Related Manuals for Eaton DST-2-VR+ Series
Summary of Contents for Eaton DST-2-VR+ Series
- Page 1 Supersedes March 2018 Instruction Book IB182942EN Effective July 2018 DST-2-VR VR-Series Replacement Circuit Breaker DST-2-VR + 250 2000A Shown...
- Page 2 SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES. In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to damage or loss of use of equipment, plant or power system, cost of capital, loss of power, additional expenses in the use of existing power facilities, or claims against the purchaser or user by its customers resulting from the use of the information, recommendations and descriptions contained herein.
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Page 3: Table Of Contents
6.8.1 CLOSURE™ TEST 4.9.1 OPERATIONS COUNTER 6.9 MAINTENANCE RECOMMENDATION SECTION 5: INSPECTION & INSTALLATION SECTION 7: REPLACEMENT PARTS 5.1 EXAMINATION FOR DAMAGE 7.1 GENERAL 5.1.1 NAMEPLATE VERIFICATION 7.2 ORDERING INSTRUCTIONS 5.2 SURE CLOSE MECHANISM ADJUSTMENT Instruction Book IB182942EN July 2018 www.eaton.com... -
Page 4: Section 1: Introduction
RATINGS. 1.1 VISUAL INSTRUCTION BOOKLET ESSENTIALS ALL POSSIBLE CONTINGENCIES WHICH MIGHT ARISE DURING Eaton provides additional documentation designed to enhance the INSTALLATION, OPERATION, OR MAINTENANCE, AND ALL DETAILS technical information provided in this instruction booklet for the AND VARIATIONS OF THIS EQUIPMENT ARE NOT COVERED BY THESE VR-Series + circuit breakers. - Page 5 58 / 97 DST-2-15-VR + 41 DST-2-15-500/750 15.0 1200 / 2000 77 / 130 All circuit breakers have a 3 second short-time and 3-cycle interrupting ratings. Non-standard rating. Requires bus bracing study and additional switchgear bracing. Instruction Book IB182942EN July 2018 www.eaton.com...
- Page 6 DST-2-VR VR-Series Replacement Circuit Breaker Tablt 2. DST-2-VR + Dimtnsions Existing Circuit Breaker Rated Continuous Current at 60 Hz Circuit Breaker Type (Amps) DST-2-VR + 1200 / 2000 65.38 25.75 7.88 34.18 11.00 19.81 Instruction Book IB182942EN July 2018 www.eaton.com...
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Page 7: Section 2: Safe Practices
Circuit brtaktrs art tquipptd with saftty inttrlocks. Do not • dtftat thtm. This may rtsult in tquipmtnt failurt, rtsulting in dtath, stvtrt ptrsonal injury, tquipmtnt damagt and/or improptr optration. Instruction Book IB182942EN July 2018 www.eaton.com... -
Page 8: Section 3: Receiving, Handling, And Storage
3/4” socket. One rotary racking handle is provided per order. If necessary, additional racking handles may be purchased directly from Eaton. This handle is used with the rotary racking system for insertion and removal. Ltvtring Handlte: The original DST-2 levering handle is used to assist in moving the circuit breaker into and out of the cell. -
Page 9: Handling
Tablt 3. Approximatt Wtight by Typt Type Amperes DST-2-VR + 500 1200 650* 2000 750* DST-2-VR + 750 1200 630* 2000 750* otte: * = An additional 75# is added with the optional internal Rotary Racking system. Instruction Book IB182942EN July 2018 www.eaton.com... - Page 10 Lock Out / Tag Out Manual Charging Socket Push To Close Button Levering In Access Spring Charged / Discharged Indicator Interlock Pedal Handle Operations Counter Manual Motor Cut-Off Switch Breaker Position Indicator Push To Open Button Tow Hitch Instruction Book IB182942EN July 2018 www.eaton.com...
- Page 11 DST-2-VR VR-Series Replacement Circuit Breaker Figurt 3.3.b. Rtar Exttrnal Vitw of DST-2-VR + Rear External View Lifting Points Anti Rotation Self Adjuster (Optional) Secondary Disconnects Ground Contact Primary Disconnects Shutter Roller Instruction Book IB182942EN July 2018 www.eaton.com...
