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Eaton 380 VCP-Wind, Instructions For The Use, Operation And Maintenance, Page: 42 / 49

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Eaton 380 VCP-Wind Instructions For The Use, Operation And Maintenance Download Page 42

Page 36                                                                                                                                                                           

I.B. 70A2580H02 

 

Effective November 2012                                                                                                                                                                                              Style 
70A2580H02

                                                                                                                                                                       

Printed in USA 

 
6-12 TROUBLESHOOTING CHART

 

 

SYMPTOM 

INSPECTION AREA 

PROBABLE DEFECTS 

Undesirably Closes 

 

 

• 

Control Circuit 

• Close Circuit 
  (CS/C Getting Shorted) 

 

            • 

Mechanism 

• Close Release Latch 
  (Fails to reset) 

• Close Floor Tripper 
   (Fails to reset) 

Fails To Trip 

 

 

• Control Circuit 

• Control Power 
  (Fuse blown or switch off) 

• Secondary Disconnect 

• Auxiliary Switch 
  (a contact not making, poor or burned) 

• Trip Coil 
  (Burned or open) 

• Terminals and Connections 
  (Poor or burned or open) 

• No Trip Sound 

• Trip Mechanism 

• Trip Clapper 
   (Jammed) 

• Trip Mechanism 

• Trip Bar, Trip Latch 
  (Jammed) 

• Pole Shaft 
  (Jammed) 

• Operating Rod Assembly 
  (Broken or pins out) 

• Trip Sound 
   But No Trip 

• Vacuum Interrupter 

      (One or more welded) 

 

Undesirably Trips 

 

 

 

• Control Circuit 

• Control Power 
  (CS/T Switch, remains made) 

 

• Mechanism 

• Trip Coil Clapper 
   (Not resetting) 

• Trip Bar or Trip Latch 
   (Poor engagement of mating 
   or worn surfaces) 

• Trip Bar Reset Spring 
   (Loss of torque) 

• Tip of Main Cam Chipped or Worn 
   (Trip after Closed Breaker is Charged) 

Summary of Contents for 380 VCP-Wind

Page 1: ...Effective November 2012 Instructions for the use operation and maintenance of type 380 VCP Wind Vacuum Circuit Breakers I B 70A2580H02 ...

Page 2: ......

Page 3: ... REQUIRED YOU SHOULD CONTACT EATON THE CIRCUIT DAMAGE ALL SAFETY CODES SAFETY STANDARDS AND OR REGULATIONS AS THEY MAY BE APPLIED TO THIS TYPE OF EQUIPMENT MUST BE STRICTLY ADHERED TO SERIOUS INJURY INCLUDING DEATH CAN RESULT FROM FAILURE TO FOLLOW PROCEDURES OUTLINED IN THIS MANUAL OR COMPLY WITH THE REQUIREMENTS OF APPLICABLE STANDARDS EATON Moon Township PA 15108 A l l possible contingencies wh...

Page 4: ... Circuit Breaker Weights 6 SECTION 4 INITIAL INSPECTION AND INSTALLATION 4 1 Introduction 11 4 2 Manual Operation Check 11 4 3 Vacuum Interrupter Integrity 11 4 4 Insulation 11 4 5 Contact Erosion and Wipe 11 4 6 Primary Circuit Resistance 11 4 7 Nameplate 11 4 8 Electrical Operation Check 11 4 8 1 Circuit Breaker Insertion and Removal 12 4 8 2 Operation Check Performance 14 4 9 Breaker Structure ...

Page 5: ... Maintenance 25 6 2 1 Qualified Personnel 25 6 2 2 Helpful Tools and Accessory Items 25 6 2 3 General Torque Guidelines 25 6 3 Inspection and Maintenance Procedures 27 6 4 Vacuum Interrupter Integrity Test 28 6 5 Insulation 28 6 6 Insulation Integrity Check 29 6 7 Primary Circuit Resistance Check 29 6 8 Mechanism Check 30 6 10 1 CloSureTM Test 30 6 9 Lubrication 34 6 10 Troubleshooting Chart 34 SE...

