S&C Alduti-Rupter Switches Outdoor Distribution Installation And Operation Manual Download Page 26

26    S&C Instruction Sheet 761-525

Operation

Figure 36. Withdrawing the locking bar and disengaging 

the key interlock bolt.

Figure 37. Swinging the operating handle rapidly.

Opening and Closing the Switch

 DANGER

The interrupters and terminal pads of the Alduti-Rupter 
Switch may be energized with the interrupters in any 
position . Before inspecting, servicing, or repairing this 
switch or working on the conductors on either side of 
the switch, test for voltage using proper high-voltage 
test equipment . Then, install suitable grounding 
equipment . 
Failure to observe these precautions may result in 
serious injury or death .

NOTICE

This interrupter switch is not intended for breaking 
fault currents .

STEP  26.  

To operate the Alduti-Rupter Switch:

(a)  Remove the padlock from the locking bar on 

the operating handle assembly. Withdraw 
the locking bar. See Figure 36.

(b)  If the operating handle assembly is fur-

nished with a key interlock, disengage the 
interlock bolt.

(c)  Swing the handle 

rapidly

 to the fully 

Open

 

or fully 

Closed

 position. See Figure 37.

(d)  Always check that all three poles are fully 

open or fully closed.

(e)  Replace the locking bar and the padlock. 

Engage the key interlock, if applicable.

 WARNING

When opening or closing the switch do 
not slow down or stop part way . Arcing 
can occur if the switch is partially open or  
par tially  closed .

Summary of Contents for Alduti-Rupter Switches Outdoor Distribution

Page 1: ...Safety Instructions 4 Replacement Instructions and Labels 4 Location of Safety Labels 5 Safety Precautions 6 Shipping and Handling Inspection 7 Packing 7 Handling 8 Installation Mounting to Wood 9 Unc...

Page 2: ...rt product literature Retain this Instruction Sheet This instruction sheet is a permanent part of your Alduti Rupter Switch Designate a location where you can easily retrieve and refer to this publica...

Page 3: ...or implied or arising by operation of law course of dealing usage of trade or otherwise are excluded The only warranties are those stated in Price Sheet 150 or Price Sheet 153 and THERE ARE NO EXPRESS...

Page 4: ...ecautions 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...

Page 5: ...e Description Part Number A DANGER Electrocution Hazard G 6580 1 B WARNING Piercing Set Screws G 3176R1 C WARNING Handle Operation G 4400R5 D WARNING Electrocution Hazard Grounding Strap G 6596 This p...

Page 6: ...othing in accordance with safe operating procedures and rules 4 SAFETY LABELS AND TAGS Do not remove or obscure any of the DANGER WARNING CAUTION or NOTICE labels and tags Remove tags ONLY if instruct...

Page 7: ...SX suffix They include S1 One tubular fiberglass insulating section in vertical operating shaft S2 One Cypoxy Insulator unit in vertical operating shaft S6 Key interlock single lock for a locked open...

Page 8: ...fully Closed position during installation of the interphase and vertical operating pipe sections S C recommends tying the switch blades to their jaw contacts with wire or a cable tie WARNING DO NOT li...

Page 9: ...n the same order in which they will be mounted on the structure Protect the bearings from contamination by dirt mud oil etc If necessary use blocks to keep the bearings clear of the ground Attaching C...

Page 10: ...ilure to lift the switch properly can result in switch damage causing improper operation arcing or electrical shock STEP 4 Hoist the switch poles using the lifting angles provided and bolt them into p...

Page 11: ...with blades against their blade stops and the switch drive lever within 1 16 inch 2 mm of the closed stop bolt Tie the switch blades to their stationary main contact assemblies See Figure 7 Figure 6...

Page 12: ...the operating pipe section into the couplingandfinger tightentheclampbolt s c Adjust the operating pipe to the correct length Then tighten the clamp bolt s to final tightness d Tighten the piercing s...

Page 13: ...sure of all three poles STEP 9 Attach the interphase drive lever to the interphase or outboard pipe section in the position shown on the erection drawing See Figure 10 Make sure the lever is at the 45...

Page 14: ...nstall the upper section of vertical operating pipe between the interphase drive lever coupling and the uppermost rod guide with the rod guide arm pointing upward at a 45 degree angle See Figure 13 A...

Page 15: ...y inch 6 mm of thread should extend through the coupling Tighten the locknut See Figure 15 If suffix S8 or S9 is specified refer instead to S C Instruction Sheet 769 510 Type AS 10 Switch Operators If...

Page 16: ...page 17 STEP 16 Fasten the free end of the grounding strap to the lowest vertical operating pipe section a few inches above the operating handle assembly with the U bolt connector provided for this p...

Page 17: ...ing linkage has been taken up STEP 19 If there is still slack repeat the procedure in Step15onpage16butmovetheoperatinghandle more than 20 degrees in the opening direction before torquing the clamp bo...

Page 18: ...extended engages a slot in the locking disc on the operat ing handle See Figure 21 STEP 21 Block one of the two slots in the locking disc with the blocking screw provided The slot to be blocked depend...

Page 19: ...h will occur if the energized switch is operated slowly or left in the partially Open or Closed position Check to make sure the following conditions exist a With the operating handle as far as it will...

Page 20: ...isrequired Move the operating handle to its mid position to take the strain off the operating pipe linkage and loosen the two nuts that clamp the adjustable arm of the interphase drive lever See Figur...

Page 21: ...r readjusting be sure to retighten the clamp bolt and piercing set screw on the pipe coupling at the rod guide or interphase drive lever coupling immediately above the operating handle the nuts on the...

Page 22: ...ur if the energized switch is operated slowly or left in the partially Open or Closed position a As the blade moves in the closing direction clearance between the blade opening cam and the interrupter...

Page 23: ...e parallel to the sweep of the blades and the blades must pass over the interrupter with approxi mately equal clearance on both sides See Figure 32 e If adjustment is required loosen the nuts thatfast...

Page 24: ...tationarymaincontactassemblies See Figure 34 The shunt contacts may be bent as required to conform to these conditions If any of the conditions described in this step cannot be achieved contact the ne...

Page 25: ...Conductors When high voltage conductors are to be connected using aluminum alloy body connectors the following procedures should be employed Thoroughly wire brush the current transfer surfaces of eac...

Page 26: ...precautions may result in serious injury or death NOTICE This interrupter switch is not intended for breaking fault currents STEP 26 To operate the Alduti Rupter Switch a Remove the padlock from the l...

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