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Summary of Contents for Eaton AK-2-25-LV-VSR-425A
- Page 1 Supersedes July 2017 Instruction Book IB019009EN Effective November 2017 AK-2-25, AK-2A-25, & AK-3A-25 LV-VSR Breaker-To-Motor Starter Conversion AK-2A-25-LV-VSR 425A 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
SECTION 5.A: INSTALLATION OF AK-2-25 LV-VSR 5.A.1 CELL MODIFICATION INSTRUCTIONS 5.A.2 COMPARTMENT DOOR MODIFICATIONS 5.A.3 INSERTION PROCEDURE 5.A.4 REMOVAL PROCEDURE SECTION 5.B: INSTALLATION OF AK-2A-25 LV-VSR 5.B.1 CELL MODIFICATION INSTRUCTIONS 5.B.2 INSERTION PROCEDURE 5.B.3 REMOVAL PROCEDURE Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 4: Section 1: Introduction
PURCHASER REGARDING A PARTICULAR INSTALLATION, OPERATION, OR current limiting fuses. The contactor successfully withstood the MAINTENANCE OF THIS EQUIPMENT, THE LOCAL EATON’S ELECTRICAL let-though energy of each fuse for a 200kA available symmetrical SERVICES & SYSTEMS REPRESENTATIVE SHOULD BE CONTACTED. - Page 5 AK-2-25, AK-2A-25, & AK-3A-25 LV-VSR Breaker-To-Motor Starter Conversion Table 2. AK-2-25-LV-VSR Dimensions Existing Breaker Rated Continuous Current at 60 Hz Device Type (Amps) AK-2-25-LV-VSR 425A 18.05 3.50 5.00 8.00 20.41 17.10 3.55 Instruction Book IB019009EN November 2017 www.eaton.com...
- Page 6 Table 3. AK-2A-25 & AK-3A-25 LV-VSR Dimensions (AK-2A-25-LV-VSR Shown) Existing Breaker Rated Continuous Current at 60 Hz Device Type (Amps) AK-2A-25-LV-VSR 425A 16.29 3.50 4.50 8.12 20.19 18.00 3.55 AK-3A-25-LV-VSR 425A 16.29 3.50 4.50 8.12 20.19 18.00 3.55 Instruction Book IB019009EN November 2017 www.eaton.com...
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Page 7: Section 2: Safe Practices
Failure to do so could result in a flash over and possible death, personnel injury or property damage. LV-VSRs are equipped with safety interlocks. Do not defeat them. • This may result in death, bodily injury or equipment damage. Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 8: Section 3: Receiving, Handling, And Storage
LV-VSR for any signs of shipping damage such as broken, missing or loose hardware, damaged or deformed insulation and other components. File claims immediately with the carrier if damage or loss is detected and notify the nearest Eaton’s Electrical Services & System office. 3.2 HANDLING ... - Page 9 Figure 3.2. Front External View of AK-2-25-LV-VSR Front External View Overload Relay Access Racking Handle Guide Rail Open Operator Lifting Point Lock Out / Tag Out Contactor Status Indicator Secondary Contacts Contactor Operations Counter Handle Pins Instruction Book IB019009EN November 2017 www.eaton.com...
- Page 10 AK-2-25, AK-2A-25, & AK-3A-25 LV-VSR Breaker-To-Motor Starter Conversion Figure 3.3. Rear External View of AK-2-25-LV-VSR Rear External View Secondary Contacts Guide Rail Handle Pins Primary Disconnects Rear Position Stop V201 Vacuum Contactor Lifting Point Instruction Book IB019009EN November 2017 www.eaton.com...
- Page 11 AK-2-25, AK-2A-25, & AK-3A-25 LV-VSR Breaker-To-Motor Starter Conversion Figure 3.4. Front External View of AK-2A-25-LV-VSR Front External View Overload Relay Access Contactor Operations Counter Secondary Block Shim Open Operator Lifting Point Rollers Contactor Status Indicator Secondary Contacts Instruction Book IB019009EN November 2017 www.eaton.com...
- Page 12 AK-2-25, AK-2A-25, & AK-3A-25 LV-VSR Breaker-To-Motor Starter Conversion Figure 3.5. Rear External View of AK-2A-25-LV-VSR Rear External View Secondary Contacts V201 Vacuum Contactor Rollers Primary Disconnects Lifting Point Code Pin (425A Shown) Instruction Book IB019009EN November 2017 www.eaton.com...
