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Содержание 3AF 01

Страница 1: ...s 3AF 01 Outdoor Vacuum Switchgear 36 kV Operating Instructions Manual 4P 0080 03 95273 001AB ...

Страница 2: ...nt release Y1 3AY1510 7 4 3 3 Shunt release Y3 3AY1510 optional feature 7 4 3 4 Shunt release Y2 3AX1101 optional feature 7 4 3 5 Undervoltage release Y7 3AX1103 optional feature 8 4 3 6 C T Operated release Y4 3AX1102 8 4 4 Auxiliary switch S1 3SV92 8 4 5 Mechanical interlocking 8 Page Nos Qualified personnel For the purpose of these operating instructions and warning notices a qualified person i...

Страница 3: ...kers comply with the provisions of IEC 62271 100 IEC 60694 and IS13118 Refer Table1 for Technical Data NOTE In their basic design and with all standard listed equipment options 3AF 01 vacuum circuit breakers are type tested components in accordance with IEC If the customer intends to fit the breakers with additional functions we recommend that he should first consult us as in most cases proven and...

Страница 4: ...e instant when the arcing contacts separate in all poles in the subsequent opening process Dead time The interval of time between final arc extinction in all poles in the opening operation and the first re establishment of current in any pole in the subsequent closing operation Closing time the interval of time between the initiation of the closing release and the instant when the contacts touch i...

Страница 5: ...s given in Fig 5 are valid up to an installation altitude of 1000m above mean sea level As from an altitude of 1000m the insulation level must be corrected as shown in Fig 4 2 3 Influence of environmental parameters 2 3 1 Permissible ambient conditions The 3AF 01 vacuum circuit breakers are designed for the normal operating conditions laid down in the standards Permissible ambient temperatures Max...

Страница 6: ...ewed When the permissible maximum has been attained the complete pole assemblies must be renewed Detailed instructions are supplied with the replacement pole assemblies When ordering replacement pole assemblies state the circuit breaker type design code and serial number see name plate 2 5 Fixing termination dimensions and weights The dimensions of the vacuum circuit breaker are shown in the relev...

Страница 7: ...nt to be interrupted initiates a metal vapour arc discharge and flows through this plasma until the next current zero The arc is then extinguished and the conductive metal vapour condenses on the metal surfaces within a matter of microseconds As a result the dielectric strength in the break builds up very rapidly The contacts are designed so that the self generated field causes the arc to travel T...

Страница 8: ...assembly base frame and operating mechanism Fig 8 Mounting of operating mechanism on steel structure 1 Moving contact 2 Guide 3 Metal bellows 4 Fixed contact 5 Insulator 6 Arc chamber Fig 9 Section through a vacuum interrupter 17 Vacuum interrupter 18 Insulator 19 Contact pressure spring 20 Drive shaft 23 Bearing 24 Operating mechanism 27 Bottom Switching Rod 30 NRV optional feature 1 2 3 4 5 6 7 ...

Страница 9: ... is 900 VA approx During part of the short spring charging time the motors operate in the overload range The supply voltage of the motor operated mechanism may deviate from the rated value by 15 to 10 4 3 Shunt releases 4 3 1 Shunt closing release Y9 3AY1510 P 4 Fig 11 The closing solenoid unlatches the charged closing spring and thus closes the circuit breaker electrically It is available for bot...

Страница 10: ... unlatching device of the stored energy mechanism is released and opening of the circuit breaker is thus initiated In addition to the primary current transformers matching transformers are also required to enable use of the CT operated releases Power consumption for releases with 0 5 A rated tripping current 6 VA at 90 of the release rated current and with open armature 4 4 Auxiliary switch S1 3SV...

Страница 11: ...ort It is recommended that the breakers be transported to the site in their original packing Care must be taken to see that the packing unit is not damaged The packing units must be stored so as to prevent shifting tipping or falling down under normal transport conditions and to provide protection against abrupt braking centrifugal forces jolts from shunting as well as rolling and pitching at sea ...

Страница 12: ... the packing case 2 Put slings on the marked portion on the packing case 3 Do NOT topple or tumble the packing case 6 3 Storage and Handling It is recommended that the equipment after removal from the packing case be stored in a clean sheltered area Care should be taken against the ingress of water in the packages For long time storage ensure that the space heater is switched ON Refer Fig 8 for th...

