US1843286A - Switch-house - Google Patents

Description

G. JANSSON SWITCH HOUSE Filed Nov. 3, 1924 Feb. 2, 1932.

Patented Feb. 2, 1932 GUSTAV JANSSON, OF,WOLLAS.TON, ,MASSACI-HISETTS,ASSEGNOR, ,BY MESNE ASSIGN'- 1\IENTSTO CONDIT ELECTRICAL MAHUFACTUPNG CORPORATION, OF BOS'EON, MASS'A CHUSETTS, A CORPORATION OF MASSACHUSETTS` SWITUH HOUSE Application filed November-3, 1924. Serial No. 741693;

This invention relates to power-generating and distributingi systems and particularlyto: z

control-Stations swtch-houses, in saicl eye tems and the: apparats therein eontaineda Because of 'the relativelylarge amountsot:

power generated:anl traneinitted,.and be'- cause a z'ault in one part ot a 'transnission and :distribution system tends r to Spread by unsuspooted v Channels` to other* parte: of the system:: it h as: become. the growing ipractice to isolate the various crcuts and apparatus of thesysten from each other by interposingpinsulating :barriers between :the variouscircu-it'leads` and wpparatus, as, for inetanee &by enclosing: the apparatus in -closed rooms` having :insulating;enclosing walls;

This method',` however; does not protect the system from trouble oaused bjth@ overloadrupts its circuit und-er a heavy -overload hi ghly heated gases,- oreven fiam'e 'and burning oil may be thrown out' of' the vswitch wcasin'gt anal about the exposedeircuitleads.` The heatecl gasesare conducting and .n'ayform cond ucti ne: path' :between the switch' termi.- nals-and tli'ereby'cause afiash-over which can"- not be controlled by the switch; and danage may ensue- Furthernore' a 'high pressure -maybe created' within the switch at the mo ment: ot circit-interruption under: heavy' load, and thereceptacle may be blown away tronrits po 1011 about `'switchmembers; or'. the '0111311113 both' cases burning .oil may be liberatecl into theroom and the "flames and heated gases may cause current to flw along undesired'eh'em nelsand thereby cause trouble in the systen1.=

An oloj ect of this invention is the provieion of a switch-house. so construetecl'ancl ar rangecl that ;not r only. are the eleotrical cir cuts v and the current-conducting Components off the:apparatus isolated froni each* other,-*but the apparatns is isolated from: the:

current-conductors and; especially, the cas ngs ofcthe-oil-immersed electrie switches areisolated from theirzexposed electric termin'alsl In isolating s the-- switch casing from: its

-interrupting aro may i burn :hole throu h the wall otthe'receotacle. In o L ex lose l termieals l i roviclea -Construction and zu'1'angenent whereby an attendant .may

ha ve free; -'work-ing;roonr :about -the trrminals:` and also about the casngior rasingsancl.

loweringsit to and froni enclosing-postion about the `contact members and for= other' purposes; and 'this constitutes* a further obj ect otthe in ventona A-turther ohj'eetisgenerally to' nprove the Construction and operation of eleetriodis trbuton Systems anclpparatus* aecessory thereto.

The ignrexis 'a: Sectional elevationg more or:

less cliagrarnniatic ot a suiic ient pm't-ion of ar.

switch house*to'illustrate the nvention.

invention, the switch houseconp'ses an up:- per 'iso latii g ;room :10': and: alower isolting roon 12 and a wall structure l lzwhich isrcommon to both roons and dsoiates one *froni :the other. Said Wall structurecomprises thefi'oor. of the upper reonand the ceiling :ofthe low-' er room. Thevertical 'walls l'ancl lSmay be above the-frame,--where they are arrange d for:

connection with circuit leads 30 and 32.-

S'aicl switch is eommon' to both superinposecl roomsr 10 and. 12 and is' extendedthrougln and fllSPDSGCl u in an' opening; 34 in the wall structure 14.

An: apertured supportingplate g preferably in'the 'for-m ef 'anannular ring', surround e sad opening; preferably completely and is Secured in such position to the'wall structure' by suitable means as bolts 38. The switch cover 26 is disposed on said plate, over its aperture, and may be secured removably thereto by bolts 4:0 which pass through an annular outstanding flange 4:2 of said cover. lVith this Construction, the switch cover also forms a cover for the opening in the wall structure. Preferably the connection between said cover and said plate, and between said plate and said wall structure, is approximately gas tight so that hot gases or vapors, or combustible fumes, will not flow in any detrimental amount from the lower room 12 into the upper room 10.

