Toshiba HV6FS-MLD, Instruction Manual

Page 1: ...ION MANUAL INSTALLATION OPERATION MAINTENANCE HV6FS MLD Vacuum Circuit Breakers Drawout Type 4 8 7 2kV Voltage Classes Fast Closing w UV Release Issued 10 2006 Buy www ValinOnline com Phone 844 385 3099 Email CustomerService valin com ...

Page 2: ...Buy www ValinOnline com Phone 844 385 3099 Email CustomerService valin com ...

Page 3: ...pondence to Field Service Department Toshiba International Corporation 13131 West Little York Road Houston Texas 77041 USA or call 713 466 0277 800 231 1412 800 527 1204 Canada Fax 713 466 8773 Please complete the following information for your records and retain with this manual Model ___________________________________ Serial Number _____________________________ Date of Installation ____________...

Page 4: ...Buy www ValinOnline com Phone 844 385 3099 Email CustomerService valin com ...

Page 5: ...llow instructions Severe property damage might also occur Means that you might be injured if you do not follow instructions Equipment damage might also occur NOTE Gives you helpful information Note The contents of this manual will not become apart of or modify the warranty policy The terms of which are set forth at the end of this manual READ SAFETY SIGNS To avoid injury you must read and follow a...

Page 6: ...practices 4 Be trained and authorized to perform the service maintenance or repair of this equipment 5 Be trained in the proper care and use of protective equipment such as rubber gloves hard hat safety glasses face shield flash clothing etc in accordance with established practices 6 Be trained in rendering first aid SAFETY CODES Toshiba HV6FS vacuum circuit breakers are designed and built in acco...

Page 7: ...erty damage Turn off and lock out Primary and Control Circuit Power before servicing Keep all panels and covers securely in place Never Defeat Modify or Bypass any Safety Interlocks Qualified Operators only DANGER Buy www ValinOnline com Phone 844 385 3099 Email CustomerService valin com ...

Page 8: ...reaker in the Cell 16 PRE ENERGIZATION CHECK 18 General 18 Electrical Checks 18 OPERATION 19 Moving Circuit Breaker From Disconnected to Connected Position 19 Moving the Circuit Breaker From Connected to Disconnected Position 20 Manual Operation 21 Electrical Operation Undervoltage Trip 22 Electrical Operation Flow Chart 23 MAINTENANCE 25 Maintenance Program 25 Maintenance Record 25 Servicing Equi...

Page 9: ...RAGE 34 Storage 34 Inspection During Storage 34 SPECIFICATIONS 35 Table 3 Ratings Motor Operation HV6FS MLD Type 35 WARRANTY AND LIMITATION OF LIABILITY 36 Buy www ValinOnline com Phone 844 385 3099 Email CustomerService valin com ...

Page 10: ... of interest as follows GENERAL DESCRIPTION Provides a description of the equipment information on major components and how they function plus rating information RECEIVING INSPECTION AND HANDLING Describes procedures for receiving unpacking inspecting handling lifting and moving the circuit breaker INSTALLATION Provides information on installing the circuit breaker in the switchgear cell along wit...

Page 11: ... the breaker upon command The circuit breaker can be tripped electrically Arc interruption is accomplished inside sealed vacuum interrupters mounted on track resistant insulators Vacuum interrupters use low surge contact materials that exhibit low current chopping levels reducing switching overvoltages Fig 1 and Fig 2 illustrate and identify the major components of the circuit breaker and cell COM...

Page 12: ...ng the circuit breaker to or from the CONNECTED position while it is ON main contacts closed If the circuit breaker is ON the interlock release lever cannot be raised preventing movement of the breaker in or out of the cell If the lever is raised when the circuit breaker is OFF an interlock prevents the circuit breaker from closing until the lever is returned to its lowered position Hazard of fire...

Page 13: ...se 3 to 5 times will charge the closing spring Closing Spring Status Indicator changes to CHARGED Yellow When the handle is released it returns to its normal position and do not attempt to turn again 4 Manual Close Lever Green Pushing the lever in the direction of the arrow closes the circuit breaker On Off indicator changes to ON 5 Manual Trip Lever Red Pushing the lever in the direction of the a...

Page 14: ...e equipment sufficiently to check for missing parts or concealed damage 3 Check for the presence of accessories that are shipped with the circuit breaker and cell Charging Handle Fig 5 B9 Grease Fig 6 Control Wire Harness Fig 7 3 Keep the circuit breaker and cell upright Never lay the circuit breaker or cell on its side or upside down This may cause damage 4 File a claim with the carrier for any d...

