1100 OVERHEAD TRANSFORMERS

Transcription

1 00 OVEHEAD TANSFOMES //00 ~ F Pole Type - Transformer Fuse Schedule ~ T Transformer Field Stenciling Code ~ TA Transformer Coding for Material Mgmt System C T,TH Pole Mounted Transformer and Cutout on Pole C T4,T4H Pole Mounted Transformer and Cutout on Crossarm C T C T C T C T N New Standard edrawn Standard C Changed Standard ~ No Change Crossarm Construction - Two Transformers - Open Wye Primary Twiggy Construction - Two Transformers - Open Wye Primary Three Transformers - Grounded Y - Grounded Y Three Transformers - Closed Δ - Closed Δ ~ T4 Cluster Mount with Band Extensions ~ TCA Ø & Ø, Winding Boost or Buck Xfmr Bank - Installation & emoval Procedure ~ TC Ø Open Δ for 0/40 Ø 4-wire, 40 Ø -wire, 480v Ø -wire ~ TC4 Ø Open-Y Open-Δ for 0/40 Ø 4-wire, 40 Ø - wire, 480v Ø -wire ~ TC5 Ø Δ-Δ for 0/40 Ø 4-wire, 40 Ø -wire, 480v Ø -wire TC5A TC6 TC7 TC8 Ø Δ-Δ Closed Banks for 0/40 Ø 4-wire, 40 Ø -wire, 480v Ø -wire Ø Δ-Y for 0/08 or 77/480v Service Ø Y-Y for 0/08 or 77/480v Service Ø Y-Δ for 40v Ø -wire 480v Ø -wire ~ TC9 Ø Δ-Y for 480v -wire Service ~ TC0 Ø Transformer Connections ~ TC Ø Transformer Connections C TL Transformer Lead Sizes - Overhead Secondary ~ TL Large Transformer Lead Size - Overhead

2 Size (KVA) Single Phase Open Wye Open Delta Three Transformer Three Phase.5 or.5 or or 5 0 or FUSE SCHEDULE - 400V TANSFOME amp 5 amp 7 amp 0 amp amp 0 amp 0 amp 40 amp 50 amp 80 amp 00 amp amp 7 amp 0 amp amp 5 amp 0 amp 50 amp 80 amp 00 amp 0 amp 0 amp FUSE SCHEDULE - 700V TANSFOME amp amp amp amp amp 5 amp 5 amp 0 amp amp 0 amp 0 amp 40 amp 65 amp amp amp amp amp amp 5 amp 5 amp 0 amp amp 0 amp 0 amp 40 amp 65 amp FUSE SCHEDULE -,470V TANSFOME amp amp amp amp 5 amp 7 amp 0 amp amp 0 amp 5 amp 40 amp 40 amp 50 amp 65 amp amp amp amp 5 amp 5 amp 0 amp amp 0 amp 0 amp 40 amp 65 amp 65 amp 80 amp 80 amp AMP ating - Use fuses sized for lighter transf. & fuse for power transf. on delta-delta banks. POLE TYPE TANSFOME FUSE SCHEDULE EVISIONS DATE ENG /0 of F F EDAWN IN CAD APP: ELM DATE: //80 00

3 PIMAY SECONDAY CODE VOLTAGE CODE VOLTAGE A B C *C-X D,400 7,00,000,000 66,000 A B C L M N O P S U W Y,400 7,00, /40 0/40/ / / /480/400 *,000 Volt transformers with a ratio other than 00 to will have X following the voltage code / /40,000 0/40 /480 KVA-Voltage CPU No. Taps 5BM 4 T 0AM 978 5CNX 47 T Has taps Has no taps Has taps A-B on third line indicates taps both above and below 00%. TANSFOME FIELD STENCILING CODE EVISIONS DATE ENG /0 of T T EDAWN IN CAD APP: ELM DATE: //80 00

