General Description. Types of Distribution Systems. Simple Radial. Primary Switch. Transformer

Transcription

1 January 0 Sheet 0 Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton.0- General Descrpton Defnton A secondary unt substaton s a closecoupled assembly consstng of enclosed prmary hgh voltage equpment, -phase power transformers, and enclosed secondary low voltage equpment. The followng electrcal ratngs are typcal: Prmary voltage:. kv kv. kva: Secondary voltage:, 0, 0 or 0 volts (maxmum). A secondary unt substaton s defned n the followng standards: NEMA Standard No.. IEEE Standard No. 0. Advantages As a result of locatng power transformers and ther close-coupled secondary swtchboards as close as possble to the areas of load concentraton, the secondary dstrbuton cables or busways are kept to mnmum lengths. Ths concept has obvous advantages such as: Reduced power losses. Improved voltage regulaton. Improved servce contnuty. Reduced exposure to low voltage faults. Increased flexblty. Mnmum nstallaton cost. Effcent space utlzaton. Addtonal advantages of Eaton s Cutler-Hammer unt substatons n ths unfed approach are: Sngle-source responsblty. Complete electrcal and mechancal control over coordnaton of the three close-coupled sectons. Avalablty of all swtchboard and swtchgear types gves broad applcaton flexblty. Modern desgn. Composte assembly retans proven safety and ntegrty of each of ts three major parts. Types of Dstrbuton Systems Smple Radal Prmary Swtch Fgure.0-. Smple Radal Smple and less costly. Easy to coordnate. No dle parts. Prmary Selectve Duplex MVS Selector MVS Fgure.0-. Prmary Selectve Radal Smlar to smple radal wth added advantage of a second prmary ncomng cable crcut. By swtchng to a second crcut, duraton of outage from cable falure s lmted. Secondary Selectve Low-Voltage Man Feeders M T M Fgure.0-. Secondary Selectve Normally operated as two electrcally ndependent unt substatons, wth bus te breaker (T) open, and wth approxmately half of the total load on each bus. In case of falure of ether prmary ncomng crcut, only one bus s affected, and servce can be promptly restored by openng man breaker (M) on the dead bus and closng te breaker (T). Ths operaton can be made automatc, wth duraton of outage on ether bus lmted to a few seconds. Snce the transformers are not paralleled, secondary fault currents and breaker applcatons are smlar to those on radal unt substatons. Servce contnuty and substaton capacty can be further mproved by substtutng selector type prmary swtches as n B. Loop Selectve MVS Fgure.0-. Loop Selectve Ths confguraton s based upon a strng of substatons beng fed from two sources. The power cables from the frst source termnate at a loop swtch n the substaton prmary swtchgear assembly, down the swtchgear bus to another loop swtch n the same swtchgear assembly, then back out to another loop swtch n a dfferent substaton. The loop cablng system s contnued through every unt substaton untl the cable connects to the second source. Typcally, the path from one substaton to another s broken by an open swtch n one of the substatons. The phlosophy s f there s a falure somewhere, or t s desred to perform mantenance to cable or a swtchgear assembly, t may be solated by openng the approprate swtches n the loop, thus restorng servce to the other substatons. Spot Network (See Secton ) Fgure.0-. Spot Network The transformers are parallel on the secondary sdes through network protectors. In case of prmary voltage falure, the assocated protector automatcally opens. The other protector remans closed, and there s no dead tme on the bus, even momentarly. When prmary voltage s restored, the protector automatcally checks for synchronsm and recloses. Secondary voltage regulaton s mproved by paralleled transformers. Secondary fault capablty s ncreased by paralleled transformers and the feeder breakers must be selected accordngly. Prmary swtches are usually selector or duplex type so that transformers may be transferred to alternate lve sources. CA000E For more nformaton vst:

2 .0- Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton January 0 Sheet 0 Cable Termnal Compartment, Ar Flled, No Dsconnect Load Interrupter Swtchgear, Type MVS, Unfused or Fused Poston Duplex Selector Loop Fgure.0-. MVS Swtch Arrangements Ar Termnal Compartment Ar termnal chamber s furnshed when connectng cables only to the transformer, such as n the case when the prmary crcut protecton or dsconnect swtch s remotely located from the unt substaton. The standard ar termnal chamber s a floor-standng, metalenclosure mechancally and electrcally connected to the transformer prmary, and ncludes the followng equpment: Clamp-type termnals and busconnectors, f requred, for makng the connecton from the bushngs to the customer-furnshed ncomng cables. Undrlled entrance plate for top or bottom entry of customer cables. Cutout and hardware for boltng to transformer Z-Bar flange. Gasket for nstallaton between termnal chamber and Z-Bar flange connecton for outdoor desgns only. Removable end panel for access to chamber. Type MVS Fused Swtch Secondary unt substatons requrng a prmary dsconnect are furnshed wth Eaton s Cutler-Hammer Type MVS metal-enclosed load nterrupter swtchgear assembles. Each assembly conssts of one (or more) gang-operated MVS swtch(es) wth full ar load break characterstcs. Wth power fuses ncorporated nto the assembly, the MVS swtchgear provdes short crcut protecton for the transformer as well. MVS swtchgear s furnshed as the standard hgh sde dsconnectng equpment for all secondary unt substatons, both Dry-Types and lqud-flled types. Ratngs See Techncal Data, Page.0- for standard ratngs. For addtonal detals see MVS Secton. MVS Swtchgear Features Quck-make, quck-break stored energy manual or optonal electrcally operated mechansm. Removable operatng handle convenently and attractvely stored. DE-ION arc nterrupton. Postve poston ndcaton. Standard nsulated cable connectons to transformer (voltage ratng kv maxmum) for fused swtches. Avalable wth current lmtng fuses or expulson fuses or unfused. Proven relablty. UL or CSA lstng s avalable as an opton. Swtch Arrangements In addton to the sngle, two-poston swtch for smple ON-OFF operaton from a sngle prmary feeder, other standard arrangements are avalable for use wth prmary selectve power centers nvolvng two prmary alternate sources. These arrangements are shown above. Metal-Enclosed Swtchgear Assembly, Type MSB MVS Swtchgear, when provded wth a fxed-mounted medum voltage vacuum crcut breaker nstead of fuses, s termed Type MSB Metal- Enclosed Swtchgear. Use of the medum voltage crcut breaker n conjuncton wth protectve relayng provdes a sgnfcantly hgher level of protecton for the transformer and low voltage swtchboard/swtchgear than that attanable wth fuses. Typcal protecton relayng functons are: Overcurrent and ground fault protecton. dfferental. Rate of rse relay on lqud-flled transformer. On sngle-ended substatons, deletng the secondary man crcut breaker mght be possble as the medum voltage crcut breaker and the protectve relays would serve the same purpose. In some crtcal applcatons t may stll be necessary to apply overcurrent relayng on the secondary of the transformer to trp the medum voltage crcut breaker rather than relyng solely on the prmary overcurrent protecton. Other Avalable Prmary Incomng Lne Equpment Medum Voltage Metal-Clad Swtchgear. See Secton. For more nformaton vst: CA000E

3 January 0 Sheet 0 Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton.0- Lqud-Flled Substaton s Applcaton Eaton s Cutler-Hammer Lqudflled substaton transformers are custom desgned power transformers sutable for both ndoor and outdoor applcatons. The transformers are of the sealed tank desgn and sutable for use n coordnated unt substaton n most any type of applcaton and envronment. Typcal applcatons of lqud-flled transformers are: Utlty substatons. Pulp and paper mlls. Steel mlls. Chemcal plants/refneres. General ndustry. Commercal buldngs. Benefts Custom desgn flexblty to meet specal customer needs and applcatons. Computerzed loss-evaluated desgns for specfc customer load and evaluaton crtera. Standard Features and Accessores Avalable n hgher kva ratngs. Hgh short crcut strength. ANSI short tme overload capablty. Alumnum or copper wndngs. Impervous to the envronment through sealed desgn. Lowest frst cost and comparable cost of ownershp to cast/dry desgns. Avalable as mneral ol-flled or wth less-flammable lquds, such as HTH, slcone, BIOTEMP or Envrotemp FR fluds. Desgn and Technology Lqud-flled transformers are custom desgned and manufactured. Cols are of the rectangular desgn wth Insuldur layer nsulaton. Prmary wndngs are comprsed of strap conductors, ether alumnum or copper. Secondary wndngs are ether full heght sheet conductors or strap conductor dependent on the voltage and kva ratng. The turn-to-turn nsulaton s coated wth a damond pattern of B-stage epoxy adhesve whch cures durng processng to form a hgh strength bond. Ths bond restrans the wndngs durng operaton and under short crcut stresses. Lqud-flled transformers are sutable for use up to C average rse over a maxmum ambent temperature of 0 C, not to exceed 0 C average for any -hour perod. The transformer may be specfed as C rse, n whch case the transformer has a self-cooled (OA) overload capablty of % wthout loss of lfe. Materal used for cores s non-agng, cold rolled, hgh permeablty, granorented slcone steel. Cores are rgdly braced to reduce sound levels and losses n the fnshed product. The core and col assembly s mmersed n ether mneral ol, slcone, BIOTEMP or Envrotemp FR flud and s contaned n a sealed tank. Flat, tubular or panel radators are mounted on the front and back of the tank. The lqud crculates through the tank and radators by means of natural convecton and effectvely cools the core and col assembly. Padlockable No Load Tap Changer Mechancal Relef Devce (Optonal) Lftng Hooks and Loops Pressure Vacuum Gauge Hgh-Voltage Cast Resn Bushng (Not Vsble) Welded Tank Cover Dal Type Thermometer Magnetc Lqud Level Gauge (Not Vsble) Low Voltage Sealed Cast Resn Bushng Stanless Steel Dagrammatc Nameplate LV and HV Z-Bar Flanges for Connecton to Incomng Lne Secton and Swtchgear Secton Provson for Forced Ar Coolng s Standard on s 0 kva and Above Upper Flter Press Connecton (Not Vsble) Base One-Inch Dran Valve wth /-nch (. mm) Sampler NEMA Ground Pad Lqud-Flled Substaton CA000E For more nformaton vst:

