Lucent Technologies Lineage
®
2000 50A -48V 364A-3 SR Series Rectifier
2 - 6 Product Description
Issue 6 January 1997
Although the rectifiers are typically used in a battery plant, these
rectifiers can operate without batteries, making them suitable for
those applications where battery back-up is not necessary or is
achieved using an uninterruptible power supply (UPS).
Features
The following list describes the standard features designed into
the 364A3 rectifier.
Load Share: A DIP switch selectable option enables the
rectifier to share the plant load automatically with other SR
series rectifiers. The load share circuit is fail-safe, using an
isolated load share bus between the rectifiers. Upon failure, the
failed rectifier is disconnected from the load share bus.
Equalize: The rectifier, in conjunction with the ECS controller,
can charge batteries at higher voltages than the float voltage. A
separate potentiometer allows the equalize voltage to be set
independently of the float voltage. A front-panel LED indicates
when the rectifier is in equalize mode.
Parallel Operation: The rectifiers are capable of parallel
operation.
Safety Interlock: A mechanical interlock between the rectifier
and the RSA prevents the rectifier from being installed in the
RSA with the circuit breaker closed. On installation, the
interlock and associated circuits limit surges of current into the
rectifier output capacitors when the rectifiers are initially
connected to the battery bus.
Output Current "Walk-in": This circuit controls the time
required for the rectifier to reach full output current after it is
turned on. Initially, the output current is zero and is gradually
increased to the required output current in about 10 seconds at
full load. This feature minimizes the starting surge on the
customer's power source, which is especially useful when the
source is finite, such as with an engine alternator set.
Note
CB OFF must be lit and the DC OUTPUT breaker in the OFF
position to adjust the output of the rectifiers correctly in load
share mode.