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Page 12: Section 4: Description And Operation
The purpose of the contact erosion indicator is to monitor the erosion of the vacuum interrupter contacts, which is very minimal over time with Eaton vacuum interrupters utilizing copper-chrome contact material. The VR-Series + vacuum interrupter assembly incorporates both the original vacuum interrupter erosion indicator and the contact-spring wipe into one all-encompassing indicator. -
Page 13: Contact Wipe And Stroke
Figure 4.8.c. Interference of the trip “D” shaft with the trip latch prevents the linkage from collapsing, and holds the circuit breaker closed. Instruction Book IB182942EN July 2018 www.eaton.com... -
Page 14: Tripping Operation
Typical ranges as observed using nominal control voltages are listed in Table 4. Instruction Book IB182942EN July 2018 www.eaton.com... - Page 15 ‘C’ and ‘NO’ Brown Switch Open in all except between ‘Test’ Terminal Block or Accessible Terminal and ’Connect’ positions Position Switch 1 Position Switch 2 Closed in all except between ‘Test’ and ‘Connect’ positions Instruction Book IB182942EN July 2018 www.eaton.com...
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Page 16: Racking System Trip And Spring Release Interlocks
4.9.1 OPERATIONS COUNTER All DST-2-VR + breakers are equipped with a mechanical operations counter (Figures 3.3). As the breaker opens, the linkage connected to the pole shaft lever advances the counter reading by one. Instruction Book IB182942EN July 2018 www.eaton.com... - Page 17 Spring Release Assembly Manual Charge Socket Latch Check Switch (To Rear of Motor Cutoff Switch) Shunt Trip Assembly Ratchet wheel Motor Cutoff Switch RH Closing Spring Operations Counter Closing Cam Reset / Opening Spring Charging Motor Instruction Book IB182942EN July 2018 www.eaton.com...
- Page 18 Anti-Close Interlock Pole Shaft Spring Crank Motor Ratchet Lever Closing Spring Fixed End Cam Shaft Spring Release (Close) Clapper Closing Spring Spring Release Latch (Close Roller) Spring Release (Close) Coil Holding Pawl Drive Pawl Instruction Book IB182942EN July 2018 www.eaton.com...
- Page 19 4.8.d. Circuit Breaker Closed and Closing Spring Charged Charging Schematic Main Link Roller Closing Cam Trip Bar “D” Shaft Main Link Cam Shaft Trip Latch Reset Spring Operating Rod Banana Link Shunt Trip Lever Pole Shaft Trip latch Shunt Trip Coil Instruction Book IB182942EN July 2018 www.eaton.com...
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Page 20: Section 5: Inspection & Installation
MEASUREMENTS AND ADJUSTMENTS SHOULD NEVER BE ATTEMPTED the information on the purchase order. If any discrepancies exist, IN AN ENERGIZED STRUCTURE. IF THE STRUCTURE CANNOT BE notify Eaton’s Electrical Services & Systems for resolution prior to DE-ENERGIZED, THEN PROPER PERSONAL PROTECTIVE EQUIPMENT PER proceeding. -
Page 21: Manual Operation Check
Close and trip the breaker by pushing the close lever then the trip breaker is moved between the disconnect and test position. The lever (Figure Set 3.3). breaker should discharge its closing springs when moved between Instruction Book IB182942EN July 2018 www.eaton.com... -
Page 22: Operation, Insertion And Removal (Levering-In Version)
Check that the closing spring status indicator reads “DISCHARGED” and that the main contact status indicator reads “OPEN” . Manually trip, close, and trip the breaker as needed to obtain this status. Instruction Book IB182942EN July 2018 www.eaton.com... -
Page 23: Removal Procedure (Levering-In Version)
Continue levering out until the position breaker’s left front wheel. indicator on the floor of the cell shows test and the Interlock Pedal rises to lock the breaker in position. At this time you are in the test Instruction Book IB182942EN July 2018 www.eaton.com... -
Page 24: Operation, Insertion, And Removal For 5Kv And 15Kv Models With Rotary Racking Provisions
“connect” position is reached and the handle can no longer be turned, as indicated on the switchgear floor mounted breaker position indicator, Figure 5.5. Do not forct tht rotary racking handlt btyond this point as brtaktr damagt will occur. Instruction Book IB182942EN July 2018 www.eaton.com... - Page 25 The racking hex head access handle is also released so that it can be raised for rotary racking. (Figure 5.5) Instruction Book IB182942EN July 2018 www.eaton.com...
