Range is 75% to 98% in 1% increments (see page 18).

"Fail" must be a minimum of 2 % below "Restore" setting. Once voltage falls below threshold, P timer begins timing to signal Source 2 Generator to start.

Source 2

Voltage "Restore" Factory Default: 90%

This adjustment determines the minimum acceptable voltage required to transfer to Source 2.

Adjust via the SET menu. Range is 85% to 100% in 1% increments (see page 18).

Once satisfied, the W timer will begin timing to transfer to Source 2.

Voltage "Fail" Factory Default: 80%

This adjustment determines the low voltage threshold. Adjust via the SET menu. Range is 75% to 98% in 1% increments (see page 18).

"Fail" must be a minimum of 2 % below "Restore" setting. Once voltage falls below threshold, T timer will be bypassed to expedite the transfer to Source 1.

Frequency "Restore"

Factory Default: 95%

This adjustment determines the minimum acceptable frequency required to transfer to Source 2.

Adjust via the SET menu. Range is 90% to 100% in 1% increments (see page 18).

Once satisfied, the W timer will begin timing to transfer to Source 2.

Frequency "Fail" Factory Default: 90%

This adjustment determines the low frequency threshold. Adjust via the SET menu. Range is 88% to 98% in 1% increments (see page 18).

"Fail" must be a minimum of 2 % below "Restore" setting. Once satisfied, the W timer will begin timing to transfer to Source 2.

Standard Features, MSTDG Option Pkg.

6

Test Switch, Momentary

A3

Auxiliary Contact: Closed when the switch is in Source 2 position.

DS

Disconnect Switch, Auto/Inhibit.

Inhibits transfer in either direction when in inhibit. Allows automatic operation when in Auto.

(800-4000 Amp units)

A4

Auxiliary Contact: Closed when the switch is in Source 1 position.

Calibrate

While monitoring the actual Phase to Phase voltage lev- els and Frequency with a calibrated test equipment, the Phase to Phase voltage sensing and Frequency can be adjusted accordingly. Calibration capabilities are available for Frequency and AB, BC, CA Phase to Phase voltage for both Sources. Adjust via SET menu (see page 18)

CDT

Load or NO-Load. One event exerciser with adjustable Engine exercise timer. Exercise duration can be set between 5 and 60 minutes in 1 minute increments. Can be configured to run every 1, 7, 14, or 28 days. Factory Default is 20minutes. When exerciser is impending, (*E*) appears in the upper right hand corner of LCD screen. See page 14-15 for instructions. Configured via CFG (see page 17). Set via SET menu (see page 18).

DT (Delayed Transition Only)

Time Delay from Neutral Switch position to Source 1 position. Adjustable 0-10 minutes in 1 second incre- ments. Standard setting is 5 seconds Adjust via SET menu (see page 18)

DW (Delayed Transition Only)

Time Delay from Neutral Switch position to Source 2 position. Adjustable 0-10 minutes in 1 second incre- ments. Standard setting is 5 seconds.Adjust via SET menu (see page 18)

E

Engine Start Contact

10

ZTG/ZTGD Operation and Maintenance Manual (70R-1000D)

GE Zenith Controls

Page 10
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GE 70R-1000D manual User Setting for Voltage & Frequency, Standard Features, Mstdg Option Pkg, Source, Calibrate