Eaton Cooper Power Series Installation, Operation And Maintenance Manual

Also see for COOPER POWER SERIES: Installation and operation instructions Installation instructions Installation instructions Installation and operation instructions Operation instructions

Contents

Eaton Cooper Power Series Installation, Operation And Maintenance Manual Manual pdf 24 page image

Removal of controlThe control may be removed from the regulator with theregulator energized. Record settings, etc., to facilitatereplacement of the control.To open the control, unscrew the captive knob(s) on the leftside of the panel. This allows the control to swing open onits hinges. With the control open, the back panel is readilyaccessible. The design of the control enclosure, back panel,and control enables easy replacement of the control, leavingthe back panel, control enclosure, and cable intact. Toremove the control, proceed as follows:WARNINGFlashover Hazard Push the C shorting switch closedbefore attempting to remove the front panel Failure tocomply can open the regulator CT circuit, producinga flashover in the control, causing personal injury andequipment damage VR-T210 01. Push closed the current shorting switch C. This shortsout the secondary of the regulator CT.ote:N Regulators shipped with a quick-disconnect cablecontain a solid-state CT monitoring circuit in thejunction box. This device automatically places aburden on the CT anytime the CT circuit is opened.For consistency and redundancy, it is recommendedthat the CT shorting switch be used whenever it ispresent on the back panel.2. Pull open disconnect switch V1 (and V6 if present). Thisde-energizes terminal board TB3 (or TB2 if present).3. Disconnect the control from the back panel at TB3 (orTB2 if present), located at the bottom of the back panel.4. Disconnect the control ground lead from the backpanel.The control can now be lifted off its hinges. Care should betaken to prevent damage to a control while in transit and/orstorage.Replacement of controlWARNINGFlashover Hazard Do not pull open the current shortingswitch C until the TB3 (or TB2 if present) connection iscompleted Failure to comply can open the regulator CTsecondary and cause a flashover in the control, causingpersonal injury and equipment damage VR-T211 0To place a control into the control enclosure, follow theprocedure outlined below:1. Engage control on enclosure hinges.2. Connect control ground lead to back panel.3. Reconnect control to back panel at TB3 (or TB2 ifpresent), located at the bottom of back panel.4. Push closed the disconnect switch V1 (and V6 ifpresent).5. Pull open the current shorting switch C.6. Close the control and tighten locking screw(s).18INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225003EN April 2018CL-7 Voltage Regulator Control