Page 15: ...rcuit breaker and cell When lifting the circuit breaker attach a wire sling to the bolts on the upper left and right corners of the housing as shown in Fig 8 For the cell the sling is attached to the holes located in the upper left and right rear of the support frame as shown in Fig 9 Always use lifting equipment suitable for the weight of the units The capability of the lifting equipment to handl...

Page 16: ...ire derating or other special equipment Contact your nearest Toshiba representative for additional information RATING VERIFICATION Prior to Installation the maximum fault current capacity of the power system at the point of installation should be verified This value must not exceed the symmetrical interrupting capability of the circuit breaker Fig 10 illustrates a typical circuit breaker nameplate...

Page 17: ...n accordance with NEC requirements and should have an adequate voltage rating Cables should be dressed and terminated as appropriate to the voltage class and cable manufacturer s recommendations When terminating shielded cables use termination kits appropriate for the system voltage to taper the insulation and reduce electrical stress Follow the manufacturer s installation instructions provided wi...

Page 18: ...r other abnormal occurrences and to ensure that the metal parts of the equipment other than live parts remain at ground potential The ground terminal is located on the left rear of the cell frame as shown in Fig 13 To make the ground connection first remove the fastening M8 hex head bolt and crimp on terminal provided with the cell and crimp the terminal to the end of the ground wire Then reattach...

Page 19: ...g 15 A control wire harness Fig 16 is furnished with the circuit breaker for making this connection Using the supplied harness connect control wiring in accordance with the appropriate wiring diagram shown in Fig 31 in the OPERATION section of this manual Fig 15 Control Circuit Plug Fig 16 Control Wire Harness Buy www ValinOnline com Phone 844 385 3099 Email CustomerService valin com ...

Page 20: ... power system Open the B9 grease provided and apply a coating to the ends of the six 6 primary stab fingers Fig 17 A portable lifter should be used for the insertion or removal of the circuit breaker if the compartment is above floor level Place the breaker on the lifter and bring it to the same level as the cell Align the hole on the lifter tab with the welded nut on the cell base and remove the ...

Page 21: ... cover indicates the DISCONNECTED position Fig 20 then release the lever Check to make sure the interlock release lever has returned to its original lowered position Insert the breaker holding pin To avoid damage to the equipment and possible injury do not remove the holding pin unless the circuit breaker is being removed from the cell Fig 19 Inserting Breaker into Cell Fig 20 Breaker at DISCONNEC...

Page 22: ...over from installation must be cleaned out Cover all unused openings Install all panels guards and covers A supply of spare parts should be established Instruction manuals and diagrams should be collected and filed ELECTRICAL CHECKS Electrical shock hazard Do not touch energized components during a test using auxiliary power An electrical insulation resistance test should be performed to verify th...

Page 23: ... POSITION 1 Connect the control circuit plug to the breaker Fig 21 2 Check to be sure that the On Off Indicator reads OFF Green Push the manual trip lever in the direction of the arrow if necessary to open the circuit breaker The interlock release lever cannot be raised unless the circuit breaker is OFF 3 Grasp the handles on the breaker with both hands and while lifting the interlock release leve...

Page 24: ...e lifting the interlock release lever with the left hand pull the breaker out of the cell until the arrow on the front cover indicates the DISCONNECTED position has been reached Fig 23 then release the lever Check to make sure the interlock release lever has returned to its original lowered position 3 Optionally disconnect the control circuit plug from the breaker Fig 24 The plug may remain connec...

Page 25: ...ing spring status indicator shows DISCHARGED white Turn the closing handle clockwise 3 to 5 times to charge the closing spring Fig 25 Closing Spring Status Indicator changes to CHARGED Yellow When the handle is released it returns to its normal position and do not attempt to turn again Fig 26 If the closing spring status indicator shows CHARGED yellow Do not attempt to turn handle Pushing the Gree...

Page 26: ...rvoltage trip device The undervoltage trip device operates to trip the circuit breaker OFF unless 120VAC control power is present at the terminals of relay UV When the circuit breakers are shipped the undervoltage trip device is defeated by a factory installed plug Fig 28 If this plug is left in place the circuit breaker will operate normally without power applied to relay UV Removing this plug Fi...

Page 27: ...Closes Auxiliary Relay Closes Anti Pumping Circuit Completed Opening Signal Given Trip Coil Energized Circuit Breaker Opens Spring Status Indicator Changes to Yellow Standby for Close Operation Spring Status Indicator Changes to White and On Off Status Changes to ON Next Close Operation is Not Possible Unless Close Signal is Canceled On Off Status Indicator Changes to OFF Buy www ValinOnline com P...

