MVF Series User Manual
Contents
1. State AC Motor Control MVF Medium Voltage Vacuum Contactor Phasetronics Inc dba Motortronics 1600 Sunshine Drive Clearwater Florida 33765 USA Tel 1 727 573 1819 or 888 767 7792 Fax 1 727 573 1803 or 800 548 4104 www motortronics com MVF MN REV 1 03 REV 07 14 152. a contactor or transport using a lifting device in the overhead position Do not work on contactors unless the primary circuits are disconnected by a visible air gap disconnect or other suitable disconnecting means and CAUTION round When connecting bus bars tighten bolts according to then manual values Contactors should be tightly mounted on a horizontal plane Do not install the contactors in areas with high temperature high humidity dust corrosive or vibrating conditions Concrete dust or any other dust should not be inside the product when it installed It can cause fire or incorrect operation 1lPage MVF Series Safety Practices during Operation Dj Ne MMA Do not touch the primary circuit or the control circuit N WARNING Do not insert or drawout the contactor in the closed condition Do not leave contactors in an intermediate position Always place the CAUTION contactor in the test or connection position Do not work on contactors unless the primary circuits are disconnected a visible air gap disconnect or other suitable WARNING disconnect and the contactor terminals are grounded Replace the vacuum interrupter when the wipe is below 02 inches 0 5mm e Failure to correctly maintain the equipment could result in serious injury and product failure and can prevent successful functioning of connected apparatus Do not work on contactors with power being
3. supplied to the control circuit e Do not leave maintenance tools near the contactor CAUTION Do not work on closed contactors Be sure that bolts are tightened according this manual after replacement and check the tightness periodically e The replacement of vacuum interrupter shall affect the performance of contactor consult factory before replacement Note and check the relationship between each wire and its associated auxiliary switch terminal 21 Page Table of Contents Safety Practices 1 General 1 1 Specification 1 2 Operating Time amp Current 1 3 Control Voltage Range 1 4 Rated Current of Auxiliary Contact 1 5 Additional Ratings 1 6 Application Condition 1 7 Ordering System 1 8 Application Considerations 2 Receiving Handling Storage and Installation 2 1 Receiving 2 2 Handling 2 3 Storage 2 4 Installation 2 5 Inspection before Operation 2 6 Tightning Torque for Bolts 3 Structure and Explanation of Operation 3 1 Structure 3 2 Explanation of Operation 3 3 Structure of the Vacuum Interrupter 3 4 Structure of Cradle Type and Interlock 3 5 Inserting amp Withdrawing 3 6 Control Circuit Diagrams 4 Inspection and Maintenance 4 1 Visual Inspection every 1 6 months 4 2 Periodic Inspection 4 3 Checking Vacuum and the Contact Erosion Limit 4 4 Replacements for Main Components 4 5 Troubleshooting 5 Specification Overview 6 Dimensions 3lPage MVF 1 Gener
4. 7 MOTORTRONICS Solid State AC Motor Control Instruction WEWENI Safety Practices This instruction manual applies only to the MVF Series Vacuum Contactor regarding installation and maintenance procedures Installing and maintaining these products improperly may result in serious personal injury property damage or even death Therefore this instruction manual must be read and understood at every step in unpacking assembly operation and maintenance of contactors Only qualified persons familiar with installing and maintaining contactors are permitted to work on contactors and this instruction manual should be accessible to those persons at all times If further information is required please contact Motortronics Inc Labels Labels used in this instruction manual are DANGER WARNING and CAUTION depending on the situation Safety Practices during Operation Indicates an imminently hazardous point which if ignored will result in yA 11 MMA death or serious injury Indicates a potentially hazardous point which if ignored could result in N WARNING death or serious injury Indicates a potentially hazardous point which if ignored may result in CAUTION minor or moderate injury This signal also warns operators to work safely Safety Prac es during Installation Excessive heavy weight could cause serious personal injury or damage To avoid this situation please don t hand carry