4 .0- Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton January 0 Sheet 0 Lqud-Flled Substaton s (Contnued) Accessores Standard accessores nclude: De-energzed padlockable manual tap changer. Lqud level gauge. Dal type thermometer. Pressure vacuum gauge. Dran valve. Upper flter press cap. Lftng hooks. Jackng pads. Ground pad. Dagrammatc nameplate. Welded handhole. Provsons for rollng and skddng. ANSI pant fnsh. Future fan provsons (on unts 0 kva through 00 kva). Core ground strap. Optonal Features Rapd pressure rse relay. Pressure relef devce. Dal hot spot ndcator. Alarm contacts on gauges. Control power transformer, sngle-phase 0 V to /0 V. C average rse. Non-standard ambent temperature (0 C average/-hour 0 C maxmum s standard). Non-standard alttude (up to,00 feet (,00 m) s standard). Non-standard BIL level. Fan coolng package. Lghtnng arresters. Low loss desgn (loss evaluaton). Specal sound level. Wye-wye connected wndngs. Tank undercoatng. Copper wndngs/bussng. Contanment pan wth dran valve. UL lsted. FM (Factory Mutual) Certfed. Factory Tests The followng tests are standard: Induced potental. Appled potental. Resstance measurement. Rato test. Polarty and phase relatonshp test. No load loss. Exctng current at rated voltage. Impedance and load loss. Regulaton, calculated from test results. Mechancal leak test. Specal Tests The followng tests can be provded at addtonal cost: Temperature rse. ANSI mpulse. Sound level. Corona (partal dscharge). Wtness. Insulaton resstance and power factor test. Short crcut. Zero-phase sequence mpedance. For more nformaton vst: CA000E

5 January 0 Sheet 0 Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton.0- VPI/VPE Dry-Type s Applcaton The Eaton s Cutler-Hammer VPI and VPE transformers are custom desgned dry-type power transformers whch gve envronmental protecton, for both ndoor and outdoor applcatons. The transformers are exploson resstant, fre resstant, non-pollutng to the envronment, and deally sutable for use n coordnated unt substatons. Typcal applcatons of VPI/VPE transformers are: Schools, hosptals, shoppng centers. Hgh-rse buldngs. Industral envronments. Benefts Custom desgn flexblty to meet specal customer needs and applcatons. Computerzed loss-evaluated desgns for specfc customer load and evaluaton crtera. Envronmental protecton. Low mantenance. Hgh short crcut strength. ANSI short tme overload capablty. Alumnum or copper wndngs. Avalable n NEMA, and R enclosures. Economcal. Ratngs. kva,0 kva. Prmary voltages: 0 V kv. Prmary BIL: up to kv. Secondary voltages: V kv. Secondary BIL: up to kv. Temperature rse: 0// C. Ventlaton Louvers Fan Control/ Wndng Temperature Indcator Removable Panel Desgn and Technology The dry-type transformers are custom desgned and manufactured wth cols nsulated wth C Class H Nomex, nsulaton system. Envronmental protecton s provded by vacuum pressure mpregnaton wth polyester resn (VPI). Enhanced envronmental protecton s avalable through the use of slcone resn encapsulaton (VPE). The VPE process provdes -cycle enhanced envronmental protecton. The entre core and col assembly s vacuum pressure encapsulated wth a slcone resn per MIL--0. Both systems are superor to the conventonal dry-type technology known as Dp and Bake. Both resn types, and Nomex, nsulaton system are C Class H rated. s wth Class H nsulaton are sutable for use up to C average rse over a maxmum ambent temperature of 0 C, not to exceed 0 C average for any -hour perod. Other temperature rse optons are 0 C and C, whch allow the transformer to be overloaded up to C rse. Fan Motor and Blades Dry-Type Substaton Core-Col Assembly Taps are provded on the central secton of the HV col face. Taps are accessed by removng enclosure panels, and taps are changed by movng the flexble bolted lnks from one connectng pont to the other. To smplfy these changes, the connecton ponts are clearly dentfed. Materal used for cores s non-agng, cold rolled, hgh permeablty, granorented slcone steel. Cores are constructed wth step lap mtered jonts and are rgdly braced to reduce sound levels and losses n the fnshed product. To reduce the transfer of nose to the case, the core s mounted on neoprene rubber vbraton dampeners. The core s electrcally grounded by means of a flexble ground brad. The enclosure has removable panels for access to taps and for core and col nspecton. The complete case can be removed and knocked down to reduce sze and weght for rggng nto tght locatons. CA000E For more nformaton vst:

6 .0- Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton January 0 Sheet 00 VPI/VPE Dry-Type s (Contnued) Accessores Standard accessores nclude Jackng pads. Ground pad. Dagrammatc nameplate. Provsons for rollng. Ventlaton grlles. Core ground strap. Prmary reconnectable taps. Future fan provsons on unts over 00 kva. Core ground strap. ANSI pant fnsh. Step-lap mtered core. NEMA enclosure. Optonal Features Copper wndngs/bussng (alumnum s standard). VPE slcone resn vacuum pressure mpregnaton and encapsulaton. Fan coolng package, complete wth dgtal wndng temperature. 0 C or C rse ( C rse s standard). Non-standard ambent temperature (0 C average/-hour 0 C maxmum s standard). Non-standard alttude (up to,00 feet (,00 m) s standard). Non-standard BIL level. NEMA R enclosure. Alumnum or copper ground bus. Lghtnng arresters. Low loss desgn (loss evaluaton). Specal sound level. Wye-wye connected wndngs. UL label. Tests The followng tests are standard: Induced potental. Appled potental. Resstance measurement. Rato test. Polarty and phase relatonshp test. No load loss at rated voltage. Exctng current at rated voltage. Impedance and load loss. Qualty control mpulse. Specal Tests The followng tests can be provded at addtonal cost: Temperature rse. ANSI mpulse. Sound level. Wtness. For more nformaton vst: CA000E

