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W-VAC 3150A Breaker with Carriage W-VAC Breaker Element Assembly for Single Tier Switchgear W-VAC Breaker with Carriage W-VAC Breaker with Cradle Assembly for Single Tier Switchgear Assembly for Double Tier Switchgear IB131009EN...
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All possible contingencies which may arise during installation, operation or maintenance, and all details and variations of this equipment do not purport to be covered by these instructions. If further information is desired by purchaser regarding his particular installation, operation or maintenance of particular equipment, contact an Eaton representative. IB131009EN ...
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Instruction Book Page 6 Type W-VAC Breaker Manual Operation (Single Tier Breaker Shown) ..........23 Flush Mounted Configuration........................26 Behind the Door Configuration ........................27 Closeup of Type W-VAC Breaker Vacuum Interrupters and Current Carrying System ......27 5-4 a Type W-VAC 95 kV BIL Breaker Shown With Left Hand Cover Removed for Clarity Purposes .....
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Instruction Book Page 1 SECTION 1: INTRODUCTION WARNING The purpose of this book is to provide instructions for unpacking, storage, installation, operation and mainte- SATISFACTORY PERFORMANCE OF THESE nance of Types W-VAC, W-VACR, and W-VACW BREAKERS IS CONTINGENT UP-ON PROPER Vacuum Circuit Breakers.
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Instruction Book Page 2 Table 1.2 Type W-VACR Vacuum Circuit Breaker Ratings Frequency Rated Insulation Level Rated Nominal Current Circuit Rated Rated Short Circuit Breaker Voltage Breaking Current Lighting Power Short Pulse Frequency Circuit Type & Short Circuit Withstand Withstand Making 50-60HZ...
Instruction Book Page 3 630A Element 630A = 105kg Figure 1-1 Type W-VACR 630A. breaker element only outline dimensions (millimeters) and weights (kilograms). IB131009EN ...
Instruction Book Page 4 630A Element 630A = 105kg Figure 1-2 Type W-VACR 630A. breaker element only outline dimensions (millimeters) and weights (kilograms). IB131009EN...
Instruction Book Page 5 800/1250A Element 800A/1250A = 110kg Figure 1-3 Type W-VACR 800/1250A. breaker element only outline dimensions (millimeters) and weights (kilograms). IB131009EN ...
Instruction Book Page 6 800/1250A Element 800A/1250A = 110kg Figure 1-4 Type W-VACR 800/1250A. breaker element only outline dimensions (millimeters) and weights (kilograms). IB131009EN...
Instruction Book Page 7 2000A Element 2000A = 149kg Figure 1-5 Type W-VACR 2000A. breaker element only outline dimensions (millimeters) and weights (kilograms). IB131009EN ...
Instruction Book Page 8 2000A Element 2000A = 149kg Figure 1-6 Type W-VACR 2000A. breaker element only outline dimensions (millimeters) and weights (kilograms). IB131009EN...
Instruction Book Page 9 2500A Element 2500A = 154kg Figure 1-7 Type W-VACR up to 2500A, 50kA. breaker element only outline dimensions (millimeters) and weights (kg.). IB131009EN ...
Instruction Book Page 10 Up to 1250A Element 630A = 115kg 800A/1250A = 121kg (Front View) (Side View) 1600A & 2000A Elements (Side View) (Front View) 1600A/2000A = 160kg Figure 1-8 Type W-VAC breaker element only outline dimensions (millimeters) and weights (kilograms). ...
Instruction Book Page 11 33.3 “C” POLE “A” POLE “B” POLE 19.34 Earthing Contacts Rating Weight Carriage Up to 15 kV/Up to 1250A to 40kA 1226 1202 1340 Up to 15 kV/1600A and2000A/Up to 40 kA 1299 1275 1340 33.3 “C”...
Instruction Book Page 13 SECTION 2: SAFE PRACTICES • Do not work on a breaker with the secondary test cou- pler engaged or fixed secondary connections made. Failure to disconnect the test coupler could result in an W-VAC, W-VACR, and W-VACW breakers are electrical shock leading to death, personal injury or equipped with high speed, high energy operating mech- property damage.
Accessories, such immediately with the carrier if damage or loss is detect- as the maintenance tool and levering crank are shipped ed and notify the nearest Eaton Sales Office. separately. Tools and Accessories 3-1 RECEIVING Maintenance Tool: Used to charge the closing springs.
Instruction Book Page 15 3-3 STORAGE 3-2 HANDING If the circuit breaker is to be placed in storage, maxi- mum protection can be obtained by keeping it in the WARNING original container. DO NOT USE ANY LIFTING DEVICE AS A PLAT- Before placing it in storage, checks should be made to FORM FOR PERFORMING MAINTENANCE, REPAIR make sure that the breaker is free from shipping dam-...