5. Series Vacuum Contactor ON OFF indicator ON means closed condition OFF means open condit n B Counter The counter when present shows how many times the contactor has operated since it was made The counter may read 100 when you receive the contactor because it was tested after manufacturing B Control plug The control source is supplied through the control Jack Draw out button Fuse Fuses prevent the magnification of the short circuit current Fuse holder Fuse melting detector The fuse melting detector can show electrically whether the fuse has blown or not Manual checking hole A manual checking hole is used to close the contactor manually Emergency trip button Only the latched types have the trip button which is used in emergencies Latch device Front cover B Name plate B Position switch The position switch indicates electrically whether the contactor is in the TEST or CONNECTION position 10 Page MVF Series 2 Interlock No inieriock condition interlock action interlock release Remark Ifthe contactor is closed it The interlock pin attached cannot insert and withdraw in in frame inside prevents 1 Open the contactor Standard the TEST and CONNECTION the contactor from inserting 7 position mechanically The interlock pin prevent ane the closing mechanically Move the contactor to The conta
6. al The MVF Series of Vacuum Contactors are suitable for switching and controlling 3 phase motors with squirrel cage or slip ring rotor capacitors and transformers These are designed and manufactured to withstand frequent switching 1 1 Specification Rated Power frequency Interrupting Rated voltage current withstand voltage Bl rating Covegory Qpereting cys e 7 2kv 200A 400A 20k 60kV 4KA 50 MVA Aca 1000 operations hour 1 2 Operation Time amp Current Closing Holding Tripping Closing Tripping janaita current A current A current A time ms time ms ACDC Continuously 100 125V energized typo kone 30 05 Max 110 100 125V ACDC Latched type 200 230 40 Max 110 ACID 200 230 1 3 Control Voltage Range 1 Closing 85 110 of rated voltage 2 Opening 75 110 of rated voltage latching type only 1 4 Rated Current of Auxiliary Contact Voltage Rated current ACIIOV 5A AC220V 2A 1 5 Additional Ratings Drop out control voltage Chopping current AC DC25V 1A 1 6 Application Condition CAUTION 1 Ambient temperature 5 C to 40 C 23 F to 104 F Do not install contactors in the high 2 Relative humidity below 85 temperature high humidity dusty 3 Altitude less than 1000m 32811t A S L Above Sea Level corrosive or vibrating environments Please contact us for the special applications alPage MVF 1 7 Or
7. amine the contents for any signs of damage such as broken missing or loose components If damage or loss is detected notify our nearest office or representatives and file a claim with the freight carrier Inspection after unpacking 1 Check the type rating and quantities with the specification sheet 2 Check contactors for any damage or missing materials 3 Check all the accessories and spares supplied 2 2 Handling Contactors must be handled with care to avoid damage Ensure that vacuum contactors do not suffer impact or other physical stress during handling Contactor damage may cause serious harm to both persons and property 2 3 Storage Store contactors in a dry dust free and well ventilated room Contactors should be stored in the open condition CAUTION Conerete dust or any other dust inside the contactor may cause fire or damage to the contactor 6IPage MVF 2 4 Installation 1 Confirm the type and rating check for damage and clean contactors with a dry cloth before installing contactors into the switchgear 2 Mount contactors securely on a flat surface Refer to section 6 of this manual for dimensions and section 2 6 for torque requirements 3 Clean the connecting surfaces with a dry cloth and then connect the 3 phase cables buses and earth terminals Be careful not to impact the enclosure or contactor with the cables or bus CAUTION Do not work on contactors unless the primary ci
8. and tighten the bolts m Reverse the action in the previous step if the new fuses are shorter Fig 4 2 Replacing the fuse 17 Page MVF Series 2 Replacing the closing coil The contactor employs a pair of magnet coil for each contactor Remove the moving core Fig 3 1 m Remove the rear cover Pull out control plug of the closing coil m Loosen the bolts B fixing the closing coil m Remove the failed coils out toward the front cover m Insert the new coils Connect the leads of the closing coil Reinstall the moving core and rear cover m After reassembling check the operation of the contactor electrically Fig 4 3 D Coil support B Closing coil Rear plate Coil core Bolt Gap plate Stainless Rubberplate 3 Replacing the auxiliary switch m Release the support i and remove the wires from the auxiliary switch If auxiliary switch 2 needs replacing release the bolt and cable m Replace the failed auxiliary switch m Reverse the action in the previous step and check the operation of the switch manually using the manual checking hole Fig 3 3 m Check the operation of the switch electrically Fig 4 4 Auxiliary switch support B Auxiliary switch 18 Page MVE ries Note and check the relationship between each wire and its associated CAUTION Auxiliary Switch terminal 4 Replacing the vacuum interrupter m Release the pressing plate R