4 MATEIAL MANAGEMENT GID ENTY CODES VOLTAGE CODING PIMAY SECONDAY Code Voltage Code Voltage A B C C-X*,400,470/7,00,000,000 A L M W,400 0/08 0/40 40/480 77/480 *,000 Volt transformers with a ratio other than 00 to will have X following the voltage code. TAP SETTINGS Tap % Voltage Tap % Voltage A B C D E F G N No taps (00%) (ef. only -G.E. Co.) I 00 II 95.5 III 9 IV 86.5 Abbreviations: P- Padmount transformer H- Overhead transformer Example: 50BMT, Padmount, Tap 97.5%, Ø P 50 B M F Padmount Transformer KVA Size Voltage ating Tap Setting Example: 5KVA, BM, Overhead, Tap 9.5% H 5 B M F Padmount Transformer KVA Size Voltage ating Tap Setting TANSFOME CODING FO MATEIAL MANAGEMENT SYSTEM EVISIONS DATE ENG /0 of TA TA EDAWN IN CAD APP: ELM DATE: //80 00

5 Description: Padmount Single Phase Transformer - Bushing Primary Voltage:,470/7,00 40/0 Taps: C.D.E.F.G KVA Sizes: 5, 50, 75, 00 Coding for MMS: P BM_ Description: Padmount Single Phase Transformer - Bushing Primary Voltage:,470/7,00 40/0 Taps: C.D.E.F.G KVA Sizes: 50, 75, 00 Coding for MMS: P BM_ Description: Padmount Single Phase Transformer - Bushing Primary Voltage:,470/7,00 40/0 Taps: No Taps KVA Sizes: 5, 50, 75 Coding for MMS: P BMN Description: Padmount Three Phase Transformer - 6 Bushing Primary Voltage:,470/7,00 08/0 Taps: C.D.E.F.G KVA Sizes: 45, 75, 0, 5, 00, 500, 750, 000, 00 Coding for MMS: P BL_ Description: Padmount Three Phase Transformer - 6 Bushing Primary Voltage:,470/7,00 480/77 Taps: C.D.E.F.G KVA Sizes: 45, 75, 0, 5, 00, 500, 750, 000, 00, 500 Coding for MMS: P BW_ Description: Pole/Overhead Single Phase Transformer Voltage:,470/7,00 0/40 Taps: C.D.E.F.G KVA Sizes:, 5, 7 (7.5), 50, 75, 00 Coding for MMS: H BM_ TANSFOME CODING FO MATEIAL MANAGEMENT SYSTEM EVISIONS DATE ENG /0 of TA TA EDAWN IN CAD APP: ELM DATE: //80 00

6 Description: Pole/Overhead Single Phase Transformer Voltage:,470/7,00 0/40 Taps: No Taps KVA Sizes:, 5, 7 (7.5) Coding for MMS: H BMN Description: Pole/Overhead Single Phase Transformer Voltage:,470/7,00 40/480 Taps: C.D.E.F.G KVA Sizes:, 5, 7 (7.5) Coding for MMS: H B_ Description: Pole/Overhead Single Phase Transformer, L to L Voltage:,000 0/40 Taps: A.B.C.D.E. KVA Sizes:, 5, 7 (7.5), 50, 75, 00, 67,, 500 Coding for MMS: H CM_ Description: Pole/Overhead Single Phase Transformer, L to L Voltage:,000 40/480 Taps: A.B.C.D.E. KVA Sizes:, 5, 7 (7.5), 50, 75, 00, 67,, 500 Coding for MMS: H C_ Description: Pole/Overhead Single Phase Transformer, L to L Voltage:, Taps: A.B.C.D.E. KVA Sizes: 50, 75, 67 Coding for MMS: H CW_ Description: Pole/Overhead Single Phase Transformer, Stepdown Voltage:, Taps: No Taps KVA Sizes: 5, 50, 75, 00, 0 Coding for MMS: H CAX TANSFOME CODING FO MATEIAL MANAGEMENT SYSTEM EVISIONS DATE ENG /0 of TA TA EDAWN IN CAD APP: ELM DATE: //80 00

7 See Notes & Note: See Std. T5 for service connections 4 Notes:. Use pre-drilled holes for transformers insuring that tank does not rest on neutral.. Fuse per spec. F.. Call for hot line stirrup separately: 4. 75KVA and larger use TH. WIE SIZE S/N #6 SLD-#6 ST Cu 8 #4-/0 Al/Cu 9 97 MCM Al/Cu MCM Al/Cu 4 ev : Changed to copperweld ground and corrections. POLE MOUNTED TANSFOME AND CUTOUT ON POLE 0 EVISIONS DATE ENG /0 EDAWN IN CAD //0 CM AH 5// KJP of T,TH T APP: DATE: ELM //80 00