7 January 0 Sheet 0 Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton.0- RESIBLOC Epoxy Cast Resn s RESIBLOC Substaton Applcaton The Eaton s Cutler-Hammer RESIBLOC cast resn transformers are premum, custom desgned, dry-type power transformers whch offer longer lfe, hgher BIL levels, superor mechancal and short crcut strength as well as superor protecton aganst hgh mosture, metallc dust-laden and harsh chemcal envronments. RESIBLOC cast resn transformer may be appled ndoors as well as outdoors. The transformers are exploson resstant, fre resstant, non-pollutng to the envronment and deally sutable for use n a coordnated unt substaton. Typcal applcatons of RESIBLOC cast resn transformers are: Steel mlls. Hgh-rse buldngs/rooftop unts. Pulp and paper mlls. Cement mlls and mnng operatons. Chemcal plants. Water-slde nstallatons, sand and salt spray. Ral transportaton systems. Benefts Custom desgn flexblty to meet specal customer needs and applcatons. Computerzed loss-evaluated desgns for specfc customer load and evaluaton crtera. Envronmental mmunty, unlmted storage. Practcally mantenance free. Hghest possble short crcut strength. Ultmate wthstand to thermal and mechancal stresses. ANSI short-tme overload capablty. Copper wndngs. Avalable n NEMA,, R enclosures. Low losses and longest lfe for greatest economy of ownershp. Ratngs. kva,0 kva. Prmary voltages: 00 V. kv. Prmary BIL: up to kv. Secondary voltages: V kv. Secondary BIL: up to kv. Temperature rse: 0 C. Desgn and Technology The RESIBLOC epoxy cast resn transformers are custom desgned and manufactured wth cols nsulated wth epoxy and renforced wth glass fber. Low Voltage Wndngs low voltage wndngs wth an nsulaton class of. kv (0 V) and below, are wound usng sheet conductors whch allow free current dstrbuton wthn the axal wdth of the col and elmnate the axal forces developed n other types of wndngs under short crcut condtons. The mpregnated nsulaton bonds the sheet conductors together to form a sold wndng block for nternal mechancal strength. Durng assembly, each low voltage wndng s blocked radally aganst the core for addtonal short crcut ntegrty. Hgh Voltage Wndngs hgh voltage wndngs, nsulaton class. kv (00 V) and above, are wound usng the exclusve RESIBLOC cast resn constructon whch s renforced wth a lcensed glass rovng technque. Ths fber rovng technque was orgnally developed for producton of synthetc cylndrcal components, such as contaners, whch are subject to hgh mechancal loads. The use of the glass fber rovng technque n the manufacture of RESIBLOC transformers provdes mechancal, thermal and short crcut strength whch s unequaled. The hgh cols are coaxally mounted over the low voltage wndngs on the core legs. Epoxy The epoxy used n RESIBLOC s a bsphenol A-based resn whch s halogen-free to ensure that no harmful decomposton products are formed n the event of a fre. In addton, epoxy s one of the best non-hygroscopc materals avalable for nsulaton, and s hghly resstve to chemcals and harsh ndustral envronments. Temperature Rse RESIBLOC cast transformers use C class nsulaton and are typcally specfed for 0 C average rse over a maxmum ambent temperature of 0 C, not to exceed 0 C average for any -hour perod. Taps Taps are provded on the central secton of the HV col face. Taps are accessed by removng enclosure panels, and taps are changed by movng the flexble bolted lnks from one connectng pont to the other. To smplfy these changes, the connecton ponts are clearly dentfed. Core Materal used for cores s non-agng, cold rolled, hgh permeablty, granorented slcone steel. Cores are constructed wth strap lap mtered jonts and are rgdly braced to reduce sound levels and losses n the fnshed product. To reduce the transfer of nose to the case, the core s mounted on neoprene rubber vbraton dampeners. The core and assocated core clamps and structural parts are electrcally grounded to prevent an nduced voltage buldup. Enclosure The enclosure has removable panels for access to taps and for core and col nspecton. The complete case can be removed and knocked down to reduce sze and weght for rggng nto tght locatons. Accessores Standard accessores nclude: Jackng pads. Ground pad. Dagrammatc nameplate. Provsons for rollng. Ventlaton grlles. Core ground strap. Future fan provsons on unts over 00 kva. Reconnectable prmary taps. ANSI pant fnsh. Step-lap mtered core. NEMA enclosure. CA000E For more nformaton vst:

8 .0- Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton January 0 Sheet 0 RESIBLOC Epoxy Cast Resn s (Contnued) Optonal Features Fan coolng package, complete wth dgtal wndng temperature. Non-standard ambent temperature (0 C average/-hour 0 C maxmum s standard). Non-standard alttude (up to,00 feet (,00 m) s standard). Non-standard BIL level. NEMA R enclosure. Lghtnng arresters. Low loss desgn (loss evaluaton). Specal sound level. Wye-wye connected wndngs. Tests The followng tests are standard: Induced potental. Appled potental. Resstance measurement. Rato test. Polarty and phase relatonshp test. No load loss. Exctng current at rated voltage. Impedance and load loss. Partal dscharge test (for cols rated. kv and hgher). Qualty control mpulse. Specal Tests The followng tests can be provded at addtonal cost: Temperature rse. ANSI mpulse. Sound level. Wtness. For more nformaton vst: CA000E