Page 6: ...0 6 5 Wrapping Tape up around Cam 30 6 6 Attaching Tape Around to Back of Cam 31 6 7 Attaching CloSureTM Test Tool at Hole A 31 6 8 Attaching CloSureTM Test Tool at H Pole B 31 6 9 Manually Charging Closing Springs 31 6 10 Manually Closing Circuit Breaker with Marker in Hole C 32 6 11 Top View of Cam and Marker Interface 32 6 12 Move Marker 15 to Right 32 6 13 Move Marker 15 to Left 32 6 14 Remove...

Page 7: ...NCLUDED AS PART OF THE PROCEDURAL STEPS IN THIS DOCUMENT ARE FOR PERSONNEL SAFETY AND PROTECTION OF EQUIPMENT FROM DAMAGE AN EXAMPLE OF A TYPICAL WARNING LABEL HEAD ING IS SHOWN ABOVE IN REVERSE TYPE TO FAMILIARIZE PERSONNEL WITH THE STYLE OF PRESENTATION THIS WILL HELP TO INSURE THAT PERSONNEL ARE ALERT TO WARNINGS WHICH MAY APPEAR THROUGHOUT THE DOCUMENT IN ADDITION CAUTIONS ARE ALL UPPER CASE A...

Page 8: ...D TO OPERATE WITHIN THEIR NAMEPLATE RATINGS OPERATION OUTSIDE OF THESE RATINGS MAY CAUSE THE WARNING REGULATIONS AS THEY MAY BE APPLIED TO THIS TYPE OF EQUIPMENT MUST BE STRICTLY ADHERED TO 1 2 TYPE VCP Wind VACUUM CIRCUIT BREAKER RATINGS TABLE 1 Table 1 Type VCP Wind Ratings on Symmetrical Current Rating Basis ...

Page 9: ...Effective November 2012 1 4 OUTLINES AND DIMENSIONS Figure 1 1 Type VCP Wind 38kV Drawout Circuit Breaker Outline and Dimensions inches BOTTOM OF ALIGNMENT ROLLER ...

Page 10: ...eaker with a secondary test coupler engaged Failure to disconnect the test coupler could result in an electrical shock leading to death personal injury or property damage Do not work on a closed circuit breaker or a breaker with closing springs charged The closing springs should be discharged and the main circuit contacts open before working on the circuit breaker Failure to do so could result in ...

Page 11: ... the nearest Eaton Office NOTICE The VCP Wind 38kV shipping container and pallet were specifically designed to facilitate removal of the circuit breaker from its pallet and container Before proceeding installation personnel should be familiar with the procedures outlined in Paragraph 3 3 entitled Handling 3 3 HANDLING WARNING DO NOT USE ANY LIFTING DEVICE AS A PLAT FORM FOR PERFORMING MAINTENANCE ...

Page 12: ...ping damage and is in satisfactory operating condition The circuit breaker is shipped with its contacts open and closing springs discharged The indicators on the front panel should confirm this Insert the maintenance tool in the manual charge socket opening Figure 3 4 Charge the closing springs by pumping the handle up and down approximately 36 times until a crisp metallic click is heard This indi...

Page 13: ...ve November 2012 1 Front Cover 2 Circuit Breaker Wheel 3 Alignment Rollers 4 Levering Point 5 Shutter Driver Wheels 6 Shoot Bolt Pins 7 Shoot Bolt Handle Figure 3 1 VCP Wind 38kV Drawout Vacuum Circuit Breaker 5 3 2 2 3 2 6 7 4 1 7 ...

Page 14: ...or Cutoff Switch 8 Left Shock Absorber 3 Right Close Spring 9 Shunt Trip Assembly 4 Open Spring 10 Spring Release Assembly 5 Manual Charge Socket 11 Auxiliary Switch 6 Charging Motor 12 Pole Shaft Figure 3 2 VCP Wind 38kV Vacuum Circuit Breaker with Front Cover Removed 5 7 4 6 9 10 8 1 2 11 12 3 ...

