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Installation

Preparation for installation

Prior to installation of the type SDV6
distribution circuit breaker, careful design,
planning and construction of the
foundation or base on which the circuit
breaker will rest must be made. A
thorough analysis and careful construction
may alleviate many problems at the time
of installation, and during operation. It is
important that a relatively level surface be
provided capable of supporting the weight
of the type SDV6 distribution circuit
breaker, and 0.75 inch diameter anchor
bolts are not recommended.

Figure 4: Anchoring type SDV6 distribution
circuit breaker on page 14 illustrates
typical locations for anchor bolts. No
special leveling procedures are required.

Prior to installation of a type SDV6
distribution circuit breaker, study this
instruction book and the circuit breaker
drawings, such as outline, current
transformer diagram, elementary diagram,
connection diagram, protective relay
diagram and electrical bill of material and
nameplate engraving. Special attention
should be given to the foundation
information contained in this instruction
manual as well as the information
provided on the equipment drawings.
Verify the foundation conforms to the
requirements described in this instruction
manual and the outline drawing.

The type SDV6 distribution circuit breaker
is shipped with the legs attached. The legs
must be set to the desired height.
Directions are given in the notice decal.

Location

The circuit breaker should be located so
that it is readily accessible for manual
operation and inspection. Ample clearance
should be provided for doors and panels to
swing open, or to be removed for servicing
the circuit breaker.

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Содержание SDV6

Страница 1: ...Answers for energy Type SDV6 distribution circuit breaker 15 5 kV 27 6 kV and 38 kV instruction manual Installation operation maintenance E50001 F710 A250 X 4A00 ...

Страница 2: ...fied person shall also be familiar with the proper use of special precautionary techniques personal protective equipment insulating and shielding materials and insulated tools and test equipment Such persons are permitted to work within limited approach of exposed live parts operating at 50 volts or more and shall at a minimum be additionally trained in all of the following The skills and techniqu...

Страница 3: ... installation operation or maintenance Should further information be desired or should particular problems arise that are not covered sufficiently for the purchaser s purposes the matter should be referred to the local sales office The contents of this instruction manual shall not become part of or modify any prior or existing agreement commitment or relationship The sales contract contains the en...

Страница 4: ...injury or property damage Always de energize and ground the equipment before maintenance Read and understand this instruction manual before using equipment Maintenance should be performed only by qualified personnel The use of unauthorized parts in the repair of the equipment or tampering by unqualified personnel will result in dangerous conditions which will cause death severe injury or equipment...

Страница 5: ...lt in minor or moderate injury Caution without safety alert symbol Indicates a potentially hazardous situation which if not avoided may result in property damage Field service operation and warranty issues Siemens can provide competent well trained field service representatives to provide technical guidance and advisory assistance for the installation overhaul repair and maintenance of Siemens equ...

Страница 6: ...ld be avoided However these instructions are not intended to cover all details of variations that may be encountered in connection with the installation operation and maintenance of this equipment Should additional information be desired including replacement instruction manuals contact your local Siemens representative Scope These instructions cover the installation operation and maintenance of a...

Страница 7: ...struction manual E50001 F710 A251 X 76US for instructions applicable to the type 3AH circuit breaker operator General description The distribution circuit breaker described in this instruction manual is of the ac high voltage outdoor circuit breaker type as defined in ANSI IEEE C37 and NEMA SG4 standards All high voltage parts excluding roof bushings are completely enclosed within grounded barrier...

Страница 8: ...tact the carrier immediately Notify Siemens medium voltage customer service at 1 800 347 6659 1 919 365 2200 outside the U S of any shortage or damage Shipping damage claims Important The manner in which visible shipping damage is identified by consignee prior to signing the delivery receipt can determine the outcome of any damage claim to be filed Notification to carrier within 15 days for concea...

Страница 9: ...ection report and forward it along with a copy of the noted delivery receipt to Siemens at 1 800 347 6659 or 1 919 365 2200 outside the U S Approval must be obtained by Siemens from the carrier before any repair work can be performed Before approval can be obtained Siemens must have the above referenced documents The carrier inspection report and or driver s signature on the delivery receipt does ...

Страница 10: ... other methods must be used Forklift trucks may be used prior to removal of wooden skids Verify the forklift blades pass completely under the circuit breaker Each type SDV6 distribution circuit breaker has provisions for attaching lifting cables Lifting lugs are provided on two sides of the circuit breaker which are designed for use with a lift sling or hooks of the proper size and a crane of adeq...