8 ev : Changed to copperweld ground and corrections. Washer, Sq. Flat 5/8" x /4" x /4" (/4" For TH) Bolt, Machine 5/8" x 4" Galv. DESCIPTION (/4" For TH) Washer, Lock, Spring, Double Coil 5/8" (/4" For TH) POLE MOUNTED TANSFOME AND CUTOUT ON POLE ADDITIONAL MATEIAL ADDITIONAL MATEIAL QTY. 4 Wildlife Guard, Transformer Bushing Cutout 00 Amp. Clamp Hot Line, GP0 Conductor, Wire Cu /C #4 7ST, Insulated, ed Wildlife Guard, Cutout (Non-loadbreak), Gray Ground od 5/8" x 8' Ground od Clamp, 5/8", Bronze, Small Conductor, Copperweld #4 Connector, Cabelock YP6 AU Al/Cu /0 - # ST Staple, Ground Wire, Barbed, Galv., /" DESCIPTION S/N Connector, Crimpet, Cu 6/4-4/4 (4C4) 450 CO00 DESCIPTION Cutout Pole-mount Bracket Machine Bolt 5/8" x 0" Galv. Washer, Flat ound Galv. /" Washer, Square Flat 5/8" x /4" x /4" Washer, Spring 5/8" Screw, Lag /" x " Drive Point DESCIPTION N CO T QTY. EVISIONS DATE ENG /0 EDAWN IN CAD //0 CM AH 5// KJP S/N CO N CO TH of T,TH T APP: DATE: ELM //80 00

9 '-6" Minimum Note: See Std. T5 for service connections 4 0 Notes:. Use pre-drilled holes for transformers insuring that tank does not rest on neutral.. Fuse per Std. F.. Call for hot line stirrup separately: 4. 75KVA and larger use T4H. WIE SIZE S/N #6 SLD-#6 ST Cu 8 #4-/0 Al/Cu 9 97 MCM Al/Cu MCM Al/Cu 4 ev : Changed to copperweld ground and corrections. POLE MOUNTED TANSFOME AND CUTOUT ON COSSAM EVISIONS DATE ENG 0 /0 EDAWN IN CAD //0 CM AH 5// KJP of T4,T4H T4 APP: DATE: ELM //80 00

10 ev : Changed to copperweld ground and corrections. Bolt, Machine 5/8" x 4" Galv. Washer, Lock, Spring, Double Coil 5/8" Washer, Sq. Flat 5/8" x /4" x /4" DESCIPTION (/4" For T4H) (/4" For T4H) (/4" For T4H) POLE MOUNTED TANSFOME AND CUTOUT ON COSSAM QTY. 4 Wildlife Guard, Transformer Bushing Cutout 00 Amp. Clamp Hot Line, GP0 Conductor, Wire Cu /C #4 7ST, Insulated, ed Wildlife Guard, Cutout (Non-loadbreak, Gray) Ground od 5/8" x 8' Ground od Clamp, 5/8", Bronze, Small Conductor, Copperweld #4 Connector, Cabelock YP6 AU Al/Cu /0 - # ST Staple, Ground Wire, Barbed, Galv., /" DESCIPTION S/N Connector, Crimpet, Cu 6/4-4/4 (4C4) 450 CO00 DESCIPTION N 6 0 T4 ADDITIONAL MATEIAL ADDITIONAL MATEIAL QTY. EVISIONS DATE ENG 0 /0 EDAWN IN CAD //0 CM AH 5// KJP S/N CO N 6 0 T4H of T4,T4H T4 APP: DATE: ELM //80 00

11 4" 8" '-0" '-0" 8" 4" 4 6 7'-0" Connect case ground to lighter transformer neutral bushing (#4 Cu) 4 5 Lighter Power Lighter Ground Corsett Power Pull ground strap off Notes:. See chart for maximum weight on poles.. The lighter pot should always be connected to the leading phase.. Ground H bushing on all two-bushing transformers. 4. Use pre-drilled holes for transformers insuring that tank does not rest on neutral. 5. All tanks to be grounded. 6. For transformer secondary lead sizes, see Std. TL. 7. For secondary connections see the "TC" series of drawings. 8. Call out on drawing as follows: T-0-7 / CLASS 4 MAX WEIGHT 750lbs 00lbs 4000lbs Transformer sizes 9. Maximum motor size shall be hp. 0. Fuse per Std. F.. Call for hot line stirrup separately: WIE SIZE S/N #6 SLD-#6 ST Cu 8 #4-/0 Al/Cu 9 97 MCM Al/Cu MCM Al/Cu 4 ev : Changed to copperweld ground. COSSAM CONSTUCTION TWO TANSFOMES OPEN WYE PIMAY of T T EVISIONS DATE ENG /0 EDAWN IN CAD //0 CM AH 5// KJP APP: ELM DATE: //80 00

