ABB OHB Installation, Service And Maintenance Download

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Outdoor SF6 Circuit Breaker - Type

OHB: Instruction for Storage,

Installation, Service and

Maintenance

Original Title:

ABB Breaker

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Sampath Kumar

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Outdoor SF6 Circuit

Breaker - T

ype OHB

Instruction for Storage, Installation, Service and

Maintenance

Summary of Contents for OHB

Page 1: ...th Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 Outdoor SF6 Circuit Outdoor SF6 Circuit Breaker T Breaker Type OHB ype OHB Instruction for Storage Installation Service and Instruction for Storage Installation Service and Maintenance Maintenance ...

Page 2: ...tion for Storage Installation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 ...

Page 3: ... Strictly follow the information given in Strictly follow the information given in this instruction manual this instruction manual Ensure compliance with legal Ensure compliance with legal of the site location as well as s of the site location as well as s work practices work practices Check that the rated performa Check that the rated performa the apparatus is not exceeded the apparatus is not ex...

Page 4: ...t it is also necessary Apart from this booklet it is also necessary to refer to to refer to the latest technical documentation the latest technical documentation available circuit diagrams wiring diagrams available circuit diagrams wiring diagrams assembly and installation drawings etc assembly and installation drawings etc especially with regard to any variations from especially with regard to an...

Page 5: ...parts 6 2 Safety indications 6 3 Circuit breaker closing and opening operations 7 Installation 7 1 General 7 2 Normal installation conditions 7 3 Preliminary operations 7 4 Preparing the fixing surface and circuit breaker fixing 7 5 Assembly for the telescopic structure 7 5 1 Details of structure parts 7 5 2 Assembly sequence 7 6 Assembly of the Poles with Duct assly on Cabinet 7 6 1 Unpacking of ...

Page 6: ... Breaker is dispatched from factory in three separate cases containing Duct Poles Cabinet with Operating Mechanism Drive third case contains Loose Structure with necessary hardware Also make sure that all the materials described in the shipping note are included in the supply Before carrying out any operation always make sure that the opera mechanism springs are discharged and that the apparatus i...

Page 7: ... storage is foreseen on request ABB can provide suitable packing for the specified storage conditions On receipt the apparatus must be carefully unpacked and checked as described in Checking on receipt chap 2 If immediate installation is not possible the apparatus must be packed again using the original packing material Insert hygroscopic substances inside the packing with at well ventilated dry d...

Page 8: ...Installation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 Lifting Fig 2 Lifting arrangement ...

Page 9: ...g contact all the control and operating circuits and the anti condensation heater are located inside the tight metal cabinet which also acts as the support for the poles and Duct The above mentioned structure is supported by a frame made of telescopic metal sections which provides the flexibility to adjust the height of the circuit breaker from 3090 to 3990 mm The Cabinet has IP 54 degree of prote...

Page 10: ...tion for Storage Installation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 ...

Page 11: ...Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 6 Instructions for circuit breaker operation 6 1 Operating and signaling parts Fig 4 Operating Mechanism Wiring Plate Legend 1 Terminal block of the operating and signaling circuits 2 Thermostat 3 Signaling lamps on request 6 Opening pushbutton 7 Closing pushbutton 8 Circuit breaker auxiliary cont 9 Signaling device for circuit br 1...

Page 12: ...eaker can be fitted with the following accessories for electrical operation If mechanical operations are to be carried out on the circuit breaker inside the installation area or with the protection nets removed pay great attention to the moving parts and to the medium voltage line If the operations are disabled do not force the mechanical interlocks instead check that the operation sequence is cor...

Page 13: ...ary operations Clean the insulating parts with clean dry cloth Check that the upper and lower terminals are clean and free of any deformation caused by shocks received during Correct installation is of prime importance for smooth operation of the product The instructions given by the manufacturer must be carefully studied and followed It is good practice to use gloves to handle the parts during in...

Page 14: ...tion for Storage Installation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 ...

Page 15: ...tion for Storage Installation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 ...

Page 16: ...tion for Storage Installation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 ...

Page 17: ...tion for Storage Installation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 ...

Page 18: ...al Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 7 5 Assembly of the telescopic structure 7 5 1 Details of Structure parts Fig 10 Details of structure with CT structure ...

Page 19: ...e Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 7 5 2 Assembly sequence Fig 11 Arragement without CT structure Fix the Lower Leg Assly as shown in Fig 11 Fix M20 Plain Washer Spring Washer Hex nut or Expansion Bolts in case the is with expansion Bolts Keep Nuts slightly loose for flexibility during entire assembly of structure Fix Lower Legs of CT Structure Assembly optio...