Страница 11: ...ront or rear Storage When it is necessary to store a type SDV6 distribution circuit breaker in an area exposed to the weather or under humid conditions energize the space heaters provided and make certain that any vents are uncovered to allow air to circulate If at all possible install the type SDV6 distribution circuit breaker at the permanent location even though it may be some time before the e...

Страница 12: ...pe SDV6 distribution circuit breaker study this instruction book and the circuit breaker drawings such as outline current transformer diagram elementary diagram connection diagram protective relay diagram and electrical bill of material and nameplate engraving Special attention should be given to the foundation information contained in this instruction manual as well as the information provided on...

Страница 13: ...0 H 28 9 734 28 9 734 28 9 734 44 9 1 141 I 5 5 5 20 J 10 10 10 10 K 5 2 132 5 2 132 5 2 132 7 5 191 L 28 8 732 28 8 732 28 8 732 31 1 790 M 3 5 90 3 5 90 3 5 90 3 5 90 N 28 5 725 28 5 725 28 5 725 3 7 95 O 5 7 145 5 7 145 5 7 145 5 7 145 P 48 2 1 224 48 2 1 224 48 2 1 224 61 4 1 560 Q 9 7 247 9 7 247 9 7 247 9 2 236 R 15 6 397 15 4 391 15 4 391 24 5 622 S 104 0 2 641 104 0 2 641 104 0 2 641 114 7...

Страница 14: ... 10 8 274 12 2 309 12 2 309 17 9 454 G 13 0 330 15 7 400 15 7 400 19 7 500 H 28 9 734 28 9 734 28 9 734 44 9 1 141 I 15 6 397 15 4 391 15 4 391 24 5 622 J 1 8 45 1 8 45 1 8 45 3 8 97 K 14 5 368 14 5 368 14 5 368 1 9 47 L 3 5 90 3 5 90 3 5 90 7 180 M 20 5 520 20 5 520 20 5 520 25 7 654 N 11 5 291 11 5 291 11 5 291 15 7 400 O 26 4 670 34 9 888 34 9 888 34 9 888 P 31 5 800 39 7 1 009 39 7 1 009 39 7 ...

Страница 15: ...d from the conduit panel opening in the low voltage compartment to the current transformer circuit terminal blocks Consult the connection diagrams for the location of connection terminal points for each circuit Connection diagrams are provided with each type SDV6 distribution circuit breaker and will be found in the pocket inside the operator compartment door Primary lead connections The primary l...

Страница 16: ... Phase barriers Phase barriers are provided on all 27 6 kV and 38 0 kV class type SDV6 distribution circuit breakers as shown in Type SDV6 distribution circuit breaker with interphase barriers and bushing current transformers installed in primary compartment on page 17 These plates of insulating material are attached to the circuit breaker housing and provide suitable electrical insulation between...

Страница 17: ...ase barriers and bushing current transformers installed in primary compartment Load side 2 4 6 Load side 1 3 5 Insulation plates apply only in 27 6 kV and 38 0 kV Operator compartment Low voltage compartment High voltage compartment Bushing current transformer one per bushing shown 17 ...

Страница 18: ...e barriers and bushing current transformers installed in primary compartment on page 17 shows a knife switch with fuses Opening the knife switch de energizes control power to the circuit breaker In some circuit breakers pullout type fuse holders or molded case circuit breakers are used in lieu of knife switches Removal of the fuse holder or opening the molded case circuit breaker accomplishes the ...

Страница 19: ...ption A Opening for manual charging B Operator compartment C Manual close pushbutton D Manual open pushbutton E Low voltage compartment F CHARGED DISCHARGED indicator G OPEN CLOSE indicator H Operations counter I Control disconnect device A B C D E F G H I 19 ...

Страница 20: ...l for your circuit breaker to determine the voltage required and where the control voltage signal should be applied When control power is connected to the circuit breaker the closing springs should automatically charge if the control power disconnect refer to Figure 6 Low voltage compartment on page 19 is closed The automatic spring charging features of the circuit breaker must be checked Control ...

