TBC OPR OPR 071019
1-1
SECTION 1 - INTRODUCTION
1.1
SCOPE OF MANUAL
This manual contains instructions for the installation and operation of the TBC 60-25M Battery
Charger Power Supply manufactured by Kepco, Inc., Flushing, New York, U.S.A.
1.2
GENERAL DESCRIPTION
The Kepco TBC Series of Telecommunications Battery Chargers, hereafter referred to as TBC,
consists of three major groups of Power Supplies. They are used for charging 12, 24, and 48
Volt batteries respectively, and are capable of delivering up to 120 Amps. In addition the TBC
60-25M can charge batteries ranging from 3 to 60 Volts. TBC are designed to Float-Charge
large battery arrays such as those found in telephone operating systems.
A sensing circuit is used to indicate whether current is flowing into or out of the TBC. The inter-
nal logic reports Charging Stopped when it senses that the battery is not absorbing current from
the Charger but rather is supplying current back to the TBC. This sensor is very sensitive. It can
respond to a reverse current of less than 50 milliamperes for a Charger capable of delivering up
to 120 Amperes.
1.3
SPECIFICATIONS
Table 1-2 lists specifications for Float, Equalize and Overvoltage Protection for all models. Table
1-2 indicates specifications for parameters that vary for different TBC models; Table 1-3 lists
general specifications that apply to all TBC models.
1.4
GENERAL FEATURES
•
Input Circuit Breaker
•
Status Indicators
— Power ON - green LED
— Float Mode - green LED
— Equalize Mode - amber LED (flashing)
— Charging Stopped - red LED
•
Meters, 3-1/2 Digit LCD
— Voltmeter (separate connection also provided for remote monitoring)
— Ammeter
•
50/60 Hz Operation
•
Current Balance terminal provided for parallel operation
•
Equalize Charger Timer built in
— 00.0 -99.9 hours
— Start/Reset pushbuttons
•
Logic (TTL) output for status monitoring
— Power ON
— Float/Equalize mode
— Charging Stopped
FIGURE 0-1.
