THOMSON TSC 80, Service Manual, Page: 15 / 41

TSC 80 TRANSFER SWITCH CONTROLLER
PM063 Rev 7 09/02/27 Thomson Technology
11
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Engine start timer 0-60 sec. (adjustable)
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Engine cooldown timer 0-30 min. (adjustable)
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Neutral position delay timer 0-60 sec. (adjustable)
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Local utility power fail simulation test pushbutton & LED, door mounted
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Remote utility power fail simulation test pushbutton input (via terminal block)
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Load on utility supply & load on generator supply LED’s, door mounted
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Utility and generator source available LED’s, door mounted
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Weekly plant exercise timer (30 min. on load) manually initiated
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Local plant exercise initiate pushbutton & LED, door mounted
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Engine start contact (10A, 120/240VAC resistive max.)
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Load on utility auxiliary contact (Qty 1 only, 10A, 120/240VAC, Form C)
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Load on generator auxiliary contact (Qty 1 only, 10A, 120/240VAC, Form C)
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Transfer fail/forced transfer logic
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Automatic force transfer to alternate supply should load voltage become de-
energized
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50 or 60Hz capable (115V control power)
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Remote Load Test/Peak Shave Input
2.4. APPLICATION INFORMATION
2.4.1. AC VOLTAGE SENSING INPUT
The TSC 80 can accept direct AC voltage sensing inputs on the generator and
utility supplies from 120-600VAC (nominal).
Note:
Direct input voltage sensing
can only be used when the system utilizes a 3 phase, 4 wire distribution system
which has the neutral conductor solidly grounded. For 3 phase, 3 wire systems
(i.e. no neutral) or high voltage systems, potential transformers must be used.
Refer to FIGURE 3 for voltage sensing connections.