Eaton W-VACi User Manual
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Eaton W-VACi User Manual

12/17.5/24 kv iec vacuum circuit breakers
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W-VACi 12 / 17.5 / 24 kV IEC Vacuum Circuit Breakers

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  • Page 1 User manual W-VACi W-VACi 12 / 17.5 / 24 kV IEC Vacuum Circuit Breakers...
  • Page 2 65A7355H01 November 2011 www.eaton.com...

  • Page 3: Table Of Contents

    Technology Parameters ........................6 Technical Parameters 12 kV W-VACi IEC Circuit Breaker..............7 Technical Parameters 17.5 kV W-VACi IEC Circuit Breaker..............9 Technical Parameters 24 kV W-VACi IEC Circuit Breaker..............11 Operating Conditions .......................... 12 Breaker Description ..........................12 Outline and Dimensions ........................13 Receiving, handling and storage ..................
  • Page 4 Ordering Instructions .......................... 64 Standard accessories ......................... 64 Optional accessories .......................... 67 Appendix ..........................69 12 / 17.5 / 24 kV W–VACi Vacuum Circuit Breaker Operational Check List ........69 W–VACi Vacuum Circuit Breaker Equipment Check List ..............70 65A7355H01 November 2011 www.eaton.com...

  • Page 5: Safety

    1 Safety and work rules.  W-VACi vacuum circuit breakers are equipped with Do not leave a withdrawable circuit breaker in an high speed, high energy operating mechanisms. They intermediate position in the cell. Always have the circuit breaker either in the “Test”...

  • Page 6: Product Summary

    Reliable control and protection of short circuit current can be achieved through the Lightning impulse withstand voltage 95 kV application of W-VACi vacuum circuit breakers in 12 / Correction Factor (K ) obtained from graph 1.28 17.5 / 24kV air insulated switchgear. Legal and other...

  • Page 7: Technical Parameters 12 Kv W-Vaci Iec Circuit Breaker

    Technical Parameters 12 kV W-VACi IEC Circuit Breaker Item Unit 12kV W-VACi Voltage (Ur) Normal Current(I Short-Time Withstand Current(I 26.3 26.3 26.3 26.3 26.3 26.3 Short Circuit Breaking Current(I 26.3 26.3 26.3 26.3 26.3 26.3 Duration of Short Circuit(t Frequency(f...
  • Page 8 Cycle Rated Lighting Impulse Rated Withstand Voltage(U Insulation Rated Power Frequency Level Withstand Voltage(U Operating Sequence O-0.3s-CO-15s-CO Classification E2-M2-S1 Testing configurations available upon request : 20K operations can be achieved on the 12kV, 25 kA Breaker 65A7355H01 November 2011 www.eaton.com...

  • Page 9: Technical Parameters 17.5 Kv W-Vaci Iec Circuit Breaker

    Technical Parameters 17.5 kV W-VACi IEC Circuit Breaker Item Unit 17.5kV W-VACi Voltage (Ur) 17.5 Normal Current(I Short-Time Withstand Current(I Short Circuit Breaking Current(I Duration of Short Circuit(t Frequency(f 50/60 50/60 50/60 50/60 50/60 50/60 Short circuit Making Current(I ≤ 2 ≤...
  • Page 10 Electrical Endurance Cycle Rated Lighting Impulse Rated Withstand Voltage(U Insulation Rated Power Frequency Level Withstand Voltage(U Operating Sequence O-0.3s-CO-15s-CO Classification E2-M2-S1 Testing configurations available upon request 20K operations can be achieved on the 12kV, 25kA Breaker 65A7355H01 November 2011 www.eaton.com...

  • Page 11: Technical Parameters 24 Kv W-Vaci Iec Circuit Breaker

    Technical Parameters 24 kV W-VACi IEC Circuit Breaker 24kV W-VACi Item Unit Voltage (U Normal Current(I 1600 2000 2500 Short-Time Withstand Current(I Short Circuit Breaking Current(I Duration of Short Circuit(t Frequency(f 50/60 50/60 50/60 50/60 50/60 Short circuit Making Current(I...

  • Page 12: Operating Conditions

    Operating Conditions W-VACi breakers are designed for switchgear mounted in indoor areas under normal service conditions (ambient air temperature, altitude, humidity, etc.) as laid out is IEC60694 clause 2.1.1. Table 2-1: Operating Conditions Ambient Temperature: Maximum = +40°C Minimum = -5°C...

