S&C PMH Inspection Manual
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S&C PMH Inspection Manual

S&C PMH Inspection Manual

Source-transfer pad-mounted gear
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S&C Source-Transfer PMH
Pad-Mounted Gear
Outdoor Distribution (14.4 kV and 25 kV)

Table of Contents

Section
Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Read this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . 2
Retain this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . 2
Proper Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warranty Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . 2
Understanding Safety-Alert Messages . . . . . . . . . . . . . 3
Following Safety Instructions . . . . . . . . . . . . . . . . . . . . . 3
Replacement Instructions and Labels . . . . . . . . . . . . . . 3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
July 2, 2018
© S&C Electric Company 1988-2018, all rights reserved
Inspection Recommendations
Page
Inspection Recommendations for Units
Equipped with Micro-AT
Control or the AT-12 Source-Transfer Control
Section
Micro-AT Source-Transfer Control . . . . . . . . . . . . . . . . . 5
AT-12 Source-Transfer Control . . . . . . . . . . . . . . . . . . . . 5
Table 1. Inspection Procedures for Pad-Mounted
Gear Equipped with Micro-AT Source-Transfer
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 2. Inspection Procedures for Pad-Mounted
Gear Equipped with AT-12 Source -Transfer
Control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3. Inspection and Maintenance Procedures for
the Enclosure and for Components in High-Voltage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Source-Transfer
®
Instruction Sheet 663-590
Page

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  • Page 1: Table Of Contents

    S&C Source-Transfer PMH Inspection Recommendations for Units Pad-Mounted Gear Equipped with Micro-AT Source-Transfer ® Outdoor Distribution (14.4 kV and 25 kV) Control or the AT-12 Source-Transfer Control Inspection Recommendations Table of Contents Section Page Section Page Introduction General Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Micro-AT Source-Transfer Control .

  • Page 2: Introduction

    3 and 4. The latest version of this publication is available online in PDF format at sandc.com/Support/Product-Literature.asp Retain this This instruction sheet is a permanent part of your S&C Source-Transfer PMH Pad-Mounted gear. Designate a location where you can easily retrieve and refer to it. Instruction Sheet...

  • Page 3: Safety Information

    Understanding There are several types of safety-alert messages which may appear throughout this instruction sheet as well as on labels and tags attached to the S&C Source-Transfer PMH Safety-Alert Pad-Mounted gear. Familiarize yourself with these types of messages and the importance Messages of the various signal words, as explained below.

  • Page 4: Safety Precautions

    Safety Precautions DANGER S&C Source-Transfer PMH Pad-Mounted Gear operate at high-voltage . Failure to observe the precautions below will result in serious personal injury or death. Some of these precautions may differ from your company’s operating procedures and rules . Where a discrepancy exists, follow your company’s operating...

  • Page 5: General

    Refer to S&C Instruction Sheet 663-503, “S&C Source- not recommended because such abrasives or solvents Transfer PMH Pad-Mounted Gear: With Micro-AT® Control” will damage the switchgear . for operating instructions regarding barriers, fusing, and switching—as well as for instructions on decoupling the...
  • Page 6 Table 1 Table 1. Inspection Procedures for Pad-Mounted Gear Equipped with Micro-AT Source-Transfer Control ① Item Procedures Switch operators 1 . Place the MANUAL/AUTOMATIC operation selector switch on the Micro-AT control in the Manual position and decouple both operators from their associated Mini-Rupter Switches . (Switching operations will result in temporary service interruptions if the operators are coupled .) 2 .
  • Page 7 Table 1 Table 1. Inspection Procedures for Pad-Mounted Gear Equipped with Micro-AT Source-Transfer Control Continued ① — Item Procedures Optional overcurrent- 1 . If the test keys are not enabled, press the <Test> menu key . Then press the <Last> item key . The Enable Test Keys item will lockout feature (catalog appear on the display .
  • Page 8 Table 2 Table 2. Inspection Procedures for Pad-Mounted Gear Equipped with AT-12 Source-Transfer Control ① Item Procedures Voltage-sensor signal 1 . Place the MANUAL/AUTOMATIC operation selector switch in the Manual position, and decouple both operators from their adjustments and associated Mini-Rupter Switches . (Switching operations will result in temporary service interruptions if the operators are coupled) . measurements 2 .
  • Page 9 Table 2 Table 2. Inspection Procedures for Pad-Mounted Gear Equipped with AT-12 Source-Transfer Control Continued ① — Item Procedures Optional overcurrent- 1 . With the MANUAL/AUTOMATIC operation selector switch in the Automatic position, simulate a fault cleared by feeder fuses lockout feature (“62LR”...
  • Page 10 Table 3 Table 3. Inspection and Maintenance Procedures for the Enclosure and for Components in High-Voltage Compartments ① WARNING When access to high-voltage compartments is required, 10 . Make certain the enclosure is properly grounded to the station or facility ground . No equipment should be it should be restricted to qualified persons who observe the following procedures: returned to service unless such grounds are properly...

  • Page 11: Compartments

    Table 3 Table 3. Inspection and Maintenance Procedures for the Enclosure and for Components in High-Voltage Compartments —Continued ① Item Procedures Inspect and clean 1 Visually inspect the interior of each compartment for excess dirt, weeds, rodent, reptile, and insect intrusion . interior 2 .

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