9 January 0 Sheet 0 Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton.0- Cast Col s Applcaton The Eaton s Cutler-Hammer cast col transformers are premum, custom desgned, dry-type power transformers whch offer longer lfe, hgher BIL levels, superor short crcut strength and superor protecton aganst hgh mosture, metallc dust-laden and harsh chemcal envronments. Cast col transformers may be appled ndoors as well as outdoors. The transformers are exploson resstant, fre resstant, non-pollutng to the envronment and deally sutable for use n coordnated unt substatons. Typcal applcatons of cast col transformers are: Steel mlls. Hgh-rse buldngs/rooftop unts. Pulp and paper mlls. Cement mlls and mnng operatons. Chemcal plants. Water-sde nstallatons, sand and salt spray. Ral transportaton systems. Benefts Custom desgn flexblty to meet specal customer needs and applcatons. Computerzed loss-evaluated desgns for specfc customer load and evaluaton crtera. Envronmental mmunty, unlmted storage. Practcally mantenance free. Hghest possble short crcut strength. ANSI short-tme overload capablty. Alumnum or copper wndngs. Avalable n NEMA, and R enclosures. Low losses and longest lfe for greatest economy of ownershp. Ultmate mpulse wthstand. Mosture and chemcal resstant. Ratngs. kva,0 kva. Prmary voltage: 00 V kv. Prmary BIL: up to 0 kv. Secondary voltages: V kv. Secondary BIL: up to kv. Temperature rse: 0/0/ C. LV Bus Core-Col Assembly HV Bus Desgn and Technology The cast col transformers are custom desgned and manufactured wth cols nsulated wth materals such as glass mat and DuPont Nomex. The epoxy used n the castng process has the lowest temperature tolerance and lmts the nsulaton system to C. The thckness of the epoxy s carefully engneered to provde maxmum strength and envronmental protecton and yet mnmze the temperature dfferental through the core thckness n order to lmt destructve stresses. HV and LV cols are separately manufactured and mounted coaxally on the core legs wth blocks to hold them frmly, yet permt expanson and contracton. HV wndngs are wound wth one or more strands of rectangular wre, nto dsc or drum development and placed nto molds. They are dred and vacuum poured or cast, to elmnate mosture and vods n the sealng process. Low voltage wndngs are hermetcally sealed n epoxy usng one of two processes. The wndngs can also be desgned wth ar ducts for mproved coolng performance. The frst method used to seal low voltage wndngs s the pre-mpregnated nsulaton process. Ths process conssts of wndng the sheet conductor(s) n parallel wth an epoxy pre-mpregnated sheet of nsulaton. After the wndng process s completed, the col s baked to dry the mosture from the wndng and to cure the epoxy pre-mpregnated nsulaton. The curng process bnds the col together to form a sold wndng block. The ends of the col are then sealed wth epoxy for added protecton. The second process s to cast Cast Col Substaton Ventlaton Louvers Fan Control/ Wndng Temperature Indcator Removable Panel Fan Motors and Blades the low voltage wndng n a mold. Wndngs wth operatng voltage less than 0 volts are cast utlzng a pressure njecton process. Wndng wth operatng voltages greater than 0 volts are processed usng the same technques employed for the hgh voltage wndngs. Cast transformers use C class nsulaton and are typcally specfed for 0 C average rse over a maxmum ambent temperature of 0 C, not to exceed 0 C average for any -hour perod. Other temperature rse optons are 0 C or C. Taps are provded on the central secton of the HV col face. Taps are accessed by removng enclosure panels, and taps are changed by movng the flexble bolted lnks from one connectng pont to the other. To smplfy these changes, the connecton ponts are clearly dentfed. Materal used for cores s non-agng, cold rolled, hgh permeablty, gran-orented slcone steel, cores are constructed wth strap lap mtered jonts and are rgdly braced to reduce sound levels and losses n the fnshed product. To reduce the transfer of nose to the case, the core s mounted on neoprene rubber vbraton dampeners. The core and assocated core clamps and structural parts are electrcally grounded to prevent an nduced voltage buldup. The enclosure has removable panels for access to taps and for core and col nspecton. The complete case can be removed and knocked down to reduce sze and weght for rggng nto tght locatons. CA000E For more nformaton vst:

10 .0- Secondary Unt Substatons Secondary Below 00 V Product Overvew General Descrpton January 0 Sheet 0 Cast Col s (Contnued) Accessores Standard accessores nclude: Jackng pads. Ground pad. Dagrammatc nameplate. Provsons for rollng. Ventlaton grlles. Core ground strap. Future fan provsons on unts over 00 kva. Reconnectable prmary taps. ANSI pant fnsh. Step-lap mtered core. NEMA enclosure. Optonal Features Copper wndngs. Full cast secondary. Fan coolng package, complete wth dgtal wndng temperature. 0 C or C rse (0 C rse s standard). Non-standard ambent temperature (0 C average/-hour, 0 C maxmum s standard). Non-standard alttude (up to,00 feet (,00 m) s standard). Non-standard BIL levels. NEMA R enclosure. Lghtnng arresters. Low loss desgn (loss evaluaton). Specal sound level. Wye-wye connected wndngs. UL lstng. Tests The followng tests are standard: Induced potental. Appled potental. Resstance measurement. Rato test. Polarty and phase relatonshp test. No load loss. Exctng current at rated voltage. Impedance and load loss. Partal dscharge test (for cols rated. kv and hgher). Qualty control mpulse. Specal Tests The followng tests can be provded at addtonal cost: Temperature rse. ANSI mpulse. Sound level. Wtness. For more nformaton vst: CA000E