Страница 13: ...tective conductors to the earthing terminals provided Connect the auxiliary supply as per the approved schematic wiring diagram CAUTION When the supply voltage is applied the motor immediately charges the closing spring iii Cleaning WARNING For safety reasons cleaning may be taken up only when the vacuum circuit breaker is in the open state closing spring discharged Non observance can result in pe...

Страница 14: ...dition at the end of the slow closing operation a Insert the manual handle in the same position b Move the handle down still further c Keeping the handle pressed down press the OFF P B P 6 Fig 11 and gradually release the pressure on the handle allowing the shaft to rotate The movement ends with the indicator showing O symbol for CB Off Safety Precautions Always keep downward pressure on the handl...

Страница 15: ...y is applied all the heaters are ON NOTE Keep door and all covers closed firmly to prevent entry of dust moisture insects etc 10 Sheet steel frame 11 Shock absorber 12 Closing spring 13 Tripping spring 14 Auxiliary switch 15 Opening for hand crank 16 Operation counter 17 Drive shaft 18 Pin 19 Damping plates 20 Additional releases optional 21 Snap switch 22 Rating plate 23 Tie rod for aux switch 1 ...

Страница 16: ...and battery D C voltages regularly to ensure proper ratings to operate breaker electrically It is recommended nonetheless a regular visual inspection for soiling e g dust saline fog fungus etc of the circuit breaker The periodicity of insulator washing is to be determined by the site personnel based on the amount of pollutions deposited 8 3 Typical Maintenances Sequences 1 Put the circuit breaker ...

Страница 17: ...ter if the switching rod is pulled down it will not move back on its own This indicates that the vacuum interrupter has to be replaced 8 7 Cleaning DANGER Non observance can result in death or serious personal injury Terminals must not be touched if the power supply is connected DANGER Non observance can result in personal injury All springs of the operating mechanism must be discharged and the va...

Страница 18: ...ame as closing release 24V DC 3TH30220BB4 30V DC 3TH30220BC4 110V DC 3TH30220BF4 220V DC 3TH30220BM4 9 S21 S22 S3 S4 Position switch 3SE 4206 4107766996 10 Vacuum Interrupter D21 Type VS36025 3AY1716 1A 4398107002 11 Y2 2nd Shunt Release a 24V 32V DC 3AX1101 2B 4110660052 b 48V 60V DC 3AX1101 2C 4110660063 c 110V 127V DC 3AX1101 2E 4110660054 d 220V DC 3AX1101 2F 4110660055 e 110V AC 50Hz 3AX1101 ...

Страница 19: ...able auxiliary supply to be connected to these equipments in the substation During service life of the breaker 4 Keep door covers firmly closed to prevent entry of dust moisture insects etc 5 Ensure spring charging handle manual handle are kept in the mechanism housing 6 Decide maintenance schedule based upon a no of short circuit operations b frequency of breaker ON OFF operations c pollution lev...

Страница 20: ...re of 6 Check contact authorised operating mechanism service centres 3 Closing release operates Mechanical failure of operating Check contact authorised service sound of breaker closing mechanism centres is heard but breaker contacts do not close Nuisance 1 Electrical problem 1 Closing command continues 1 Check correct logic circuits or false on terminal X3 3 X3 4 closing of 2 Terminal A2 of closi...

Страница 21: ... and components and thus in our technology as a whole We attach great importance to personal safety system reliability availability and service Your suggestions enable us to keep on improving our products Please do not hesitate to contact us You can find your contact at the Siemens Regional Offices in your area and other Siemens addreses via the internet under http www siemens com Call our Custome...

Страница 22: ...20 Notes ...

Страница 23: ...21 Notes ...

Страница 24: ...r Road Thane 400 601 India Tel 91 22 2762 3544 Fax 91 22 2762 3715 Order No 4P 0080 03 95273 001AB Product development is a continuous process Consequently the data indicated in this Booklet is subject to change without prior notice For the latest information please contact our Sales Offices 2010 Siemens Ltd All rights reserved Printed in India ...

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