Instruction Book Page 22 SECTION 4: INSTALLATION breaker. Check contact erosion and wipe as described in Section 6.5. 4-6 PRIMARY CIRCUIT RESISTANCE Check the primary circuit resistance as described in BEFORE PLACING THE BREAKER IN SERVICE, Section 6.8 The resistance should not exceed the val- CAREFULLY FOLLOW THE INSTALLATION PROCE- ues specified.
Instruction Book Page 23 a. Inserting the maintenance tool into b. Lifting shoot lever permits insertion the manual charging socket of levering crank c. Manually closing the breaker d. Manually tripping the breaker Figure 4-1 Type W-VAC breaker manual operation (single tier breaker shown) IB131009EN ...
Instruction Book Page 24 ondary contacts when in the disconnected position. The d) Anti-Latch Interlock: This interlock prevents the structure mounted secondary contact blocks are perma- breaker from being closed between the Connected and nently mounted and cannot be moved out for direct con- Test positions.
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Instruction Book Page 25 Step 6: Withdraw Breaker from Test Position: 1. For the single tier configuration carriage assembly version, lift the shoot bolt lever and pull the breaker out. The breaker will close and trip as it comes out from the Test position.
(Figure 5-2). 5-1.1 VACUUM INTERRUPTER W-VAC breakers utilize Eaton vacuum inter- rupters to close and open the primary circuit. The mech- anism is All the circuit breakers utilize vacuum interrupters for a front mounted, spring stored energy type, which is interruption and switching functions.
The purpose of the contact erosion indicator is to moni- tor the erosion of the vacuum interrupter contacts, which is very minimal over time with Eaton vacuum interrupters utilizing copper-chrome contact material. If contact erosion reaches 1/8 inch, the interrupter must be replaced.
A great deal of effort has been spent in the design of all Eaton vacuum breakers, in order to eliminate the need for field adjustments of wipe or stroke.
Instruction Book Page 29 W-VAC, WVACR, and W-VACW designs utilizes contin- 5-2.2 CHARGING uous glass polyester moldings to support individual pole units. All 95 KV BIL 630 through 1250 ampere rated Figure 5-6 is a schematic view of the spring charging breakers require an additional cover to be added to the parts of the stored energy mechanism.
Instruction Book Page 30 ➉ ➂ ➁ ➆ ➇ ➀ ➃ ➄ ➈ ➅ Figure 5-5a Breaker open and closing spring Figure 5-5b Breaker open and closing spring discharged discharged Figure 5-5c Breaker closed and closing Figure 5-5d Breaker closed and closing spring discharged spring charged ➀...
Instruction Book Page 32 turn. Since the cam surface in contact with the main link 5-3.1 TIMING roller is cylindrical in this region, the spring charging operation does not affect the mechanism linkage. The opening and closing times for the circuit breakers vary depending upon the control voltage and the power Since the primary contacts are completely enclosed in rating.
Instruction Book Page 33 5-3.3 UNDERVOLTAGE TRIP DEVICE SEVERE PERSONAL INJURY OR PROPERTY DAM- AGE. The undervoltage trip device for all circuit breakers is an electromechanical device that operates to open the All W-VAC and W-VACW breakers are equipped with breaker at 35% or less of the voltage rating of the trip several interlocks.
ADDITIONS TO THE BREAKER ELEMENTS AS SUP- circuit breakers prior to inserting a drawout circuit break- PLIED BY EATON MUST BE MADE IN KEEPING er into a cell, permanently mounting a fixed circuit WITH APPLICABLE IEC STANDARDS. UNDER NO breaker and/or placing a circuit breaker in service.
Instruction Book Page 37 SECTION 6: INSPECTION AND FAILURE TO FOLLOW ANY OF THESE INSTRUC- TIONS MAY CAUSE DEATH, SERIOUS BODILY MAINTENANCE INJURY, OR PROPERTY DAMAGE. SEE SECTION 2- SAFE PRACTICES FOR MORE INFORMATION. 6-2 FREQUENCY OF INSPECTION WARNING Inspect the breaker once a year when operating in a clean, non corrosive environment.
Instruction Book Page 38 6-3 INSPECTION AND MAINTENANCE PROCEDURES No./Section Inspection Item Criteria Inspection Method Corrective Action 1. Insulation Drive Insulator No dirt Visual Check Clean with lint-free cloth Molded Pole Unit Support No cracking Visual Check Replace cracked unit Insulation Main Circuit to Ground Withstand...
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Instruction Book Page 39 No./Section Inspection Item Criteria Inspection Method Corrective Action 4. Operating Dust or Foreign Matter No dust or foreign Visual Check Clean as necessary Mechanism matter Lubrication Smooth operation Sight and feel Lubricate very sparingly and no excessive with light machine oil wear...