12 ev : Changed to copperweld ground. 4 5 Connector, Crimpet, Cu 6/4-4/4 (4C4) Mount, Triple Cluster Transformer Screw, Lag /" x 4 /" Bolt, Machine 5/8" x 6", Galvanized Washer, Square, Flat 5/8" x /4" x /4" DESCIPTION 6 Wildlife Guard, Tranformer Bushing 7 Bolt /" x /" Stainless Steel 8 Nut /" Silicon Bronze 9 Washer, Flat, /" Stainless Steel COSSAM CONSTUCTION TWO TANSFOMES OPEN WYE PIMAY of T T APP: DATE: ADDITIONAL MATEIAL 0 Washer Lock, /" Stainless Steel 407 CO00 () DESCIPTION Cutout 00 Amp. Clamp Hot Line, GP0 Conductor, Wire Cu /C #4 7ST, Insulated, ed Wildlife Guard, Cutout (Non-loadbreak), Gray Ground od 5/8" x 8' 6 Ground od Clamp, 5/8", Bronze, Small Conductor, Copperweld #4 Connector, Cabelock YP6 AU Al/Cu /0 - # ST Staple, Ground Wire, Barbed, Galv., /" DESCIPTION QTY. 0 EVISIONS DATE ENG S/N /0 EDAWN IN CAD //0 CM AH 5// KJP N 6 0 T ELM //80 00

13 '-0" 8 9 '-0" Connect case ground to lighter transformer neutral bushing (#4 Cu) 4 5 Lighter Power 7'-0" Lighter Ground Corsett Power Pull ground strap off 7 Notes:. See chart for maximum weight on poles.. The lighter pot should always be connected to the leading phase.. Ground H bushing on all two-bushing transformers. 4. Use pre-drilled holes for transformers insuring that tank does not rest on neutral. 5. All tanks to be grounded. 6. For transformer secondary lead sizes, see Std. TL. 7. For secondary connections see the "TC" series of drawings. 8. Call out on drawing as follows: T-0-7 / Transformer sizes 9. Maximum motor size shall be hp. 0. Fuse per Std. F.. Call for hot line stirrup separately: WIE SIZE S/N ev : Changed to copperweld ground. #6 SLD-#6 ST Cu 8 #4-/0 Al/Cu 9 97 MCM Al/Cu MCM Al/Cu 4 TWIGGY CONSTUCTION TWO TANSFOMES OPEN WYE PIMAY of T T CLASS 4 APP: DATE: MAX WEIGHT 750lbs 00lbs 4000lbs EVISIONS DATE ENG /0 EDAWN IN CAD //0 CM AH 5// KJP ELM //80 00

14 ev : Changed to copperweld ground Connector, Crimpet, Cu 6/4-4/4 (4C4) Mount, Triple Cluster Transformer Screw, Lag /" x 4 /" Bolt, Machine 5/8" x 6", Galvanized Washer, Square, Flat 5/8" x /4" x /4" Cutout 00 Amp. Clamp Hot Line, GP0 Conductor, Wire Cu /C #4 7ST, Insulated, ed Wildlife Guard, Cutout (Non-loadbreak), Gray Ground od 5/8" x 8' Ground od Clamp, 5/8", Bronze, Small Conductor, Copperweld #4 DESCIPTION Connector, Cabelock YP6 AU Al/Cu /0 - # ST Staple, Ground Wire, Barbed, Galv., /" DESCIPTION Wildlife Guard, Tranformer Bushing Bolt /" x /" SS Nut /" Silicon Bronze Washer, Flat, /" SS DESCIPTION TWIGGY CONSTUCTION TWO TANSFOMES OPEN WYE PIMAY of T T APP: DATE: ADDITIONAL MATEIAL Washter Lock, /" SS 407 CO DESCIPTION Bolt, Machine 5/8" x 6" Washer, Sq. Flat 5/8", /4" x /4" Arm, Cross (Distr.) 8', /4" x 4 /4" Brace, Crossarm 8" Bolt, Carriage /8" x 5" Galv. Screw, Lag /" x 4 /" Washer, Curved, Square, Cast, " x " x /8" Think x /6" Hole Gain, Pole Plastic Washer, Spring, 5/8" QTY. 7 CO00 () 0 EVISIONS DATE ENG /0 EDAWN IN CAD //0 CM AH 5// KJP N T S/N ELM //80 00