  • Page 13: Outline And Dimensions

    31.5 17.5W-3 17.5F-3 2000 31.5 17.5W-3 17.5F-3 3150 31.5 17.5W-4 17.5F-4 1250 17.5W-3 17.5F-3 1600 17.5W-3 17.5F-3 2000 17.5W-3 17.5F-3 3150 17.5W-4 17.5F-4 24W-1 24F-1 24W-1 24F-1 1600 24W-2 24F-2 2000 24W-2 24F-2 2500 24W-3 24F-3 65A7355H01 November 2011 www.eaton.com...
  • Page 14 All Dimensions are in millimeters Fig. 2-2: 12kV Withdrawable W-VACi Circuit Breaker Frame 12W-1 Applicable Ratings Breaking Normal Voltage Current Current 12kV 25kA 630A 12kV 26.3kA 630A 65A7355H01 November 2011 www.eaton.com...
  • Page 15 All Dimensions are in millimeters Fig. 2-3: 12kV Withdrawable W-VACi Circuit Breaker Frame 12W-2 Applicable Ratings Breaking Voltage Normal Current Current 25kA 630A 800A 12kV 26.3kA 630A 800A 31.5kA 630A 800A 1250A 65A7355H01 November 2011 www.eaton.com...
  • Page 16 All Dimensions are in millimeters Fig. 2-4: 12kV Withdrawable W-VACi Circuit Breaker Frame 12W-3 Applicable Ratings Breaking Voltage Normal Current Current 25kA 1600A 2000A 26.3kA 1600A 2000A 12kV 31.5kA 1600A 2000A 40kA 1250A 1600A 2000A These ratings do not use a heat sink These ratings do use a heat sink 65A7355H01 November 2011 www.eaton.com...
  • Page 17 Figure 2- 5: 12kV Withdrawable W-VACi Circuit Breaker Frame 12W-4 Applicable Ratings Breaking Normal Voltage Current Current 25kA 3150A 26.3kA 3150A 12kV 31.5kA 3150A 40kA 3150A These ratings do use a heat sink 65A7355H01 November 2011 www.eaton.com...
  • Page 18 All Dimensions are in millimeters Fig. 2-6: 17.5 kV Withdrawable W-VACi Circuit Breaker Frame 17.5W-1 Applicable Ratings Breaking Normal Voltage Current Current 17.5kV 25kA 630A 65A7355H01 November 2011 www.eaton.com...
  • Page 19 All Dimensions are in millimeters Fig. 2-7: 17.5 kV Withdrawable W-VACi Circuit Breaker Frame 17.5W-2 Applicable Ratings Breaking Voltage Normal Current Current 25kA 630A 800A 17.5kV 31.5kA 630A 800A 1250A 65A7355H01 November 2011 www.eaton.com...
  • Page 20 All Dimensions are in millimeters Fig. 2-8: 17.5 kV Withdrawable W-VACi Circuit Breaker Frame 17.5W-3 Applicable Ratings Breaking Voltage Normal Current Current 25kA 1600A 2000A 17.5kV 31.5kA 1600A 2000A 40kA 1250A 1600A 2000A These ratings do not use a heat sink These ratings do use a heat sink 65A7355H01 November 2011 www.eaton.com...
  • Page 21 Figure 2- 9: 17.5kV Withdrawable W-VACi Circuit Breaker Frame 17.5W-4 Applicable Ratings Breaking Normal Voltage Current Current 25kA 3150A 17.5kV 31.5kA 3150A 40kA 3150A These ratings do use a heat sink 65A7355H01 November 2011 www.eaton.com...
  • Page 22 All Dimensions are in millimeters Fig. 2-10: 24 kV Withdrawable W-VACi Circuit Breaker Frame 24W-1 Applicable Ratings Breaking Normal Voltage Current Current 20kA 800A 24kV 20kA 1250A 65A7355H01 November 2011 www.eaton.com...
  • Page 23 All Dimensions are in millimeters Fig. 2-11: 24 kV Withdrawable W-VACi Circuit Breaker Frame 24W-2 Applicable Ratings Breaking Voltage Normal Current Current 24kV 25kA 1600A 2000A These ratings do not use a heat sink These ratings do use a heat sink...
