S&C PMH Installation Manual
Source-transfer pad-mounted gear outdoor distribution
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Also See for PMH:
- Manual (15 pages) ,
- Instructions for operation manual (35 pages) ,
- Inspection manual (11 pages)
Table of Contents
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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
Understanding Safety-Alert Messages . . . . . . . . . . . 3
Following Safety Instructions . . . . . . . . . . . . . . . . . . 3
Replacement Instructions and Labels . . . . . . . . . . . 3
Location of Safety Labels . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
March 30, 2020
© S&C Electric Company 1995-2020, all rights reserved
With Micro-AT
Installation
Page
Section
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation
Access to the Interior . . . . . . . . . . . . . . . . . . . . . . . . 9
Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Cable Terminations . . . . . . . . . . . . . . . . . . . . . . . . . .11
S&C Current Sensors . . . . . . . . . . . . . . . . . . . . . . . .15
Fault Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Completing the Installation . . . . . . . . . . . . . . . . . . . .17
®
Source-Transfer Control
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Instruction Sheet 663-500
Page
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Summary of Contents for S&C PMH
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Page 1: Table Of Contents
Source-Transfer PMH Pad-Mounted Gear With Micro-AT ® Source-Transfer Control Outdoor Distribution (14.4 kV and 25 kV) Installation Table of Contents Section Page Section Page Introduction Shipping and Handling Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Inspection . -
Page 2: Introduction
Safety Precautions on pages 3 through 5 . The latest version of this publication is available online in PDF format at sandc.com/en/support/product-literature/. 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 this publication. Instruction Sheet... -
Page 3: Safety Information
Safety Information Understanding Several types of safety-alert messages may appear throughout this instruction sheet and on labels and tags attached to the S&C Source-Transfer PMH Pad-Mounted Gear. Safety-Alert Familiarize yourself with these types of messages and the importance of these various... -
Page 4: Location Of Safety Labels
DUAL PURPOSE BARRIER LABEL AND CABLE TIE REMOVAL LABEL WARNING 15 & 25KV PMH PROPRIETARY STATEMENT: THIS DOCUMENT AND ALL PREVIOUS ISSUES ARE THE SECRET AND CONFIDENTIAL PROPERTY OF S&C ELECTRIC COMPANY (“S&C”), 6601 NORTH RIDGE BOULEVARD, CHICAGO, ILLINOIS, AND NEITHER RECEIPT NOR POSSESSION THEREOF INFERS OR TRANSFERS ANY RIGHT IN OR LICENSE TO USE THIS DOCUMENT, THE SUBJECT MATTER THEREOF, OR ANY DESIGN OR TECHNICAL INFORMATION SHOWN THEREON, OR ANY RIGHT TO REPRODUCE THIS DOCUMENT OR ANY PART THEREOF. - Page 5 Safety Information Ç DANGER DANGER KEEP AWAY Hazardous voltage—more than 4000 volts. Failure to follow these instructions will likely cause shock, burns, or death. • ALWAYS consider all circuits and component parts live until completely de-energized, tested, grounded, and tagged or properly identified. •...
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Page 6: Safety Precautions
Safety Precautions DANGER S&C Source-Transfer PMH Pad-Mounted Gear operates at high-voltage. Failure to observe the precautions below will result in serious personal injury or death. Some of these precautions may differ from company operating procedures and rules . Where a discrepancy exists, follow your company’s operating procedures and rules . -
Page 7: Overview
Source-Transfer PMH models that include the S&C Micro-AT Source-Transfer Control provide programmed control of all switching functions associated with automatic source transfer. -
Page 8: Shipping And Handling
Therefore, care must be taken when lifting the gear to avoid injury and equipment damage . Packing S&C Source-Transfer PMH Pad-Mounted Gear is fastened STEP 3. Arrange the hoist slings to distribute the lifting to a wood skid for shipment. Any components specified, forces equally between the lifting tabs. -
Page 9: Access To The Interior
Installation Follow these steps to install the pad-mounted gear: Access to the Interior To open the doors: Access to the interior of STEP 1. S&C Pad-Mounted Gear and its low-voltage control compartment is controlled by the S&C Penta-Latch® Mechanism, which must be opened with a pentahead socket wrench or tool, except when hexhead actuators (catalog number suffi x “-B1”... -
Page 10: Placement
Installation The left-hand door to the interior of the gear Door-latching is secured closed by a rotating latch and is mechanism overlapped by the right-hand door, which is disengaged equipped with the Penta-Latch Mechanism. The left-hand door can be opened after opening the right-hand door. -
Page 11: Cable Terminations
Installation Cable Terminations STEP 4. Optional cable guides (catalog number suffi x “-M2” or “-M3”), if specifi ed, include cable- STEP 3. To facilitate makeup and connection of cable support brackets (packed separately) and terminations to switch terminals, switch mounting angles (factory installed when an interphase and end barriers (where applicable) optional base... - Page 12 Installation Dimensions in inches (mm) Minimum clearance from energized parts to barriers: 1 (25) for 14.4 kV 2¼ (57) for 25 kV Minimum clearance from energized parts Minimum clearance to barriers: from energized parts ½ (13) for 14.4 kV to electrical ground: 1¼...
- Page 13 Installation STEP 5. Make up cable terminations following the cable- NOTICE terminator manufacturer’s instructions. While the interior of S&C Pad-Mounted Gear is When connecting cable terminators, protected from direct exposure to the elements, avoid placing any intentional strain on the gear is inherently in an outdoor environment switch or fuse terminals .
- Page 14 Installation STEP 6. Before connecting the cable terminators to the aluminum terminal pads, thoroughly wire- brush aluminum contact surfaces to remove Belleville any dirt or foreign materials as well as natural spring washers surface oxides. Immediately coat both contact surfaces to ½-inch (13 mm) beyond the joint with a uniform layer of Penetrox®...
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Page 15: S&C Current Sensors
Installation The bottom plate in each terminal-block WARNING compartment is removable to facilitate drill- ing an entrance hole for the lead wires. When Low-voltage wiring routed inside the pad-mounted conduit is not used, protect the lead wires from gear enclosure must be a minimum of 6 inches abrasion against the knockout opening with (152 mm) at 14 .4 kV and 7½... - Page 16 Installation STEP 8. Refer to the applicable wiring diagram and Note: The terminal blocks furnished with the optional make the appropriate connections from the auxiliary switches (catalog number suffix “-C9” or “-C10”), current sensors (with polarity marks on top) to optional Remote Indication feature (catalog number the terminal blocks.
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Page 17: Fault Indicators
Installation Fault Indicators WARNING Optional mounting provisions fault STEP 10. Verify the rear of each switch barrier is indicators (catalog number suffix “-F1” or “-F2”) correctly positioned in its support notch are available. Fault indicators are to be on the switch frame and the front of furnished by the user and installed in accordance the barrier is securely fastened to the with the manufacturer’s instructions. - Page 18 Installation If the gasket does not compensate for an (f) Store spare SMU-20® Fuse Units or SM-4® Refill uneven foundation, grout the bottom of the Units (as applicable) in the fuse-storage racks enclosure as necessary. The grout should be inside the fuse-compartment doors. Storage for recessed enough to permit caulking.
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Page 19: Dielectric Testing
Dielectric Testing When high-voltage dielectric tests will be performed on S&C Source-Transfer PMH Pad-Mounted Gear, special precautions should be taken to prevent damage to the voltage sensors and voltage limiters. Refer to S&C Instruction Sheet 591-500. S&C Instruction Sheet 663-500...
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