Means are disposed in said lower room to raise said oil receptacle into position under said cover and also lower it to the floor of said lower room, for inspection of the switch contacts and for other purposes. Said raising and lowering means may comprise a windlass 46 secured to a wall 18 of the lower room and having fiexible cables 48, one of which is here shown, disposed on opposite sides of the oil receptacle and eXtended from fixed attaching means 50 adjacent said oil receptacle to the windlass and passing over pulleys 52 carried by 'the oil receptacle and pulleys 54 supported by the walls of the room. The raising and lowering means may also serve to support the receptacle removably in position bencath its cover and about the currentconducting Components of the switch.

Preferably a track is disposed on the floor 22 of the lower room beneath the opening '34 in the wall-structure, or floor 14, of the upper room. Said receptacle may be lo\ ered onto a truck 62 disposed on said track and having wheels 64 which engage the track, whereby the receptacle may be moved conveniently out of said room for repair and the like.

-Preferably said lower room is vented 'to the atmosphere by suitable means as the opening 66 in the side wall 16; and the venting may be assisted by draft created in any suitable manner, as by the fan 68, which tan may be continuously operated.

With the Construction shown, oil gases and vapors, and liquid oil are confined to the lower room 16 and cannot come in contact `working space for'an attendant and isolated from each other by a horizontal wall structure comprising the floor of the upper room and the ceiling of the lower room, an oil immersed electric switch having its oil receptacle disposed mainly in said lower room and its switch terminals and cover disposed mainly in said upper room, said rooms also having means whereby they are sealed from deleterious gaseous intercommunication.

2. A two-story switch house having upper and lower stories providing two vertically disposed rooms arranged to provide free Working space for an attendant and isolated from each other by a horizontal wall structure comprising the floor of the upper room and the ceilingof the lower room, and an oil immersed electric switch having a cover supported by said wall structure in the upper room, and switch terminals eXteIded outwardly from said cover, and an oil receptaclc disposed beneath said cover and extended through an opening in said wall structure and disposed mainly in said lower room, said rooms also having means whereby they are sealed from deleterious gaseous intercommunication.

3. A switch house having upper and lower stories providing two vertically disposed rooms arranged to provide free working space 'or an atte ndant and isolated trom each other by a horizontal wall structure comprising the floor of the upper room and the ceiling of the lower room, said wall structure having an opening, a cover disposed in said upper room over said opening and constituting a closure therefor, electric terminals extended above said cover into said upper room, and an oil receptacle disposed in said lower room and having its upper portion disposed in said opening and under said cover, said rooms also having means whereby they are sealed from deleterious gaseous inter-communication.

4. A switch house having upper and lower stories providing two vertically disposed rooms arranged to provide free working space for an attendant and isolated from each other by a horizontal wall structure comprising the floor of the upper room and the ceiling of the lower room, said wall structure having an opening, a cover disposed in said upper room over said opening and constituting a closure therefor, electric terminals extended above said cover into said upper room, an open top casing disposed in said lower room and having its upper portion rcceived in said opening and its open top closed by said cover, and an electrical apparatus contained in said casing and connected with said electric terminals, said rooms also having means whereby they are sealed from deleterious gaseous intercommunication.

5. A switch house having isolated upper and lower stories providingtwo vertically disposedroomsarrangedtoprovidefreework- 1,&3389) ing space fer an attendant, a terminal-supporting coVer-frame disposed upon the floor of the upper room, an oil receptacle disposed in the lower room under said frame and spaced above the floor of said lower room, and means contained in said lower room to raise and lower said receptacle to and from the aforesaid relation and to and from th floor of said lower room, said rooms also having means whereby'they are sealed from deleterious gaseous intercommunication.

6. A switch house havin-g upper and lower stories providing two vertieally disposed ro-oms arranged to provide free working space for an attendant and isolated from each other by a horizontal wall structure comprising the floor of the upper room and the ceiling of the lower room, a casing` comprising a cover disposed in said upper room over an opening in said wall structure, electric terminals earried by said casing and contained in said upper room, and an open-top receptacle disposed in said lower room and under said cover and means contained in said lower room arranged to support said receptacle removably in the aforesaid relation, said rooms also having means Whereby they are sealed from deleterious gaseous intercomnuniication.