9. ate 8 which is fixed on the main shaft 3 pushes the pressing spring 6 so the movable stem of the vacuum interrupter 7 is moved up to make the CLOSED condition a For latched type mechanical latching the latch device holds the moving core of the contactor closed against the closing coil after the contactor is energized closed and the control source is removed 2 Opening a For continuously energized types if the closing coil is de energized by the OFF signal and the opening spring is released to the OPEN condition then opening of the contactor is completed a For latched type if the trip coil is energized by OFF signal or the trip button is pushed the hook roller of the latch device is released and the moving core moves to OPEN condition by the opening spring 3 3 Structure of the Vacuum Interrupter The vacuum interrupter has the contact stem 3 the contacts 1 the bellows and the ceramic insulator The contact is designed to guarantee 1 million operations and to restrain the transient recovery voltage under 1A chopping current The low pressure in the vacuum interrupter is guaranteed for over 30 ef o years of service so the vacuum interrupter is maintenance free But if necessary it can be checked a vacuum tester fi 9 Page MVF Series 3 4 Structure of Cradle Type and Interlock 1 Structure of cradle type Fig 3 3 is the cradle type of MVF
10. clean the contact it contact PN ol ia conto sel resistance is high Replace it if necessary fel FE Remove ino causo othe taut and pie te Detective resistor Resistor Check the continuity of the resistor ETEA Check the vacuum interrupter If necessary Intomuptar witout replace it o Punctured rectifier Check the rtir I necessary replace it 21 Page 5 Specification Overview Specification Fixed type without fuse Draw out type without fuse Type ea 34 72 4 0 X 0 3 0 12 34 72 4 C B F1 0 12 Taiched WTEALKOTOT TTTLBFITI Rated insulation voltage KV 72W Rated operation voltage KV T2W Rated frequency Hz 50 60 Hz Rated current A 200A Impulse withstand voltage KV BIL ORV Power frequency withstand voltage KV min 20 KVIN Control dielectric strength kV min avin Making and breaking capabiliy KA TRA Breaking Capacity Et 4 50 MVAGT ZKV kA O 3min CO 3min CO Ez 50 72 Peak current A Tsec EEI 30805 KA Continuously Mechanical Endurance energized 1 000 000 operations Laiched 300 000 operations Contri voltage V AGIDG 100 125 V Auxiliary contact G Normally Open and 2 Normally Closed Gontacis Fle ad capas WSR Sou Transformer WAT 4000 0 apace RVAR 200 KVAR Waar aT Bigs Sig RE rang per Tie and Curent Giosna carart opening Sosio Opera A Current A im Continu
11. ctor cannot be AN ONA GTION 2 closed during the process of The auxiliary switch cuts off position and then close inserting and withdrawing the control source during the contactor Option insertion or withdrawal electrical interlock Fig 3 4 g i i HA E jii ini cosine Movingcore ciosg co i l 11 intetoekpin IL H Interbekpin i Tast or Gomecton Testor Comecton oaan e e Irioock suppor Insertion or Withdrawal Test or Connection position FILE 3 5 Inserting amp Withdrawing 1 How to insert the contactor in the E F cradle Inserting Set the wheels of the contactor exactly on the guide rail of the cradle The lifter should be used when the contactor is lifted in order to install it into switchgears When the contactor reaches the TEST position the interlock pin prevents the draw in at this position Push the draw out button Fig 3 5 and then insert the contactor to the CONNECTION position If the contactor is in the correct position the interlock pin is in the hole on the interlock support and the female contact will be inserted fully into the terminal Fig 3 5 Interlock Drawout release bar bution Withdrawing When a contactor is withdrawn the contactor cannot be operated because of the interlock In OPEN condition push the draw out button Fig 3 5 and pull out a contactor to the TEST position A jA Tela Do not touch the primary circuit or the control circuit N WARNING Do not insert or d