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Page 26: 15Kv Removal Procedure
“test” position to the “connect” position. The motor disconnect switch can be accessed while the door is open for installation or removal process, or flipped on or off with the racking handle. Instruction Book IB182942EN July 2018 www.eaton.com... -
Page 27: Section 6: Inspection & Maintenance
Test 6.8.1 If < 0.6 Contact the PBC ™ ™ at 1-877-276-9379 otte: Contact Eaton for any mechanism maintenance other than adjustment or replacement of control components. BOLT SIZE 8 - 32 10 - 32 .25 - 20 .31 - 18 .38 - 16... -
Page 28: Vacuum Interrupter Integrity Test
ALL OPERATING PERSONNEL STAND AT LEAST ONE METER AWAY IN FRONT OF THE CIRCUIT BREAKER. WARNING DC HI-POTENTIAL TESTS ARE NOT RECOMMENDED BY EATON. DO NOT APPLY DC AT ANY LEVEL TO VR-SERIES CIRCUIT BREAKERS With the circuit breaker open and securely sitting on the floor, connect all top/front primary studs (bars) together and the high potential machine lead. -
Page 29: Insulation
The recommendations and information contained herein are based Remove the circuit breaker from the circuit breaker • on Eaton experience and judgment, but should not be considered to compartment be all-inclusive or covering every application or circumstance which Close the circuit breaker •... - Page 30 (Charging handle). Continue charging the closing springs until a opening. If it is not aligned, this indicates a problem with the “click” is heard and the status indicator shows ‘Charged’ (Figure circuit breaker - stop the test and consult the factory. 6.6). Instruction Book IB182942EN July 2018 www.eaton.com...
- Page 31 Figurt 6.8. With Marktr in Holt “C” , Whilt Closing Circuit Brtaktr Figurt 6.6. Manually Charging Closing Springs Figurt 6.9. Polt Shaft Locattd On Ltft Sidt Of Circuit Brtaktr Figurt 6.7. Makt a Cltar and Htavy Mark Instruction Book IB182942EN July 2018 www.eaton.com...
- Page 32 Figurt 6.14. Illustrativt Ttsting Tapt Samplt CloSure Tool CloSure Distance "X" Inches Marker 8.0 to 10 Inches *Figure not to scale *Note: Use the center of the marker diameter to Figurt 6.12. Evaluatt tht CloSurt™ Ptrformanct determine "X" distance Instruction Book IB182942EN July 2018 www.eaton.com...
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Page 33: Maintenance Recommendation
After a ten year service interval or when ten thousand operations have been reached, contact your local Eaton representative to arrange for factory recertification. During the ten year service interval, no supplemental lubrication with light machine oil is recommended. - Page 34 • Control power (CS/T Switch, remains made) Mechanism • Trip Coil Clapper (Not resetting) • Trip Bar or Trip Latch (Poor engagement of mating or worm surfaces) • Trip Bar Reset Sprint (Loss of torque) Instruction Book IB182942EN July 2018 www.eaton.com...
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Page 35: Section 7: Replacement Parts
However, when establishing a new operating record, it is a good practice to stock c. Send all orders or correspondence to the nearest Eaton sales one set of control components for every six circuit breakers of the office or contact the PBC direct at 1-877-276-9379. - Page 36 Eaton 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com © 2018 Eaton All Rights Reserved Eaton is a registered trademark. Printed in USA Publication No. IB182942EN All trademarks are property July 2018 of their respective owners.