Page 15: ...ctive November 2012 1 Encapsulated Pole Unit 2 Primary Disconnect 3 Secondary Disconnect 4 Alignment Rollers 5 Circuit Breaker Wheels 6 O C O Operator Figure 3 3 Rear View VCP Wind 38kV Drawout Vacuum Circuit Breaker 4 6 2 3 5 1 ...

Page 16: ...vember 2012 1 Operations Counter 2 Open Close Indicator 3 Manual Close Button 4 Rating Nameplate 5 Manual Open Button 6 Spring Charged Discharged Indicator 7 Manual Charge Socket Figure 3 4 Typical VCP Wind 38kV Front Cover 6 5 4 3 2 1 7 ...

Page 17: ...s soon as Charged flag is fully visible Continued attempts to charge further may result in damage to the mechanism Remove the maintenance tool Close and trip the circuit breaker Repeat several times 4 3 VACUUM INTERRUPTER INTEGRITY Using a dry lint free cloth or paper towel clean all the accessible insulating surfaces of the pole units Conduct a vacuum interrupter integrity check as described in S...

Page 18: ... until the pins line up with the first set of slots in the alignment rail blocks b TEST POSITION See Figure 4 5 Pull the shoot bolt handles in which will remove the retractable pins from the first set of slots in the structure alignment rail blocks and then push the circuit breaker in until the pins line up with the second set of slots Then release the shoot bolt handles making sure handles return...

Page 19: ...reaker to the TEST position Note Secondaries automatically engage Breaker can now be racked in Figure 4 6 VCP Wind Breaker insertion Step 5 Use Levering tool and lever breaker to the CONNECT Position Levering completed shown above Push handle inward while levering in clockwise or levering out counter clockwise Levering Trip Free Interlocks Internal to the breaker are interlocks that render the cir...

Page 20: ...uctions provided with the assembly will suggest other interfacing conditions that should be observed and or checked such as primary shutter operation MOC TOC operation and levering handle insertion A complete coordinated inter face check therefore will be a blend of the circuit breaker instructions and those provided with the structural assembly Together all required standards are met and the ulti...

Page 21: ... advantages of enclosed interrupters reduced size and weight short interrupting time long life reduced maintenance and environmental compatibility Arc interruption is simple and fast Figure 5 1 In the closed position current flows through the interrupter When the contacts are opened the arc is drawn between the contact surfaces It is moved rapidly around the slotted contact surfaces by a self indu...

Page 22: ... all the elements for storing the energy closing and tripping of the circuit breaker as well as manual and electrical controls The manual controls are all front accessible Motion to close and open the interrupter contacts is provided through operating rods connecting the mechanism pole shaft to the bell cranks of the interrupter assemblies 5 3 1 OPERATION OF STORED ENERGY MECHANISM The mechanism s...

Page 23: ...I B 70A2580H02 Page 17 Effective November 2012 Figure 5 2 Closing Cam and Trip Linkage ...

Page 24: ... control voltages or more than one tripping element but the principal mode of operation is as follows As soon as the control power is applied the spring charging motor automatically starts charging the closing springs When the springs are charged the motor cut off LS1 bb switch turns the motor off The circuit breaker may be closed by making the control switch close CS C contact Automatically upon ...

Page 25: ...I B 70A2580H02 Page 19 Effective November 2012 Figure 5 3 Charging Schematic ...

Page 26: ...Page 20 I B 70A2580H02 Effective November 2012 Figure 5 4 Typical VCP Wind DC Control Schematics ...

Page 27: ...I B 70A2580H02 Page 21 Effective November 2012 Figure 5 5 Typical VCP Wind AC Control Schematics ...

Page 28: ...han 30 but less than 60 of the voltage rating of its trip coil The circuit breaker can be closed as long as the voltage to the trip coil is maintained at 85 or above the rated level The under voltage trip device is available only as an instantaneous type with rated voltages of 48VDC 1 25VDC 250VDC 120VAC and 240VAC Table 5 1 Circuit Breaker Timing Event Milliseconds maximum Closing Time From Initi...