11 .0- Secondary Unt Substatons Secondary Below 00 V Layout Dmensons s January 0 Sheet 0 Lqud-Flled Table.0-. Ol-Flled Standard Desgn, Hz, HV Delta, LV at 0 Volt Class (0 kv BIL) Indoor or Outdoor Applcaton kva HV, kv HV BIL, kv Dmensons n Inches (mm) Weght H Lbs. (kg) TX W TX D TX Ol-Flled C Rse 00 or or.00 (.0).00 (.),00 () 0 00 or or.00 (.).00 (.),000 () 0 0 or 00 or 0 or 00 or 00 or Ol-Flled / C Rse or or or or or.00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.0) 0.00 (0.0).00 (.0) 0.00 (0.0).00 (.0) 0.00 (0.0) 0.00 (0.0).00 (.).00 (.).00 (.).00 (.).00 (.0).00 (.).00 (.0).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.) 0.00 (.0).00 (0.).00 (.) 0.00 (.0).00 (.).00 (.).00 (.).00 (.).00 (0.).00 (.) 0.00 (0.0).00 (.0).00 (.).00 (.0).00 (.0).00 (.).00 (.).00 (.).00 (.0).00 (.),00 (),0 (),0 (),00 (),000 (),00 (0),0 (),00 (),000 (0),000 (0),00 (),000 (0),000 (),00 (),0 (),000 (),000 (),00 (),000 () 00 or or.00 (.).00 (.),00 () 0 00 or or 0.00 (0.0).00 (0.0),000 () 0 0 or 00 or 0 or 00 or 00 or or or or or or.00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.0) 0.00 (0.0).00 (.0) 0.00 (0.0).00 (.0) 0.00 (0.0).00 (.).00 (.).00(.).00 (.0).00 (.0).00 (.).00 (.).00 (.).00 (0.).00 (.0).00 (.0).00 (.).00 (.).00 (.).00 (.).00 (.).00 (0.0) 0.00 (.0).00 (.).00 (.0).00 (.).00 (0.).00 (.0).00 (.).00 (.).00 (.).00 (.).00 (0.).00 (.).00 (0.).00 (.0).00 (0.0).00 (.0).00 (.).00 (.) 0.00 (0.0).00 (0.).00 (.0),00 (),0 (),0 (),00 (),000 (),00 (0),0 (),00 (),000 (0),000 (0),00 (),000 (0),000 (),00 (),0 (),000 (),000 (),00 (),000 () Lqud Gallons Plan Elevaton H TX C L of Bushng D TX C L ➀ Fgure.0-. Lqud-Flled, Indoor and Outdoor = nches (.0 mm) for all ratngs through kv prmary, 0 V secondary. Dmensons for estmatng purposes only. W TX For more nformaton vst: CA000E

12 January 0 Sheet 0 Secondary Unt Substatons Secondary Below 00 V Layout Dmensons s.0- Slcone, BIOTEMP, FR and HTH-Flled Unts Table.0-. Lqud-Flled Standard Desgn, Hz, HV Delta, LV at 0 Volt Class (0 kv BIL) Indoor or Outdoor Applcaton kva HV, kv HV BIL, kv Dmensons n Inches (mm) Weght H Lbs. (kg) TX W TX D TX Lqud-Flled C Rse 00 or or.00 (.).00 (.),00 () 00 or or 0.00 (0.0).00 (.),00 () 0 or 00 or 0 or 00 or 00 or Lqud-Flled / C Rse or or or or or.00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.0) 0.00 (0.0).00 (.0) 0.00 (0.0).00 (.0) 0.00 (0.0).00 (.).00 (.).00 (.0).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.0).00 (.) 0.00 (.0).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.0).00 (.).00 (0.).00 (.).00 (0.).00 (.0).00 (0.).00 (.0).00 (.).00 (0.) 0.00 (0.0).00 (.).00 (.0),00 (),000 (),00 (),0 (),00 (),00 (0),000 (0),00 (),000 (0),00 (),00 (0),00 (),00 (0),000 (0),000 (),00 (),000 (),00 (0),0 () 00 or or.00 (.).00 (.),000 () 00 or or.00 (.).00 (.),000 () 0 or 00 or 0 or 00 or 00 or or or or or or.00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.).00 (.0) 0.00 (0.0).00 (.0) 0.00 (0.0).00 (.0) 0.00 (0.0).00 (.).00 (.).00 (.).00 (.).00 (.0).00 (.).00 (.).00 (.).00 (.).00 (.0).00 (.0) 0.00 (.0).00 (.0).00 (.0) 0.00 (.0).00 (.).00 (.).00 (.).00 (0.).00 (.) 0.00 (0.0).00 (.).00 (.).00 (.).00 (0.0).00 (.).00 (0.).00 (.0).00 (0.0).00 (.0).00 (.).00 (0.).00 (0.) 0.00 (0.0) 0.00 (0.0).00 (0.).00 (0.).00 (0.),0 (),000 (),0 (),0 (),00 (0),0 (),000 (0),00 (),00 (0),00 (0),00 (),00 (0),0 (),00 (),00 (),00 (0),00 (),0 (),000 (00) Lqud Gallons (Approxmate) Plan Elevaton D TX C L H TX C L of Bushng ➀ Fgure.0-. Lqud-Flled, Indoor and Outdoor = nches (.0 mm) for all ratngs through kv prmary, 0 V secondary. Dmensons for estmatng purposes only. W TX CA000E For more nformaton vst:

13 .0- Secondary Unt Substatons Secondary Below 00 V Layout Dmensons s January 0 Sheet 0 VPI and VPE Ventlated Dry-Type Table.0-. Alumnum Wndngs, Standard Desgn, Delta-Wye, Hz, Indoor, 0 Volt LV Class at kv BIL, Indoor kva HV, kv HV BIL, Dmensons n Inches (mm) Weght kva HV, HV BIL, Dmensons n Inches (mm) Weght kv H Lbs. (kg) kv kv Lbs. (kg) TX W TX D TX H TX W TX D TX C Rse 0 or C Rse (.) 0 (0.0) 0 (0.0) 0 (.0) (.0) (.) (.) (.) (.) (.) (.) (.) (.) (.) (.) (0.) (.) (.) (.) (.) (.) (.) (0.) (.) (.) (.) (.0) (.) (.) (.0) (.0) (.0) (.) (.0) (.0) (.) (.0) (.) (.) (.) (.) (.) 0 () 0 () 000 () 00 () 00 () 0 () 000 () 00 () 00 () 0 () 00 () 000 () 00 () 00 () 00 (0) 000 () 0 () 00 (),000 (0),00 () 00 (),00 (),000 (),00 (),00 (),000 (00),00 (),000 (),000 (),000 (),000 (),000 (),000 (),000 (),000 (),000 () For outdoor base constructon, add nches (0. mm) to heght and nches (. mm) to wdth and depth. Roof overhangs. nches (. mm) front and rear. 0 kv BIL s standard for kv class; kv BIL s avalable as an opton. kv BIL s standard for kv class; kv BIL s avalable as an opton. Note: Smaller dmensons/weghts may be avalable, refer to Eaton. 0 (0.0) 0 (0.0) 0 (0.0) 0 (.0) 0 (0.0) 0 (.0) (.) (.) (.) (.) (.) (.) (.) (0.) (.) (.) (.) (.) (.) (0.) (0.) (0.) (.) (.0) (0.) (.) (.) (.0) (0.) (.) (.0) (.0) (.0) (.0) (.0) (.0) (.) (.) (.) 000 () 000 () 00 () 00 () 0 () 00 () 000 () 00 (0) 0 () 000 () 000 () 00 () 00 () 0 () 00 (),000 (0) 00 (),00 (),000 (),00 (),000 (),000 (00),0 (),00 (),000 (),00 (),000 (),00 (),000 (),000 (),000 (00),000 (),000 (),000 (),000 (),000 (,) H TX D W TX TX Fgure.0-. Indoor Ventlated Enclosure (NEMA Constructon) Dmensons for estmatng purposes only. For more nformaton vst: CA000E

14 January 0 Sheet 0 Secondary Unt Substatons Secondary Below 00 V Layout Dmensons s.0- Cast Col and RESIBLOC Dry-Type Table.0-. Standard Wndngs, Standard Desgn, Delta-Wye, Hz, Indoor, 0 Volt LV Class at kv BIL, Indoor kva HV, HV BIL, Dmensons n Inches (mm) Weght kva HV, HV BIL, Dmensons n Inches (mm) Weght kv kv H Lbs. (kg) kv kv Lbs. (kg) TX W TX D TX H TX W TX D TX 0 C Rse 0 C Rse or C Rse (.) (.) (.) (.) (.) (.) (.) (.) (.) (0.) (.) (0.) (.) (.) (0.) (.) (0.) (.) (.0) (0.) (.) (.0) (.0) (.0) (.0) (.0) (.0) (.0) (.0) (.0) (.) (.) (.) (.) (.) (.) (.) (.) 000 () 00 () 00 () 0 () 00 (0) 00 () 00 () 00 () 00 (0) 00 () 000 (0),00 (0),000 (),00 (),00 (),000 (0),0 (),000 (),000 (),000 (),00 (),0 (),000 (),0 (),00 (,),00 (,),000 (,),000 (,),000 (,),000 (,0),000 (,0),000 (,) For outdoor base constructon, add nches (0. mm) to heght and nches (. mm) to wdth and depth. Roof overhangs. nches (. mm) front and rear. 0 kv BIL s standard for kv class; kv BIL s avalable as an opton. kv BIL s standard for kv class; kv BIL s avalable as an opton. Note: Smaller dmensons/weghts may be avalable, refer to Eaton. (.) (.) (.) (.) (.) (0.) (0.) (0.) (.0) (.0) (.0) (.0) (.0) (.0) (.0) (.0) (.) (.) 00 () 0 (0) 00 () 0 () 00 (0) 00 () 00 () 00 (),0 (),00 (0),00 (0),000 (0),0 (0),00 (),000 (00),000 (),000 (,),000 (,0) H TX D W TX TX Fgure.0-. Indoor Ventlated Enclosure (NEMA Constructon) Dmensons and weghts for estmatng purposes only. CA000E For more nformaton vst:

15 January 0 Sheet 0 Secondary Unt Substatons Secondary Below 00 V Techncal Data s.0- Table.0-. Secondary Short Crcut Capacty of Typcal Power s Ratng -Phase kva and Impedance % 00 % 00 % Maxmum Short Crcut kva Avalable from Prmary System 0,000 0,000,000 0,000 00,000 Unlmted 0,000 0,000,000 0,000 00,000 Unlmted 0,000 0,000,000 0,000 00,000 Unlmted 0,000 0,000,000 0,000 00,000 Unlmted 0,000 0,000,000 0,000 00,000 Unlmted 0,000 0,000,000 0,000 00,000 Unlmted 0,000 0,000,000 0,000 00,000 Unlmted 0,000 0,000,000 0,000 00,000 Unlmted 0,000 0,000,000 0,000 00,000 Unlmted Volts, -Phase 0 Volts, -Phase 0 Volts, -Phase 0 Volts, -Phase Rated Load Contnuous Current, Amps Short Crcut Current rms (Symmetrcal Amperes) Alone,00,00,000,00,00,00,00,0,000,00,0,00 0,00,000,00,00,0,0,00,0,00,0,00,00,0,00,00,0,00,00 0% Motor Load 00,0,00,00,000,0,00 00,00,000,00,00 0,000 0,0 0,00,0,00,0,00 0,00 0,00,00,00 0,00,00,00 00,00,00 0,0,00,0 0,00 Rated Load Contnuous Current, Amps Short Crcut Current rms (Symmetrcal Amperes) Alone,0,,0,,00,00,000,00,00,0,0,0 0,00,00,00,00 0,0,00 0,000,0,00,0 0,00,00,0,00,00,00,0,00 0% Motor Load Rated Load Contnuous Current, Amps Short Crcut Current rms (Symmetrcal Amperes) Rated Load Contnuous Current, Amps Short Crcut Current rms (Symmetrcal Amperes) Short crcut capacty values shown correspond to kva and mpedances shown n ths table. For mpedances other than these, short crcut currents are nversely proportonal to mpedance. The motor s short crcut current contrbutons are computed on the bass of motor characterstcs that wll gve four tmes normal current. For volts, 0% motor load s assumed whle for other voltages 0% motor load s assumed. For other percentages, the motor short crcut current wll be n drect proporton. 00,00,00,00,000,0,00 00,00,00,00,00,00,00 0,0,000,0,000,00,0 00 0,0,0,0,00 0,000,00,00,0,0,00,0,000,0 Combned Combned Alone,00,00,00,000,0,0,000,00,00,0,00,000 0,00,00,00,00,00,00,00,00,00,0,0,00 0,0,00,00,00,00,00 0,00,000,000,00,0,00 00,000,00 0,00,0,0,00 0,00,0,0,00,00,00,000,00,00,0,00,00 0% Motor Load 00,00,0,00,00,00,0 00,00,00,00,000,0,00 0,000,00,000,00,00,00 00,00,0,00,00,000,00 0,00,0,00,0,000,0 0,00 0,0,0,00,00,00,000 0,000,00,00,0,0,00,000,00,0,0,00 0,00,00,000,000,00,00 0,0,00,00 Combned Alone,0,00,0,0,00,00,000,00,000,00,00,0,000,0,0,00,0,0,00,00,000,0,0,00,00,000,00,00,00,0,00,00,0,00,00,00 0,00,0,00,0,00,00,0,000,00,00,00 0,0,0,000,00,00,00,00 0% Motor Load Combned 0,00,00,00,00,00,000 00,00,0,00,0,00,00 00,00,000,00,00,0,00 00,00,0,00,00,0,0 00,00,00,0,00,00 0,00 00,00,0,000,0,0,00 0,000,00,000,0,0,00,00,0,00,00,000,000,00,00,0,00,0,0,00,0 CA000E For more nformaton vst:

16 .0- Secondary Unt Substatons Secondary Below 00 V Techncal Data s January 0 Sheet 0 Table.0-. ANSI Standard Insulaton Levels kv BIL Hgh- Voltage Ratng,00,,00,00,0,000,0,0,00,00,00 Lqud-Flled Ventlated Dry Cast Col HV LV HV LV HV LV volt maxmum. Note: Increased BIL opton s avalable. Table.0-. Standard Guaranteed Sound Levels Decbels Maxmum Base kva (Self-Cooled) Lqud-Flled Table.0-0. Impedances (±- % Tolerance) kva Optonal mpedance values are avalable up to.0%. Contact Eaton for further nformaton. 0 0 Ventlated Dry and Cast Col OA FA AA FA Lqud-Flled.0%.0% 0 Ventlated Dry and Cast Col Table.0-. kva Ratngs, -Phase In addton to ther self-cooled (AA or OA) kva ratngs, Eaton s Cutler-Hammer standard Secondary Unt Substaton s of lqud-flled and ventlated dry-types are desgned for contnuous operaton at the followng supplementary self-cooled and fan-cooled (FA) kva ratngs: Lqud-Flled C Rse / C Rse OA FA OA C OA C FA C FA C Ventlated Dry-Type Cast Col N/A N/A N/A N/A N/A N/A C Rse / C Rse AA FA AA C AA C FA C / C Rse 0/ C Rse AA 0 C AA C FA C AA 0 C AA C FA C C Rse 0/0 C Rse AA FA AA 0 C AA 0 C FA 0 C For more nformaton vst: CA000E