Страница 21: ... external devices as shown on wiring diagrams removed 8 Ground connections properly made 9 Incoming primary and secondary connections properly made and checked for shorts or undesired grounds 10 Verify all covers and bolted connectors are securely fastened 11 Protective relays coordinated with other protective relays and protection devices on the system Refer to protective relay instructions befor...

Страница 22: ...rom a circuit breaker under test All normal metallic doors and panels must be installed during tests Note No hazardous X radiation is produced with closed contacts or with open contacts with rated operating voltage applied Excessive test voltages May result in damage to equipment Do not perform dielectric tests at test voltages exceeding the ratings of the tested equipment 1 An insulation resistan...

Страница 23: ...me or has accumulated a large amount of dust moisture or other contaminants without being first restored to good condition Rated maximum voltage Rated power frequency withstand Field test voltage kV rms kV rms kV rms kV dc 15 5 50 37 5 53 27 6 60 45 64 38 0 80 60 85 Table 2 High potential test voltages A dielectric test on secondary and control circuits should be made for one minute at 1 125 volts...

Страница 24: ...e bolts that secure the roof bushings to the top plate of the type SDV6 distribution circuit breaker Torque should be in the range of 20 25 ft lbs 27 34 Nm 3 Connect primary incoming power source to circuit breaker 4 Check all instruments protective relays meters etc 5 Connect as small a load as possible and observe instruments 6 Gradually connect more load to the equipment while observing instrum...

Страница 25: ... the maintenance and lubrication interval Siemens recommends that circuit breakers should be inspected and exercised annually Hazardous voltages and high speed moving parts Will cause death serious injury or property damage Read instruction manuals observe safety instructions and use qualified personnel Regardless of the length of the maintenance and lubrication interval Siemens recommends the cir...

Страница 26: ... and in the vacuum interrupter operator module SAE U S customary fasteners are used in most other locations This list of hand tools describes those normally used in disassembly and re assembly procedures Open end or box end wrenches 3 8 9 16 and 3 4 inches Socket wrenches 3 8 9 16 and 3 4 inches Ratchet Two extensions 6 maximum Torque wrench 0 150 ft lbs Miscellaneous Screw drivers 26 ...

Страница 27: ...ts Table 3 Maintenance tasks Recommended maintenance and lubrication Periodic maintenance and lubrication should include all the tasks shown in Table 3 Maintenance tasks on page 27 Recommended procedures for each of the listed tasks are provided in this section of the instruction manual or in the maintenance section of the type 3AH distribution circuit breaker operator instruction manual E50001 F7...

Страница 28: ... parts De energize the control power to the circuit breaker Review Figure 6 Low voltage compartment on page 19 If the circuit breaker includes the optional capacitor trip unit the capacitor must be discharged by grounding its terminals Perform the spring discharge check 1 De energize control power 2 Press red open button on the operating mechanism 3 Press black close button on the operating mechan...

Страница 29: ...ngs All of these components must be cleaned and free of dirt or any foreign objects Use a dry lint free cloth For stubborn dirt use a clean cloth saturated with denatured alcohol Also inspect the buswork for any evidence of loose bolts bushings for any evidence of damage and flexible connectors for tightness and absence of mechanical damage burning or pitting Checks of the stored energy operator m...

Страница 30: ... the vacuum interrupter These include the standoff insulators and the insulated drive links as well as the insulating tension struts between the vacuum interrupter polehead supports If these insulation components are contaminated or defective the test voltage will not be sustained If so clean or replace the affected components and retest If dc high potential tests are used note the following If a ...

Страница 31: ...60 Hz z 750 volts 60 Hz on pins A1 and D16 for motor circuit Maintain test voltage for one minute 8 If no disruptive discharge occurs the secondary control insulation level is satisfactory 9 Disconnect the shorting wire and reattach the leads to the spring charging motor 10 Perform contact resistance tests of the primary contacts using a micro ohmmeter Contact resistance should not exceed the valu...

Страница 32: ...istribution circuit breaker back in service Protective relays and instruments The type SDV6 distribution circuit breaker can be equipped with a protective relay panel when required A protective relay package can be supplied on a hinged panel mounted in the front of the low voltage compartment To ensure satisfactory operation of protective relays and instruments do not leave device covers off longe...