  • Page 24 All Dimensions are in millimeters Fig. 2-12: 24 kV Withdrawable W-VACi Circuit Breaker Frame 24W-3 Applicable Ratings Breaking Normal Voltage Current Current 24kV 25kA 2500A 65A7355H01 November 2011 www.eaton.com...
  • Page 25 All Dimensions are in millimeters Fig. 2-13: 12kV Fixed W-VACi Circuit Breaker Frame 12F-1 Applicable Ratings Breaking Normal Voltage Current Current 25kA 630A 12kV 26.3kA 630A 65A7355H01 November 2011 www.eaton.com...
  • Page 26 All Dimensions are in millimeters Fig. 2-14: 12kV Fixed W-VACi Circuit Breaker Frame 12F-2 Applicable Ratings Breaking Voltage Normal Current Current 25kA 630A 800A 12kV 26.3kA 630A 800A 31.5kA 630A 800A 1250A 65A7355H01 November 2011 www.eaton.com...
  • Page 27 All Dimensions are in millimeters Fig. 2-15: 12kV Fixed W-VACi Circuit Breaker Frame 12F-3 Applicable Ratings Breaking Voltage Normal Current Current 25kA 1600A 2000A 26.3kA 1600A 2000A 12kV 31.5kA 1600A 2000A 40kA 1250A 1600A 2000A These ratings do not use a heat sink These ratings do use a heat sink 65A7355H01 November 2011 www.eaton.com...
  • Page 28 Fig. 2-16: 12kV Fixed W-VACi Circuit Breaker Frame 12F-4 Applicable Ratings Breaking Normal Voltage Current Current 25kA 3150A 26.3kA 3150A 12kV 31.5kA 3150A 40kA 3150A These ratings do use a heat sink 65A7355H01 November 2011 www.eaton.com...
  • Page 29 All Dimensions are in millimeters Fig. 2-17: 17.5kV Fixed W-VACi Circuit Breaker Frame 17.5F-1 Applicable Ratings Breaking Normal Voltage Current Current 17.5kV 25kA 630A 65A7355H01 November 2011 www.eaton.com...
  • Page 30 All Dimensions are in millimeters Fig. 2-18: 17.5kV Fixed W-VACi Circuit Breaker Frame 17.5F-2 Applicable Ratings Breaking Voltage Normal Current Current 25kA 630A 800A 17.5kV 31.5kA 630A 800A 1250A 65A7355H01 November 2011 www.eaton.com...
  • Page 31 All Dimensions are in millimeters Fig. 2-19: 17.5kV Fixed W-VACi Circuit Breaker Frame 17.5F-3 Applicable Ratings Breaking Voltage Normal Current Current 25kA 1600A 2000A 17.5kV 31.5kA 1600A 2000A 40kA 1250A 1600A 2000A These ratings do not use a heat sink These ratings do use a heat sink 65A7355H01 November 2011 www.eaton.com...
  • Page 32 Fig. 2-20: 17.5kV Fixed W-VACi Circuit Breaker Frame 17.5F-4 Applicable Ratings Breaking Normal Voltage Current Current 25kA 3150A 17.5kV 31.5kA 3150A 40kA 3150A These ratings do use a heat sink 65A7355H01 November 2011 www.eaton.com...
  • Page 33 All Dimensions are in millimeters Fig. 2-21: 24kV Fixed W-VACi Circuit Breaker Frame 24F-1 Applicable Ratings Breaking Normal Voltage Current Current 20kA 800A 24kV 20kA 1250A 65A7355H01 November 2011 www.eaton.com...
  • Page 34 All Dimensions are in millimeters Fig. 2-22: 24kV Fixed W-VACi Circuit Breaker Frame 24F-2 Applicable Ratings Breaking Voltage Normal Current Current 24kV 25kA 1600A 2000A These ratings do not use a heat sink These ratings do use a heat sink...
  • Page 35 All Dimensions are in millimeters Fig. 2-23: 24kV Fixed W-VACi Circuit Breaker Frame 24F-3 Applicable Ratings Breaking Normal Voltage Current Current 24kV 25kA 2500A 65A7355H01 November 2011 www.eaton.com...