12. dering System Non Latching Rated Rated Current 6 iguration Model Number Voltage Amps lg Fixed Mount Dbl Terminal w o counter non 34 72 4 C X 0 3 0 12 7 2KV 400A Pepe jimla Draw out Compartment Style non fused 34 72 4 C B F1 0 12 7 2KV 400A paiva ey Latching Rated Rated Current oo curation Model Number Voltage Amps ig Fixed Mount DBI Terminal w o counter non pane at kk fused 120VAC control AW TIR Draw out Compartment Style non fused 120VAC control 1 8 Application Considerations 1 Verify the voltage and current requirements of the load are within the specified ratings of the contactor 2 The vacuum interrupter should be replaced after 1 000 000 operations If the contactor is not protected by fuses the vacuum interrupter should be replaced if they have interrupted fault currents at or near their maximum interrupting rating S Page 2 Receiving Handling Storage and Installation MVF Series Vacuum Contactors are subjected to complete factory production tests and inspection before packing They are shipped in packages designed to provide maximum protection to the equipment during shipment and storage CAUTION Excessive weight can cause serious injury or damage To avoid this situation Do NOT hand carry a contactor or transport using on a lifting device in the overhead position 2 1 Receiving When contactors are delivered receivers should ex
13. elease the Insulation rod 2 from the vacuum Interrupter 6 and separate the flexible connector 6 m Loosen the upper fixing bolts from the upper connector 3 m Replace the new vacuum interrupter m Reverse the action in the previous step and check the stroke and wipe of the vacuum interrupter Fig 4 5 Pressing plate Insulation rod Upper connector Flexible connector Vacuum interrupter The replacement of vacuum interrupter shall effect the performance of CAUTION contactor so consult with us before replacement MVF Series 191 5 Replacing the source control unit m Open the rear cover if the contactor has a rear cover m Remove the cable tie Pull out disconnect the control plug Fig 4 6 m Release the fixing bolt Fig 4 7 m Replace the control unit Fig 4 8 m Reassemble reversely Fig 4 8 20 Page MVE Series 4 5 Troubleshooting Does not close Does not open Latching motion latch Burnt coil of closing electromagnet Surface flashover Probable causes Cheek or fix Bhs FOETENS Inzease te vag to mora than 2 o ne a TE Decree vege nner a 110 of Re ej Defective control circuit Check the control circuit diagrams 3 Check the height of the roller If necessary adjust Impertect latch mechanism Latch mechanism pie taht eter Loose bots Check the tightness of bots X Check the wiring and
14. hanisms have a low maintenance requirement and the interrupters are maintenance free during their working life The maintenance is determined by environmental influences switching frequency and so on CAUTION Failure to maintain the equipment could result in serious injury and product failure and can prevent successful functioning of connected apparatus Do not work on contactors with power being supplied to the control circuit Do not leave maintenance tools near the contactor Do not work on closed contactors Be sure that bolts are tightened to the required torque value see section 2 6 after replacement and check the tightness regularly 4 1 Visual Inspection every 1 6 months The purpose of the visual inspection is to confirm normal operation and should be performed every 1 to 6 months depending on duty service No Items Procedure of checking kl ON OFF indicator Check if each state of ON OFF is identified accurately 2 Abnormal smell Check if the closing coil is overheated or burned 3 Damage Check for cracks breaks and discoloration 14a Pa 4 2 Periodic Inspection Gandard interval beat Toms hock procedure isan yeas ioan ana ay when the dst or hum i extrema Main body yen Yacomporentis badiy damagod pls i a yeas ortise Ghad ik pin ot tuso ut Down Fatsels own a phases sreuid bo placed
15. ously Energized Type 3 05 Max 110 Max 40 Lathe Toe a B Mano Max 28 cont vorago Tg STOR oT Opening TETI oi aod viage Fated Curent acing Coa vaas LA EA Rated Gurent 5A ZA Operation condition Atitude Tess than 1000m ASL Relative humidiy Below 95 Ambient temperature FTE Switching frequency Not faster than 20 operations 1 minute Required mounting direction Horizontal or Vertical Additional Ratings Drop out control voltage ACDC 25V Chopping current TA 22 Page 6 Dimensions 254 4 910 SL 10 0 4 00 39 Dimensions specified in mm inches 23 Page MVE Series TERMINAL BUSBAR 32X6t TERMINAL BUSBAR 1 26 X0 24 t 250 3 8 Dimensions specified in mm inches 24 Page MVF Series MOTORTRONICS W 25 Pa Solid State AC Motor Controls For the latest product information visit www motortronics com Phasetronics Inc dba Motortronics 1600 Sunshine Drive Clearwater Florida 33765 USA Tel 727 573 1819 or 888 767 7792 Fax 727 573 1803 or 800 548 4104 E Mail sales motortronics com User Manual Rev 1 01 Jul 15 2015 MOTORTRONICS Solid