Page 20: ... Transform ABB 0 Fig 13 Circuit Breaker Structure Assembly Fig 14Pitch for adapting required Now fix Cross Support Angles 5 as shown in Fig Using M12 bolts spring washers plain washers Hex Nuts Slide Upper Leg Assembly 1 into Lower Leg Assembly to achieve height as per your requirement Structure can be adapted to three different heights in pitch of 150 mm Fix Support Angles 3 and M1 spring washers...

Page 21: ...aker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 Fig 15 Circuit breaker Structure Assembly with CTs Slide Upper Leg 7 in Lower Leg assembly assemble using M12 Fix Cross Angles 11 Fix CT Frame 10 on the ...

Page 22: ...tion Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 7 6 Assembly of Poles with Duct on Cabinet 7 6 1 Unpacking of Cabinet Fig 16 Cabinet Assembly on palate Remove top all side covers of casing containing Cabinet Assembly Do not remove the bottom pallet Keep this ready for furthur assembly ...

Page 23: ...Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 Remove these hardware only after holding the assembly by crane 7 6 1 Unpacking of Poles with Duct Assembly Fig 17 Unpacking of Poles with Duct Assembly Remove top all side covers of casing containing Poles with Duct Assembly Hold Poles with Duct Assembly by Free Poles with Duct Assembly b bolts as shown in Fig 17 Lift entire a...

Page 24: ...Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 7 6 2 Assembly of Poles with Duct Assembly on Cabinet Fig 18 Assembly of Poles with Duct Cabinet Assemble Poles with Duct Cabinet Now remove the bolts from the p ...

Page 25: ...y Slowly lower the Circuit Breaker in such a way that the Cabinet enters inside the Upper Leg Assemblies rests on the support angles the Duct rests on the Upper Leg Assmblies of structure Ensure Stiffener Plates are put inside the duct assemble the structure with duct using M12 bolts spring washers plain washers Hex Nuts Engage Cabinet with the supp Fix M12 bolts spring washers washers from bottom...

Page 26: ...tion for Storage Installation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 ...

Page 27: ...tion contact surfaces are perfectly flat and have no burrs oxidation traces or damages due to machining or handling Depending on the conductive material and surface treatment used carry out the operations indicated in the table on the contact surface of the conductor Bare Aluminium Bare Copper Clean with fine file or emery cloth Clean with a metallic brush or Fully tighten smear a film of natural ...

Page 28: ...or on the earthing point Be sure to clean degrease the area around the hole on completion of assembly cover the joint with Vaseline again 7 10 Auxiliary circuit connection Before opening the operating cover make sure that the circui open and the closing springs d The connection of the circuit br auxiliary circuits must be made terminal box mounted inside th mechanism box Outside the circuit breake...

Page 29: ...ervice and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 7 11 Overall Dimensions Fig 21Side View of the circuit Breaker ...

Page 30: ...tallation Service and Maintenance Original Title ABB Breaker Uploaded by Sampath Kumar Full description Save Embed Print RELATED TITLES 173 views 0 Share Power Transformers ABB Motor Starting Br ABB Protection Transform ABB 0 Fig 22 Front view of the circuit breaker ...

Page 31: ... circuit Auxiliary circuits The insulation resistance With a 500 V Megger measure the few Mohm and in any insulation resistance between the in time auxiliary circuits and the exposed conductive part Auxiliary Check that the connections to the The connections are acco Circuits control circuit are correct and the electric diagram enclosed supply voltage is correct circuit breaker Manually Carry out ...

Page 32: ... can be set and controlled remotely Local Open the circuit breaker manually The circuit breaker close remote Put the changeover switch on LOCAL normally selector SW 17 fig 4 Locally control the electric closing of the circuit breaker using the special pushbutton alternatively closing can be set and controlled remotely Key lock Open the circuit breaker Neither manual nor elec Turn the key and remov...

Page 33: ...t breaker must opening closing operations normally without stopping intermediate positions Visual inspection of the poles 1 Yr 5000 The insulating parts must insulating parts operations any accumulation of dust discharges or traces of surf discharges Visual inspection of the operating 1 Yr 5000 The elements must be free mechanism and transmission operations deformation Screws nuts bolts etc mu Mea...

Page 34: ...nit Opening spring 11 Indications for handling apparatus with SF6 SF6 in its pure state is an odourless colourless non toxic gas with a density about six times higher than air For this reason although it does not have any specific physiological effects it can produce the effects caused by lack of oxygen in ambience saturated with SF6 SF6 is practically nil sealed for li presence in the room is in ...

Page 35: ... Circuit breaker serial number Rated voltage of any electrical spare parts For availability and ordering of spare parts please contact our Service departmen 12 1 List of spare parts Replacement can only be carried out by trained personnel and or in our worksho Opening spring Closing spring Complete pole Basic operating mechanism Spring charging geared motor Operating mechanism auxiliary contacts A...

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ABB OHB, Installation, Service And Maintenance

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