T H E C O N T I N U O U S P O W E R C O M P A N Y
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Section 2
GENERAL CHARACTERISTICS
2.1 CHARACTERISTICS
Overview
The Clary
SP Series
Traffic UPS is a turnkey, true on-line, power conditioner and battery backup or
uninterruptible power system (UPS) designed for the extreme environments found in traffic cabinets
(-40 to + 74 deg C).
The Clary
SP Series,
with its standard 41Ahr battery pack, is capable of operating, a full LED
intersection for over an hour at 1400W (watts) output. A typical intersection consuming 450W can
be powered for approximately 4 hours. In Red-Flash operation, which consume only about 300W,
over 6 hours of backup is possible. These times assume fully charged batteries at an ambient
temperature of 25C
.
Operation
The Traffic UPS is capable of producing – simultaneously -- full regenerated and regulated, true
sine wave power, with standby and continuous AC outputs. The Power Interface Module (PIM) is
the link between the utility power, the UPS power, and the loads.
When utility power is adequate, the PIM routes that power to the loads. Upon loss of utility power
the Traffic UPS routes UPS generated power to the loads. In the event of UPS failure and/or battery
depletion, the PIM will ensure that the UPS will drop out and, return to utility power when available.
The traffic control system will then default to normal operational mode.
The Power Interface Module (PIM) enables removal and replacement of the Traffic UPS without
shutting down the traffic control system (i.e. “hot swap” capability). Connectors are equipped with a
“safety interlock” feature.