Page 28: ...cts N C X Control Relay X a Control Relay Contact N O X b Control Relay Contact N C Y Auxiliary Relay Y b Auxiliary Relay Contact N C LS Limit Switch R Resistor D Diode C Capacitor RL Red Lamp GL Green Lamp Fig 32 Legend for Schematic 17 16 15 14 13 12 11 10 Green PR3 NT3 H A1 A2 B1 B2 C4 C04 K N2 A01 A02 B01 B02 9 8 7 6 5 4 3 2 1 Buy www ValinOnline com Phone 844 385 3099 Email CustomerService va...

Page 29: ...ntaminated insulators can allow a short circuit or ground fault to occur NOTE Refer to the SAFETY section of this manual for important information MAINTENANCE RECORD Keep a permanent record of all maintenance work At a minimum this record should include information on 1 Items inspected 2 Reports of any testing 3 Equipment condition 4 Corrective actions or adjustments 5 Date of work 6 Comments The ...

Page 30: ...ed The lubrication of sliding and rotating parts is checked and the mechanism is lubricated if needed Inspection Frequency Once every 1 3 years or every 3000 operations normal Once every 6 years detailed Refer to Table 2 for the schedule of Periodic Inspections D Unscheduled Inspection Inspections are implemented as required Inspection Frequency As needed NOTE The inspection frequency and points t...

Page 31: ...mooth operation Manual operation Visual inspection or touch Check lubrication Make sure moving parts operate smoothly Apply a small amount of lubrication Main Circuit Discoloration due to heat from conducting parts Visual inspection Make sure there is no discoloration Check the cause and repair Tighten connections to circuit breaker See Table 1 for tightening torques Loose bolts nuts or screws Tig...

Page 32: ...f the circuit fails to operate check the cause and repair Terminals loose or disconnected Visual inspection Tighten using a screwdriver Make sure terminals are not loose or disconnected Repair if disconnected Tighten if loose See Table 1 for tightening torques Insulation Resistance Measure ment Measure main circuit to ground Megger test at 1000V Resistance should be 500MΩ or greater Measure betwee...

Page 33: ...and normal contact spacing is extremely low and well below the maximum permitted by standards As an additional safety measure however it is recommended that all personnel keep at least 1 meter 3 3 ft away from the vacuum circuit breaker while this test is performed Radiation exposure hazard X rays may cause illness or injury Stay at least 1 meter 3 3 ft away from the circuit breaker during the vac...

Page 34: ...ficient vacuum level After the test is complete discharge any residual static charge from the primary terminals of the circuit breaker If a vacuum checker or AC hi pot tester is not available a DC hi potential test may be conducted If a DC test is conducted the test voltage must be increased to 31kV DC The test duration for DC tests and the criteria for acceptance remain the same as for AC tests D...

Page 35: ... 31 DISPOSAL Contact your state environmental agency for details on disposal of electrical components and packaging in your particular area Buy www ValinOnline com Phone 844 385 3099 Email CustomerService valin com ...

Page 36: ... upright position INSPECTION DURING STORAGE Routine scheduled inspection is necessary if storage is for an extended period The unit should be checked for condensation moisture corrosion and vermin Prior to installation the circuit breaker should be carefully examined for evidence of physical damage corrosion or other deterioration Refer to the PRE ENERGIZATION Section of this manual The MAINTENANC...

Page 37: ...ms 14 16 Rated Making Current kA Peak 31 5kA Rated Short Time Current 2 sec kA rms 12 5 Rated Interrupting Time 60Hz Basis cycles 3 Opening Time ms 20 Typical Closing Time ms 30 Charging Time sec 1 5 3 Rated Control Voltage Closing Charging V DC 125 Rated Control Voltage Opening V DC 30 125 Rated Control Voltage Undervoltage Trip V AC 120 Operating Duty O 1 min CO 3 min CO Auxiliary Contacts 2 N O...

Page 38: ...ERS AND USERS OF THE EQUIPMENT AND PARTS FOR BREACH OF THE FOREGOING WARRANTY THE COMPANY WILL HAVE NO OBLIGATIONS TO DISASSEMBLE ANY EQUIPMENT OR PART WHICH IS DEFECTIVE WITHIN THE TERMS OF THE ABOVE WARRANTY OR TO INSTALL ANY REPAIRED OR REPLACEMENT PART OR EQUIPMENT OR TO PAY ANY COSTS INCURRED IN CONNECTION WITH ANY SUCH DISASSEMBLY OR INSTALLATION THE COMPANY TOSHIBA CORPORATION AND THEIR SUP...