  • Page 36: Receiving, Handling And Storage

    Indoor storage should be in a building with sufficient immediately with the carrier if damage or loss is heat and circulation to prevent condensation. If the detected and notify the appropriate Eaton building is not heated, the same rules for outdoor representative.

  • Page 37: Lifting Of Circuit Breakers

    Fig. 3-1: Lifting Point hooks to the attachments. When using any lifting equipment, remove the lifting equipment before installing the circuit breaker into the switchgear. W-VACi Circuit Breaker Weights Table 3- 1: 12kV Circuit Breaker weights Fig. 3-2: Lifting Attachments...

  • Page 38: Photographic Description

    Photographic Description Fig. 3-3: Front view of W-VACi Withdrawable Circuit Breaker Element 1. Secondary Disconnect 7. Operation Handle for Shout-bolts 2. Manual Charging Handle 8. Front Panel 3. Manual Close Button 9. Nameplate 4. Closed/Open Indicator 10. Spring Charged/Discharged Indicator 5.
  • Page 39 W-VACi with275 mm Pole Spacing Breaker Breaker Breaker Fig. 3-5: W-VACi Circuit Breaker Withdrawable Frames Finger Cluster Heat Sink Encapsulated Pole Unit Racking in Assembly Wheel Racking in Assembly Fig. 3-6: Typical Rear View of a Withdrawable W-VACi 65A7355H01 November 2011 www.eaton.com...

  • Page 40: Inspection

    Vacuum Interrupter Integrity Test Vacuum interrupters used in all W-VACi circuit breakers are highly reliable interrupting elements. Satisfactory performance of these devices is dependent upon the integrity of the vacuum in the interrupter and the internal dielectric strength.

  • Page 41: Main Circuit Resistance Check

    2.5 and 2.6 for closing and opening time limits. Torque specifications Table 4-3: Torque Specifications Nominal size and Newton Meters (Nm) pitch M5 x 0.80 M6 x 1.00 M7 x 1.00 M8 x 1.25 M10 x 1.50 M12 x 1.75 M14 x 2.00 65A7355H01 November 2011 www.eaton.com...
  • Page 42 Vacuum Interrupters encapsulated pole unit Adequate vacuum integrity check assembly Power Resistance less Per Section 4-6 Contact Eaton rep. for Elements Main Circuit Resistance than Table 4-2 recommendations values No burning or Replace if burned, damaged, Primary disconnects...

  • Page 43: Troubleshooting Chart

     Secondary Disconnect is not pluged in or has no close when manually Electromechanical Interlock pushing the close control power to it button  Check to see if proper secondary control voltage Breaker does not Electromechanical Interlock rack in is applied to the interlock 65A7355H01 November 2011 www.eaton.com...
  • Page 44 ● Shunt trip circuit is energized Control Circuit ● Auxiliary switch does not switch properly ● Trip latch is damaged Undesirable Trip ● Trip latch does not reset Mechanism ● Manual trip push button “O” does not reset 65A7355H01 November 2011 www.eaton.com...

  • Page 45: Circuit Breaker Description And Operations

    (Fig. 5-5). The breaker is now open and the indicator reads “OPEN”. After completing this check, leave the closing springs “discharged” and the breaker contacts “open” until another check is ready to be performed. Check the breaker operation three times using this procedure. 65A7355H01 November 2011 www.eaton.com...

  • Page 46: Nameplate

    In case of potential discrepancy, contact your Eaton representative before installing the circuit breaker. WARNING Extreme caution must be exercised to ensure...

  • Page 47: Racking Handle

    Circuit Breaker Interaction with Switchgear Racking handle W-VACi circuit breakers provide a number of safety The racking handle is used to move withdrawable interlocks. The following list can help confirm the circuit breakers from the test position to the service breakers function properly.

  • Page 48: Iec Standard Interlocks

    The bar (5) is moved down to lock the secondary contact block (6) in place by the movement of the W-VACi breaker from the Test/Withdrawn position to the Service position.

  • Page 49: Operation

    VI is the Universal Mechanism Assembly (UMA). It is a modular CONDUCTOR assembly design. It is a self contained functional unit. All W-VACi circuit breakers are operated by a front mounted simple spring charged, stored energy VACUUM mechanism (Figure 6-2). The stored energy...

  • Page 50: Charging

    The 4 states of the mechanism can be seen in Figures 6-6 through Figure6-9 on the following page. Fig. 6-5: Manual Charging Process 65A7355H01 November 2011 www.eaton.com...
  • Page 51 Fig. 6-8: Breaker Open and Closing Spring Charged Fig. 6-9: Breaker Closed and Closing Spring Charged 1-Closing Spring 6-Cam Shaft 2-Closing Spring Lever 7-Main Roller 3-Spring Release D Shaft 8-Trip bar D Shaft 4-Close Roller 9-Trip Latch 5-Cam 10-Drive Shaft 11-Spring Release Latch 65A7355H01 November 2011 www.eaton.com...