Page 29: ...re equipped with a mechanical operations counter As the circuit breaker opens the linkage connected to the pole shaft lever advances the counter reading by one Figure 3 4 5 8 GROUND CONTACT The ground contact used with the drawout VCP Wind circuit breaker is an assembly of spring loaded fingers providing a dis connectable means for grounding the circuit breaker chassis after it has been inserted i...

Page 30: ...Page 24 I B 70A2580H02 Effective November 2012 Figure 5 8 38kV VCP Wind Mini Module Figure 5 9 Under Voltage Trip Device Configuration ...

Page 31: ...ns maintenance performed actions taken observations made and measurements taken Not only will this provide valuable historical information it can help to establish whether or not the present schedule needs to be adjusted 6 Perform ongoing visual inspections when possible of all equipment on a regular basis Be alert for an accumulation of dirt in and around the circuit breakers loose hardware or di...

Page 32: ... AGE WHILE UNDER TORQUING WILL NOT PROVIDE THE PROPER CLAMPING FORCE AND MAY EVENTUALLY WORK LOOSE Table 6 1 Torque Guidelines Bolt Size Torque LB IN 8 32 24 10 32 36 1 4 20 72 5 16 18 144 12lb ft 3 8 16 300 25lb ft 1 2 13 540 45lb ft Figure 6 1 Lubrication Points Drawout Circuit Breaker Shown ...

Page 33: ... not satisfactory replace pole unit assembly Replace if burned damaged or eroded 3 Control Circuit Parts Closing and Tripping Device Including Disconnects Wiring Terminals Motor Smooth and correct operation by control power Securely tied in proper place Tight Smooth Normal Operation Test closing and tripping of the circuit breaker twice Visual Check Visual Check Functional Test Replace any defecti...

Page 34: ...in service After the high potential is removed discharge any electrical charge that may be retained To avoid any ambiguity in the ac high potential test due to leakage or displacement capacitive current the test unit should have sufficient volt ampere capacity It is recommended that the equipment be capable of delivering 25 milliamperes for one minute The current delivery capability of 25 mA AC an...

Page 35: ...e circuit breaker Connect the remaining poles and circuit breaker frame to ground Start the machine with output potential at zero and increase to the test voltage Maintain the test voltage for one minute Repeat for the remaining poles Successful withstand indicates satisfactory insulation strength of the primary circuit If a DC high potential machine is used make certain that the peak voltage does...

Page 36: ...es that place extra load upon the closing mechanism of the circuit breaker If this load is excessive it can prevent the circuit breaker from closing fully In such a case it is important to determine that the circuit breaker will close fully The CloSureTM Test provides this assurance General Information The CloSureTM Test can be per formed on the VCP Wind lines of vacuum circuit breakers Refer to T...

Page 37: ...g tape approximately 8 to 10 inches long Step 4 Place the tape around the cam starting from the bottom up Make certain that the tape adheres well to the cam surface See Figures 6 4 6 5 and 6 6 Step 5 Mount the transparent CloSureTM Test Tool with two bolts and washers Refer to Figures 6 17 6 18 and Table 6 3 for appropriate mounting holes Hand tighten the bolts Figures 6 7 6 8 6 17 and 6 18 Step 6...

Page 38: ...n the circuit breaker Step 12 Inspect the circuit breaker to assure it is in the Figure 6 13 Move Marker 15 to left Figure 6 14 Remove Marked Masking Tape from Cam Figure 6 15 Place Tape on Right Side Panel of Breaker open position and the closing springs are discharged Remove the transparent CloSureTM Tool Remove the tape from the cam and stick the tape on the front right side sheet of the circui...

Page 39: ...if the marking is similar to 6 16B or 6 16C contact your local Eaton sales representative or distributor for service or go to www EatonElectrical com for more Information about our products and support Figure 6 18 Typical Circuit Breaker Front View with CloSureTM Tool Attached approximate mechanism chassis width Breaker Line Approximate Mechanism Cabinet Width inch Upper Mounting Hole Lower Mounti...