16. rawout the contactor in the closed condition Do not leave contactors in an intermediate position Always place the CAUTION contactor in the test or connection position 12 Page MV 3 6 Control Circuit Diagrams 52 pin control plug Continuousiv Energized l Awilanv swich cos MI BO g Sao ae Ls 21 pin control plug Hatched auxiliary switch 52 pin control ph fe jie sonra 4 Nore ere ima E z IT E E I 21 pin control plug Latched AC Open Control auxiliary switch 52 pin control pug 21 pin contol plug Allan switch CC Closing coil SCU Source control unit CTD Condensor trip device TC Trip coil CL Electrical interlock Aux SW Auxiliary switch 13 Page MVF Series 4 Inspection and Maintenance PY Tel Do not touch the primary circuit or the control circuit WARNING Do rot insert or drawout the contactor in the closed condition Do not leave contactors in an intermediate position Always place the CAUTION contactor in the test or connection position Maintenance shall be carried out to ensure trouble free operation and achieve the longest possible working life of the contactors MVF Series Vacuum Contactors are characterized by their simple and robust construction and have a long life expectancy Their operating mec
17. rcuit is disconnected by the visible breaker and the contactor terminals are grounded When connecting bus bars tighten bolts per the manual requirements Contactors are only mounted on the vertical or horizontal plane tightly 2 5 Inspection before Operation 1 Confirm contactors are installed properly If not install contactors again according to section 2 4 2 Operate contactors a few times manually to ensure that contactors close and open smoothly Then operate contactors electrically in the test position and confirm that the ON OFF indicator works properly 3 Confirm that no tools and materials are left near the contactor 2 6 Tightening Torque for Bolts Bolt Size inch pounds Nm kgf em M6 425 48 49 MB 106 12 122 M10 213 24 245 M12 373 422 430 7lPage MVF 3 Structure and Explanation of Operation 3 1 Structure Fig 3 1 is the section drawing of the mechanism part in the MVF Series Vacuum Contactor Fig 3 1 Close Condition Closing coil B Moving core B Main shaft B Pressing plate 8 Page MVF Se Open Condition Tripping spring Pressing spring Vacuum interrupter Insulation frame 3 2 Explanation of Operation 1 Closing m When the closing coil f is energized the moving core 2 moves toward the closing coil and compresses the opening spring At the same time the pressing pl
18. ter is maintenance free But if necessary it can be checked by a vacuum tester 2 Checking the contact erosion Since the contacts are contained inside the interrupter they remain clean and require no maintenance However during high current interrupting there may be a minimum amount of erosion from the contact surfaces To check the erosion of the interrupter contacts and carry out the following operations Close the contactor m Open the rear cover if the contactor has a rear cover Measure the distance between the dish washer and the pressing plate With new interrupters this distance is about 0 047 0 059 inches 1 2 1 5 mm If it is reduced to 0 020 inches 0 5 mm the three interrupters must be replaced Checking the contact erosion is important to evaluate the efficiency of the interrupters Refer to the Fig 4 1 Fig 4 1 L_ SS a t SS u 1 po Pressing plate 1215mm ia sala Dish washer Replace the vacuum interrupter when the wipe is below 0 02 inches 0 5 WARNING mm MVF Series 4 4 Replacements for Main Components Remove the contactor from the enclosure to ensure that all high voltage sources are disconnected 1 Replacing the fuse m Renew the fuses The fuse must have the striker facing towards the front cover If new fuses are longer than old ones rear fuse holders can move 100 mm backward Insert new fuses
19. the same tme ruse Fuse town yea 5 Checkit te tuso Bown indicator operates smoot indicator ka 4 If not put the grease on the moving parts conactwoar 23ars por Checkin tno contact ross out ot spac Sooo cycles gt iiie al 3 vacum bottes shou be epace lhe samo time Vacuum nemptr Press years check vacuum by using te vacuum tastar Tarres Tyeare Chock ara gon bts Spin years check torsoratenos orust Open and close oe n mearan Ino col discolored roplaco t chosing cot years necs ane ttn ba G ad aparaton at 85 110 ting check tr sorte or rust Pee ayes LL Put grease on he moving prs The gap bereon 1e roler and 1o operating piate shouid be 02 05 mm PEES Ihe place Lateh Davea M coiis decor place fin Gell syen One should be operated at 85 110 of rating Sh s The resistance of contact of auxiliary switch should be below 200 mQ It ary sviten Aw yeas not dean he coin lee Th cect plays completly insertod Tang ak Pare on tno moving par weng Contact ba The female contact should be inserted above 10 mm mesh wreck years Crackit moves snooty Main conductor 3 years Above 1000 MQ between electrodes and earth gnd slaten Control mu syears Above MA boween ho control onnectons reat 15 Pa 4 3 Checking Vacuum and the Contact Erosion Limit 1 Checking the vacuum The low pressure in the vacuum interrupter is guaranteed for over 30 years of service That means the vacuum interrup
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