Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
Issue 4 May 1998
Testing 6 - 1
6
Testing
Introduction
This section gives test procedures for newly installed and/or
operating rectifiers. If the plant in which a rectifier is being
installed has never been operational, the plant and controller
tests must be performed before the rectifier tests. Consult the
plant and controller product manuals for their installation test
procedures. Rectifiers can be tested on or off line. “On line”
means a battery string and/or office load is connected to the
rectifier. A dummy test load and a Battery Plant Simulator Test
Set are required for testing off line. See “Tools and Test
Equipment” below for a description of these items. For
troubleshooting and diagnostic procedures, refer to “Preparation
for Testing Off Line,” below. If you are unfamiliar with the
function of rectifier controls and indicators, read Section 2 of
this manual.
Precautions
When working on power systems, observe safety precautions in
Section 4 and those within each procedure.
•
Voltages required for the control relays, the Rectifier
Failure Alarm (RFA), and the ac contactor are derived from
the ac input voltage. Voltage is available to these circuits
whenever the ac service is available to the rectifier.
•
Remote sensing of rectifier output occurs via the plant
control cable connected to P2A on control board CM2. This
cable must be disconnected when internal sensing is
desired, as when testing off line, using a test load.
Warning
Do not turn the DC OUTPUT circuit breaker on, close an
external charge circuit breaker, or install an external charge
fuse until told to do so.