Page 40: ...grease which normally should be effective for many years They should not be disturbed unless there is definite evidence of sluggishness dirt or parts are dismantled for same reason If it becomes necessary to disassemble the mechanism the bearings and related parts should be thoroughly cleaned Remove old grease in a good grease solvent Do not use carbon tetrachloride They should then be washed in l...

Page 41: ... or burned Latch Check Switch Contact open bad switch or trip bar not reset Auxiliary Switch b contact open or burned Motor Cut off Contacts open or burned Trip Coil Assembly Clapper fails to reset Closing Spring charged but circuit breaker does not close Closing Sound but no close Pole Shaft Not open fully Trip Latch Reset Spring Damaged or Missing Trip Bar D Shaft Fails to remain reset Trip Latc...

Page 42: ... contact not making poor or burned Trip Coil Burned or open Terminals and Connections Poor or burned or open No Trip Sound Trip Mechanism Trip Clapper Jammed Trip Mechanism Trip Bar Trip Latch Jammed Pole Shaft Jammed Operating Rod Assembly Broken or pins out Trip Sound But No Trip Vacuum Interrupter One or more welded Undesirably Trips Control Circuit Control Power CS T Switch remains made Mechan...

Page 43: ... to Table 7 1 for guidance 7 1 1 ORDERING INSTRUCTIONS a Always specify the breaker rating information and shop order number b Describe the item give the style number and specify the quantity required c Specify the voltage for electrical components d Specify the method of shipping desired e Send all orders or correspondence to the nearest Eaton sales office DESCRIPTION STYLE NUMBER VCP Wind QTY VI...

Page 44: ...VAC 240VAC 8237A27H03 8237A27H04 8237A27H05 8237A27H01 8237A27H02 1 1 1 1 1 Shunt Trip Coils 24VDC 48VDC 1 25VDC 1 25VAC Cap Trip 250VDC 240VAC Cap Trip 3759A76G14 3759A76G11 3759A76G12 3759A76G13 1 1 1 1 Primary Disconnects Standard All currents 5680B59G01 6 UV Trip Coils 48VDC 125VDC 250VDC 120VAC 240VAC 8064A19G01 8064A19G02 8064A19G03 8064A19G07 8064A19G08 1 1 1 1 1 Motor Cutoff Switch 699B199...

Page 45: ...ion Switch Position Switch 699B147H01 699B147H02 1 1 Auxiliary Switch 5697B20H01 1 Trip D Shaft 694C638G01 1 Trip Latch Hatchet 699B040G03 1 Shock Absorber 5677B26H01 2 Front Panel w o labels 72C2533H11 1 Ground Contact Assembly 67B5053H02 3 Table 7 1 Recommended Renewal Parts for IEEE Rated Breakers Continued Next Page ...

Page 46: ...Mounted 10 Shaft Breaker Mounted Shown 69C3541G26 69C3541G27 72C2554G01 1 Levering in Crank 8079A35G05 1 Manual Charging Handle 8064A02G11 1 Wiring Harness Repair Kit Complete Replacement 72C2582G91 72C2582G01 1 Test Cabinet Jumper Test Jumper Shown Test Cabinet Any DC Any Trip Test Cabinet AC or DC Close DC Trip Test Cabinet 120 240V AC Close Capacitor Trip 72C2574G02 8346A28G71 8346A28G72 8346A2...

Page 47: ...I B 70A2580H02 Page 41 Effective November 2012 Table 7 2 38kV VCP Wind Mini Module Code Pin Position Chart ...

Page 48: ... the purchaser and Eaton NO WARRANTIES EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OR WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE ARE MADE REGARDING THE INFORMATION RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN In no event will Eaton be responsible to the purchaser or user in contract in tort including negligence strict liabi...

Page 49: ...I B 70A2580H02 Page 43 Effective November 2012 ...

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