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Page 13: Section 4: Description And Operation
When ac is connected directly LV-VSR to the bus terminals in the switchgear compartment. to terminals A and B on the coil shell, the magnet excitation is Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 14: Secondary Connection Block
Also considered in the interlocking is that the LV-VSR should pose no greater risk than necessary to the operator in or out of the cell. Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 15: Section 5: Inspection
Insert the fasteners with a flat washer into the mounting hole of the fuse; use a retaining nut with a lock washer and flat washer to tighten the fuse to the connecting copper. Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 16: Electronic Overload Relay C440
Figure 5.6. C440 Trip Current Adjustment and DIP Switches 5.2 ELECTRONIC OVERLOAD RELAY C440 C440 NEMA Electronic Overload The preferred overload relay provided on Eaton LV-VSR devices is the LED (Unit Status) Phase Imbalance Selection electronic C440 relay. The relay offers four selections of trip classes:... - Page 17 Net, Profibus, and Eithernet IP communication protocols. motor overload is removed. Eaton LV VSRs are equipped with 300:5 or 600:5 current transformers as required by the continuous current Table 6. C440 Overload Relay Dial Settings rating shown on the nameplate of the device.
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Page 18: Manual Operational Check
Testing that measures the primary circuit resistance is not recommended since the results can vary widely on good contacts. It is measured at the factory prior to shipment. If a resistance check is required check the primary resistance described in Section 6. Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 19: Section 5.A: Installation Of Ak-2-25 Lv-Vsr
Use the appropriate tools to cut off these studs to length. See Figure 5.A.4, door with studs. Figure 5.A.4. Compartment Door Modifications Figure 5.A.2. Marking The Cutting Area With Marker Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 20: Insertion Procedure
Figure 5.A.5. Lifting Position Stop Handle Figure 5.A.8. AK-2-25-LV-VSR Clearance With Cell Modification Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 21: Removal Procedure
When the racking handle is in any position other than completely down, the Starter cannot be operated. 5. The Starter is now in the ‘Connect’ position and can be operated. (Figure 5.A.10) Figure 5.A.10. AK-2-25-LV-VSR in ‘Connect’ Position Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 22: Section 5.B: Installation Of Ak-2A-25 Lv-Vsr
Clamping plate track. Remove the lifting device. Drill Bushing 7 . Push the Starter in until the track stops. Lock the two track lock links into place and close compartment door Drilling Template Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 23: Removal Procedure
The position indicator should read ‘Connect’. In this position both primary and secondary contacts are made and the door can be closed. (Figure 5.B.5) otee: Padlocking has been provided by the original equipment manufacturer. Figure 5.B.5. AK-2A-25-LV-VSR Conected (Cell Door Open) Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 24: Section 6: Inspection And Maintenance
As the contacts wear, this gap decreases. When any Eaton representative. gap goes below 0.020 inches, the unit should be replaced. Use the 0.020 inch thick fork shaped over-travel gauge supplied for this measurement, Part Number 7874A59H01. Figure 6-1. Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 25: Vacuum Interrupter Integrity Test
It is recommended that the equipment be capable of delivering AND EQUIPMENT DAMAGE. 25 milliamperes for one minute. 8. Remove ALL shorting wire on Current Transformers and secondary block before placing unit back into service. Instruction Book IB019009EN November 2017 www.eaton.com... -
Page 26: Mechanism Check
A. Armature travel incorrect, causing the contact springs to be ASSEMBLY. compressed into a solid, non-resilient “tube” that stops the crossbar rigidly. Refer to Eaton’s Electrical Services and Systems for 1. Ensure that a jumper is placed on contactor coil assembly assistance. - Page 27 • Close Circuit (CS/C Shorted) Fails To Trip • Control Circuit • Fuses blown (Control Power) • Secondary Disconnects • T-Relay Undesirably Trips • Control Circuit • Trip Circuit (CS/T Shorted) • OL Relay not set correctly Instruction Book IB019009EN November 2017 www.eaton.com...
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Page 28: Section 7: Replacement Of Components
3. Specify the voltage for electrical components. 4. Specify the method of shipping desired. 5. Send all orders or correspondence to the nearest Eaton’s Electrical Services & Systems sales office. 6. Include negotiation number with order when applicable. - Page 29 AK-2-25, AK-2A-25, & AK-3A-25 LV-VSR Breaker-To-Motor Starter Conversion Instruction Book IB019009EN November 2017 www.eaton.com...
- Page 30 Eaton 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com © 2017 Eaton All Rights Reserved Eaton is a registered trademark. Printed in USA Publication No. IB019009EN All trademarks are property November 2017 of their respective owners.
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