Instruction Book Page 40 Figure 6-2 Vacuum interrupter showing contact erosion Figure 6-3 Vacuum interrupter showing contact erosion indicator with breaker open (shown here for clarity pur- indicator with breaker closed (indicators are checked poses only). only when breaker is closed). WARNING 6-5.1 CONTACT EROSION (3150A ONLY) In order to determine if the contacts of a 3150 ampere...
If a solvent is disconnecting terminals in the two motor leads provided required to cut dirt, use Stoddard's Solvent Eaton for this purpose. Connect all points of the secondary dis- 55812CA or commercial equivalent.
Instruction Book Page 42 6-8 PRIMARY CIRCUIT RESISTANCE CHECK Since the main contacts are inside the vacuum cham- ber, they remain clean and require no maintenance at any time. Unlike most typical circuit breaker designs, W- VAC, W-VACR and W-VACW breakers do not have slid- ing contacts at the moving stem either.
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Step 11 - Push the “push to open” clapper to open the The recommendations and information contained herein circuit breaker. are based on Eaton experience and judgment, but should not be considered to be all-inclusive or cov- Step 12 - Inspect the circuit breaker to assure it is in the ering every application or circumstance which may open position and the closing springs are discharged.
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Instruction Book Page 44 Figure 6-11 Attaching Tape Around to Back of Cam Figure 6-8 Status Indicators (“A” shows the contact status indication and “B” shows the spring indication.) Figure 6-12 Attaching CloSure Test Tool at Hole “A” Figure 6-9 Starting Tape at Bottom of Cam Figure 6-13 Attaching CloSure Test Tool at Hole “B”...
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Instruction Book Page 45 Figure 6-14 Manually Charging Closing Springs Figure 6-17 Move Marker 15 to Right Figure 6-15 Manually Closing Circuit Breaker with Marker in Hole “C”. Figure 6-18 Move Marker 15 to Left Closure Tool Marker Figure 6-19 Remove Marked Masking Tape from Cam Figure 6-16 Top View of Cam and Marker Interface IB131009EN...
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Instruction Book Page 46 Width Figure 6-20 Place Tape on Right Side Panel of Breaker * Figure not to scale * Note: Use the center of the marker diameter to determine “X” distance Figure 6-23 Typical Circuit Breaker Front View with CloSure Tool Attached (approximate mechanism chassis width)
Eaton No. 53701QB. Over a period of time, this many years. They should not be disturbed unless there lubricant may be pushed out of the way or degrade.
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Instruction Book Page 48 SYMPTOM INSPECTION AREA CONTROL DEFECTS Fails To Close • No Closing Sound • Control Power • Closing Springs charged but breaker does not close (Close Coil does not pick up) (Fuse Blown or switch off) •...
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Instruction Book Page 49 SYMPTOM INSPECTION AREA CONTROL DEFECTS Fails to Trip • Control Power • No Trip Sound • Control Circuit (Fuse blown or switch off) • Secondary Disconnect • Auxiliary Switch (a contact no making, poor or burned) •...
Specify the method of shipping desired. own stock level based on operating experience. Refer to Table 7.1 for guidance. e.) Send all orders or correspondence to the nearest Eaton sales office. Table 7.1 Recommended W-VAC, W-VACR and W-VACW Spare Parts Line No.
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Instruction Book Page 51 Line No. Description Style W-VACR Pole Unit Assy, 1250A, 4D13307G13 Up to 15 kV, 31.5 kA, 95 kV BIL W-VACR Pole Unit Assy, Up to 2500A, 4D13307G65 15 kV, 50 kA, 95 kV BIL ...
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Instruction Book Page 52 Line No. Description Style W-VAC Pole Unit Assy, 2000A, 4D13307G04 Up to 15 kV, 31.5 kA and 95 kV BIL W-VAC Pole Unit Assy, 630A, 4D13307G06 Up to 17.5 kV, 25kA, 95 kV BIL (Plus) Cover 4D13343H01 W-VAC Pole Unit Assy, 1250A, 4D13307G07...
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Instruction Book Page 53 Line No. Description Style W-VACW Pole Unit Assy (continued from previous page) (continued from previous page) 12 kV, 1250A, 31.5kA 69D3313H16 12 kV, 1600A, 31.5kA 69D3313H25 12 kV, 2000A, 31.5kA 69D3313H29 12 kV, 1250A, 40kA 69D3313H17 12 kV, 2000A, 40kA 69D3313H30...
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Instruction Book Page 54 Effective: October 2005 Line No. Description Style Shunt Trip Coils 48 VDC 3759A76G01 110-125 VDC/110-125 VAC Cap trip 3759A76G02 220-250 VDC/220-250 VAC Cap trip 3759A76G03 UV Trip Coils 48 VDC 8064A19G01 110/125 VDC 8064A19G02 220/250 VDC 8064A19G03...
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