Страница 33: ...s are more severe overhaul periods should occur more frequently The operations counter on the front panel of the circuit breaker records the number of operations For overhaul information and instructions refer to the instruction manual for the type 3AH distribution circuit breaker operator E50001 F710 A251 X 76US Hazardous voltages and high speed moving parts Can cause death serious injury or prop...

Страница 34: ...osing and manual tripping Lubrication 1 Evidence of excessive wear 2 Lubricaion of wear points Electrical controls Wiring 1 Mechanical damage or abrasion Terminals and connectors 1 Tightness and absence of mechanical damage Close and trip solenoids anti pump relay and auxiliary switches 1 Automatic charging 2 Close and trip with control power High potential test Primary circuit to ground and betwe...

Страница 35: ...ergize No sound of circuit breaker closing 1 Secondary control circuit de energized or control circuit fuses blown Correct as indicated 2 No closing signal to XOA2 Check for continuity and correct protective relay logic 3 Failure of anti pump relay 52Y contacts 21 to 22 31 to 32 or 13 to 14 Check and replace as required 4 Failure of close coil solenoid 52SRC Check and replace as required 5 Auxilia...

Страница 36: ...ace if required 5 Failure of trip coil 52T Check and replace if necessary 6 Auxiliary switch NO contacts 23 to 24 or 33 to 34 are open when circuit breaker is closed Check linkage and switch Replace or adjust as necessary Tripping coil 52T energizes No tripping sound is heard and circuit breaker contacts do not open In other words they remain closed 1 Failure of tripping spring or its mechanical l...

Страница 37: ...uired While the circuit breaker can be identified by the serial number alone all additional information that is given will serve as a check to be certain that the part or parts furnished are correct for the circuit breaker in question Without this serial number Siemens cannot be sure of the correct identity of the desired parts If any doubt exists as to the instruction book reference number or the...

Страница 38: ...71 7 59 2 65 38 0 31 5 38 0 200 258 80 31 5 83 5 1 200 2 000 71 7 59 2 82 38 0 40 38 0 200 258 80 40 83 5 1 200 2 000 71 7 59 2 104 Nominal Range Close coil Trip coil4 Spring charging motor Close Trip A A Amperes run avg Charging seconds 48 Vdc 36 56 28 56 11 4 30 11 4 8 10 125 Vdc 90 140 70 140 2 1 7 4 4 8 4 10 250 Vdc 180 280 140 280 2 1 9 6 4 2 2 10 120 Vac 104 127 104 127 2 0 6 10 240 Vac 208 ...

Страница 39: ...15 5 kV 20 25 kA 2 314 1 050 2 425 1 100 15 5 kV 31 5 40 kA 2 314 1 050 2 425 1 100 27 6 kV 20 25 kA 2 535 1 150 2 645 1 200 2 645 1 200 38 0 kV 20 25 kA 3 310 1 500 3 417 1 550 38 0 kV 31 5 40 kA 3 432 1 560 3 542 1 610 Table 12 Type SDV6 distribution circuit breaker weight in lbs kg Location Heater wattage High voltage compartment 15 5 kV and 27 6 kV 38 0 kV 1 0001 1 5001 Low voltage compartment...

Страница 40: ...40 to 40 30 to 40 40 to 40 Operating mechanism Stored energy Stored energy Stored energy Closing time ms 80 80 80 Opening time by interrupting time five cycle standard ms 42 42 42 Dual trip coils mechanically and electrically independent Optional Optional Optional Emergency manual trip externally operable Standard Standard Standard Auxiliary voltages options Close trip and protection Space heaters...

Страница 41: ...04 103 63 XO D13 XO 64 66 65 52a and 52b spare contacts optional Figure 9 Typical control schematic Legend 01 C Control switch close remote 01 T Control switch trip remote 08 Close and trip power disconnect 08M Motor power disconnect 52a Auxiliary switch open when circuit breaker is open 52b Auxiliary switch closed when circuit breaker is closed 52SRC Closing spring release coil 52T Opening spring...

Страница 42: ...Appendix Table 15 Remarks 42 ...

Страница 43: ...Appendix Table 15 Remarks continued 43 ...

Страница 44: ...E50001 F710 A250 X 4A00 Replaces No E50001 U229 A268 X US00 Printed in USA All rights reserved Trademarks mentioned in this document are the property of Siemens AG its affiliates or their respective owners Subject to change without prior notice The information in this document contains general descriptions of the technical options available which may not apply in all cases The required technical o...

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