7. A switch house having upper and lower stories providing two vertically disposed reoms arrange'd to provide free working space for an attendant and isolated from each other by a horizontal wall structure comprising the floor of the upper room and the ceiling of the lower room, a casing comprising a cover disposed in said upper room over an opening in said wall structure, electric terminals earried by said casing and contained in said upper room, and an open-top receptacle disposed in said lower room and under said cover, and raising and lower-ing means for said rece-ptaele contained in said lower room, said r-ooms also having means whereby they are sealed from deleterious gaseous intercommunication.

i 8. A switch house having upper and lower stories providing two vertically disposed rooms arranged to provide :free working space for an attendant and iselated from each other by a horizontal wall structure comprising the floor of the upper room and the ceiling of the lower room and having an opening therethrough, and a switch casing received in said opening having its frame supported by said wall structure and its electrie terminals contained in said upper room, and its oil receptacle eXtended through said opening 'and contained mainly in said lower room, said rooms also having means whereby they are sealed from deleterous gaseous intercommunication.

9. A switch house having upper and lower stories providing two vertically dsposed rooms arranged to provide free workng space foran attendantand isolated from each other by ahorizontah wall; structure comprising the 'floor: of the -upper room and the v ceiling ot the 'lowerroom and having an opening therethrough a supporting plate disposed :in said 'upperroom :and Secured ;to said` wall structure about: said opening,` and an eleetri-c switch received lIl i said opening and common-;to 'both rooms, said switch having a casin-gcomprising ;upper and lower separable ionbers tl e upper: member bengeisposed upon zsaidplate and havng swtch terminals contained in said upper room, and said lower er stories providing two vertically disposed roems arranged to provide free workng space oran attendant and iso-lated from each other by a horizontal wall structure comprisingthe fioor of the upper room and the ceilingof the lower room, and havingan openin therethrough, a supporting plate disposed in said upper room and secured to said wall structure aboutsaidopening, and an electric switch received in ;said opening,- and common tobothroons, said switch having-a easing eomprisingupper and lower separable meinbers, theupper member being disposed upon said plate and having switchterminals centained in said upper room and said lower member disposed beneath said upper member and containedmainly in said lower room and means to raise and lower-said lower memberin said lower room to and-froni the aforosaid relation, .said rooms also having means whereby they are sealed from (lele'terious gaseous inter-communication.

11. Aswitch house havingupper and lov*- er stories pro iding two vertically disposed rooms arranged to provide free working space foran attendant and isolated from each other by ahorizontal wall structure comprising the floor of the upper room and the ceiling of the lower room said horizontal wall structure having an opening therethrough, an oil switch casing disposed in said lower room under said opening, a swi ch frame disposed in said upper room over said opening and constituting a sealing cover therefor whereby to prevent the passage of gases from said lower room and switch casing into said up per room and svitch members carried by said switch frame having their lo-wer ends iminersed in the oil in said casing and their eX- posed terminals in said upper room.

12. A switch house having upper and lower stories providing two Vertically disposed rooms arranged to provide free working space for an attendant and isolated from each other by a horizontal wall structure comprising the floor of the upper room and the ceiling of the &Il

lower room, said horizontal wall structure having an opening ther'ethrough, an 011 switch casing chsposed 111 said lower room under said opening, means in said lower room i arranged to support said casing 'eniovably in the aforesaid relation, a switch frame disposecl in said upper room over said opening and constituting a sealing cover theretor wherehy to prevent the passage of gases from said lower room and switch casing into said upper room, and switch members carried by said switch treme having their lower ends imnersed in. the oii in said casing and their exposed terminals in said upper room.

13. A switch house having' upper and lower stories providing two vertically disposed roorns arranged to provide free working space for an attendent and isolateci froni each other by a horizontal Wall structure comprising the floor of the upper room and the ceiling of the lower room, said horizontal Wall structure having an opening therethrough, a switch frarne disposed in said upper room over said openin and constituting a sealing cover thcrefor wnereby to prevent the passage of gases froni said. lower room into said upper room, an oil switch cesing disposed in said lower room beneath said cover, and switch members carried by said switch frame and projecting through said horizontal wall structure with their iowcr ends innersed in the oil in said casing and their exposed ter minuls in said upper room.

14. A switch house having upper and 1oW- er stories providing two vertically disposed roons arranged to provide free working space for an attendant and isolated from each other by a horizontal wail structure comprising the floor of the upper room and the ceiling of the lower room, an oil switch casing in said lower room supported in an eievated position, a switch :frarne in said upper room, and switch members carried by said switch frane projecting through said horizontal wall and, having their lower ends innersed in the oil in said casing and their exposed ends in said upper room, and means wherehy said rooms are seaied from gaseous intercommunicatiou.

In testimony whereof', I have signed ny name to this specicatien.

GUSTAV JANSSON.

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