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Instruction.Booklet.
IB48066
Effective November 2010
Instructions for Installation, Operation and Maintenance
of the Ampgard 720A Reduced Voltage Soft Starter
EATON CORPORATION www.eaton.com
Read and understand these instructions before attempting any
installation, operation or maintenance of the Ampgard Reduced
Voltage Soft Starter.
This equipment shall be installed and serviced only by qualified
electrical personnel.
Retain this document for future use.
DANGER
HAZARDOUS VOLTAGE
ALL POWER SOURCES MUST BE ISOLATED AND LOCKED OUT BEFORE
SERVICING THE EQUIPMENT.
READ AND UNDERSTAND THESE INSTRUCTIONS IN THEIR ENTIRETY
BEFORE INSTALLING, OPERATING, OR MAINTAINING THIS EQUIPMENT.
ONLY QUALIFIED PERSONS SHOULD INSTALL, MAINTAIN, ADJUST OR
REPAIR THESE UNITS. A QUALIFIED PERSON IS ONE WHO IS FAMILIAR
WITH THE CONSTRUCTION AND OPERATION OF THE EQUIPMENT AND THE
HAZARDS ASSOCIATED WITH IT.
Purpose
This.instruction.book.is.to.insure.the.safe.and.successful.installation,.
operation.and.maintenance.of.the.Ampgard.720A.Reduced.Voltage.
Soft.Starter.(RVSS) ...This.equipment.may.be.installed.as.an.individual.
structure.or.may.be.part.of.a.lineup.of.Ampgard.products .
Section 1: Introduction
1.1 Basic Description of a Single Unit
The.Ampgard.RVSS.is.designed.to.start.medium.voltage.motors.
at.reduced.voltages.with.specific.ramp.times.and.amperages ...An.
individual.unit.is.72.in.wide.x.30.in.deep.and.92.in.tall,.including.the.
main.bus ...An.additional.structure.for.incoming.line.cables.may.also.
be.supplied ...The.left.structure.is.referred.to.as.the.main.structure.
and.the.right.structure.is.the.RVSS.cell ...The.upper.portion.of.the.
main.structure.is.referred.to.as.the.main.cell.and.the.lower.portion.is.
the.bypass.cell ...(See.
Fig. 1.
)
Figure 1. Ampgard 720A RVSS Unit
Main..
Structure
RVSS.Cell
Main..
Cell
Bypass.
Cell