  • Page 52: Opening

    “OPEN”. & Circuit % (Ua) 0-35 Breaker Opens Control Schemes Limits UVR does Refer to Fig. 6-10 for the W-VACi circuit breaker not operate % (Ua) 70-110 diagram. Limits Rated Parameters of Electromagnetic Interlock Selective Parts Configuration Item...
  • Page 53 Fig. 6-10: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 54 65A7355H01 November 2011 www.eaton.com...
  • Page 55 Fig. 6-11: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 56 Fig. 6-12: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 57 Fig. 6-13: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 58 Fig. 6-14: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 59 Fig. 6-15: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 60 Fig. 6-16: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 61 Fig. 6-17: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 62 Fig. 6-18: Control Schematic 65A7355H01 November 2011 www.eaton.com...
  • Page 63 Fig. 6-19: Control Schematic 65A7355H01 November 2011 www.eaton.com...

  • Page 64: Renewal Parts

    110-120 VAC / 2.6A 65A7002G10 220-230 VAC / 1.4A 65A7002G12 Attributes Ua (DC) 24-48-60-110-125-220-250 V Ua (AC) 110-120-220-230 V 70…110% Ua (DC) Operating Limits 85…110% Ua (AC) Insulating voltage 2000 V 50/60 Hz (for 1 min.) 65A7355H01 November 2011 www.eaton.com...
  • Page 65 65A7013G06 110-120 VAC / 1.7A 65A7013G10 220-230 VAC / 0.8A 65A7013G12 Attributes 90 Watt 0.8A Ua (DC) 24-48-60-110-125-220-250 V Ua (AC) 110-120-220-230 V 85…110% Ua Operating Limits Insulating voltage 2000 V 50/60 Hz (for 1 min.) 65A7355H01 November 2011 www.eaton.com...
  • Page 66 Breaker Auxiliary Contacts (S1 & S2) Standard circuit breakers contain a 10A / 10B auxiliary switch. 6A / 6B contacts are used by the circuit breaker, therefore 4A / 4B contacts are available for the end user. 24 VDC / 10.0A 48 VDC / 6.0A 60 VDC / 5.0A 110-125 VDC / 2.9A...

  • Page 67: Optional Accessories

    110-120 VAC 65A7019G10 220-230 VAC 65A7019G12 Attributes Ua (DC) 24-48-60-110-125-220-250 V Ua (AC) 110-120-220-230 V 85…110% Ua Operating Limits DC= 5 W Continuous Power (Pc) AC= 5 VA Insulating voltage 2000 V 50/60 Hz (for 1 min.) 65A7355H01 November 2011 www.eaton.com...
  • Page 68 Undervoltage Release (UVR) This device opens the circuit breaker when there is notable lowering or loss of its power supply. It can operate with both direct and alternating current. 24 VDC 65A7006G01 48 VDC 65A7006G02 60 VDC 65A7006G13 110-125 VDC 65A7006G04 220-250 VDC 65A7006G06...

  • Page 69: Appendix

    Check insulation of main circuit and control circuit Check resistance of main circuit Check the nameplate Operate electrical-charge/close/open Check the chassis with breaker The counter does not advance properly 5.2.2 # of Operations at End: ________ Signature: ____________________ Date：_________________________ 65A7355H01 November 2011 www.eaton.com...

  • Page 70: W-Vaci Vacuum Circuit Breaker Equipment Check List

    W–VACi Vacuum Circuit Breaker Equipment Check List Customer Name: Eaton Order: Customer PO Quantity: Date of Delivery： YYYY_______ MM______ DD_____ Technical Parameters of Breaker W-VACiR Fixed □ W-VACi Withdrawable □ Type □12 □17.5 □24 Rated Voltage (kV) □630 □800 □1250 □1600...
  • Page 71 Eaton’s Electrical Sector is a global PowerChain solutions help enterprises leader in power distribution, power achieve sustainable and competitive quality, control and automation, and advantages through proactive monitoring products. When combined management of the power system as a with Eaton’s full-scale engineering...

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