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S&C Instruction Sheet 663-500    3

Safety Information

Understanding  

Safety-Alert 

Messages

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. 
Familiarize yourself with these types of messages and the importance of these various 
signal words: 

 DANGER

“DANGER” identifies the most serious and immediate hazards that will likely 
result in serious personal injury or death if instructions, including recommended  
precautions, are not followed .

 WARNING

“WARNING” identifies hazards or unsafe practices that can result in serious  
personal injury or death if instructions, including recommended precautions, are 
not followed .

 CAUTION

“CAUTION” identifies hazards or unsafe practices that can result in minor personal 
injury if instructions, including recommended precautions, are not followed .

NOTICE

“NOTICE” identifies important procedures or requirements that can result in 

 

product or property damage if instructions are not followed .

Following Safety 

Instructions

If you do not understand any portion of this instruction sheet and need assistance, contact 
your nearest S&C Sales Office or S&C Authorized Distributor. Their telephone numbers 
are listed on S&C’s website 

sandc.com

, or call the S&C Global Monitoring and Support 

Center at 1-888-762-1100.

NOTICE

Read this instruction sheet thoroughly and carefully 
before installing your S&C Source-Transfer PMH 

 

Pad-Mounted Gear .  

Replacement 

Instructions  

and Labels

If additional copies of this instruction sheet are needed, contact your nearest S&C Sales 
Office, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.

It is important that any missing, damaged, or faded labels on the equipment be replaced 

immediately. Replacement labels are available by contacting your nearest S&C Sales 
Office, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.

Содержание PMH

Страница 1: ...nstruction Sheet 2 Retain this Instruction Sheet 2 Proper Application 2 Warranty 2 Safety Information Understanding Safety Alert Messages 3 Following Safety Instructions 3 Replacement Instructions and...

Страница 2: ...C Source Transfer PMH Pad Mounted Gear Designate a location where you can easily retrieve and refer to this publication Proper Application WARNING The equipment in this publication is only intended f...

Страница 3: ...autions are not followed NOTICE NOTICE identifies important procedures or requirements that can result in product or property damage if instructions are not followed Following Safety Instructions If y...

Страница 4: ...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 D...

Страница 5: ...l circuits and component parts live until completely de energized tested grounded and tagged or properly identified Do not work on or near this equipment unless you 1 Know and obey your employer s wor...

Страница 6: ...ng any device that is to be inspected replaced serviced or repaired in the high voltage compartments 9 MAINTAINING PROPER CLEARANCE Always maintain proper clearance from energized components 10 SWITCH...

Страница 7: ...ons about field programming and opera tion of the Micro AT control refer to S C Instruction Sheet 515 500 These instruction sheets along with a catalog dimensional drawing showing cable locating and a...

Страница 8: ...ed by the packing materials and will also prevent wind induced abrasion from loose cardboard Storage S C Source Transfer PMH Pad Mounted Gear should installed and energized immediately When the gear i...

Страница 9: ...socket wrench or tool when catalog number suffix B1 or B2 is specified to unlatch the Penta Latch Mechanism by rotating the actuator counterclockwise approximately 60 degrees against spring resistanc...

Страница 10: ...latched a padlock may be inserted into the hasp Placement STEP 2 At the installation site remove all separately packaged components shipped in the pad mounted gear enclosure and set them aside in a p...

Страница 11: ...the saddle of the bracket or install the cable wrap until instructed to do so in Step 5 on page 13 Figure 5 Side view of the switch showing the interphase barrier attachment points terminal pad conne...

Страница 12: ...or 14 4 kV 2 57 for 25 kV Minimum clearance from energized parts to barriers 13 for 14 4 kV 1 32 for 25 kV Minimum clearance from energized parts to electrical ground 6 152 for 14 4 kV 7 191 for 25 kV...

Страница 13: ...taping it with a suitable material Two position cable terminator adapters are provided at the fuse hinge assemblies See Figure 7 These adapters can be placed in their alternate positions when require...

Страница 14: ...elleville washers are flat Then back off one half turn Do not use lockwashers with Belleville washers For tinned copper or tinned bronze connectors Use inch galvanized steel hardware with one Bellevil...

Страница 15: ...n accordance with the wiring diagram provided The automatic source transfer scheme will not operate properly when only six current sensors are installed S C Current Sensors STEP 7 Six S C Current Sens...

Страница 16: ...alog number suffix C9 or C10 optional Remote Indication feature catalog number suffix Y4 or optional Supervisory Control feature catalog number suffix Y6 are also located in the terminal block compart...

Страница 17: ...ier support angle at the front of the switch compartment Make sure the clearance from the barriers to energized parts and from the barriers to terminator skirts conforms to the minimum dimensions spec...

Страница 18: ...barriers Prolonged exposure to corona discharge can damage the barriers and result in a flashover injury and equipment damage f Store spare SMU 20 Fuse Units or SM 4 Refill Units as applicable in the...

Страница 19: ...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 limit...

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