15 '-0" 4" '-0" '-0" '-8" 8 9 4" '-0" Ground Corsett 7 6 Notes: 5 8. See chart for maximum weight on poles.. To determine the total transformer weight take three times the weight of the heaviest.. Ground the H bushing on all two-bushing transformers. 4. All tanks to be grounded. 5. For transformer secondary lead sizes, see Std. TL. 6. For secondary connections see the "TC" series of drawings. 7. Call out on drawing as follows: T CLASS 4 MAX WEIGHT 750lbs 00lbs 4000lbs Transformer sizes 8. Use pre-drilled holes for transformers insuring that tank does not rest on neutral. 9. Fuse per Std. F 0. Call for hot line stirrup separately: WIE SIZE S/N #6 SLD-#6 ST Cu 8 #4-/0 Al/Cu 9 97 MCM Al/Cu MCM Al/Cu 4 ev : Changed to copperweld ground and added clearances to drawing. THEE TANSFOMES GOUNDED Y - GOUNDED Y EVISIONS DATE ENG 7/0 //0 CM AH 5// KJP of T T APP: DATE: ELM //80 00

16 ev : Changed to copperweld ground and added clearances to drawing DESCIPTION Connector, Crimpet, Cu 6/4-4/4 (4C4) Mount, Triple Cluster Transf. Al. Screw, Lag /" x 4 /" Bolt, Machine 5/8" x 6", Galv. Washer, Sq. Flat 5/8" x /4" x /4" Wildlife Guard, Transformer Bushing Bolt /" x /" Stainless Steel Nut /" Silicon Bronze Washer, Flat, /" Stainless Steel Washer Lock, /" Stainless Steel Bolt, Machine 5/8" x 6" Washer, Sq. Flat 5/8", /4" x /4" Arm, Cross (Distr.) 8', /4" x 4 /4" Brace, Crossarm 8" Bolt, Carriage /8" x 5" Galv. Screw, Lag /" x 4 /" Gain, Pole Plastic Ground od 5/8" x 8' 5 Ground od Clamp, 5/8", Bronze, Small Conductor, Copperweld #4 Connector, Cabelock YP6 AU Al/Cu /0 - # ST Staple, Ground Wire, Barbed, Galv., /" DESCIPTION Washer, Curved, Square, Cast, " x " x /8" Think x /6" Hole Washer, Spring, 5/8" Cutout 00 Amp. Clamp Hot Line, GP0 Conductor, Wire Cu /C #4 7ST, 600V, Insulated, ed Wildlife Guard, Cutout, Non-loadbreak, Gray DESCIPTION DESCIPTION THEE TANSFOMES GOUNDED Y - GOUNDED Y EVISIONS DATE ENG 7/0 QTY. //0 CM AH 5// KJP T ADDITIONAL MATEIAL S/N CO 547 N CO00 () * of T T APP: DATE: ELM //80 00

17 '-0" 4" '-0" '-0" '-8" 8 9 4" '-0" Lighter Power Power Lighter Power Ground Corsett 4 Notes: 5. See chart for maximum weight on poles.. To determine the total transformer weight take three times the weight of the heaviest.. All tanks to be grounded. 4. For transformer secondary lead sizes, see Std. TL. 5. For secondary connections see the "TC" series of drawings. 6. Call out on drawing as follows: T CLASS 4 MAX WEIGHT 750lbs 00lbs 4000lbs Transformer sizes 7. Use pre-drilled holes for transformers insuring that tank does not rest on neutral. 8. Fuse per Std. F. 9. Call for hot line stirrup separately: WIE SIZE S/N #6 SLD-#6 ST Cu 8 #4-/0 Al/Cu 9 97 MCM Al/Cu MCM Al/Cu 4 ev : Changed to copperweld ground and added clearances to drawing. THEE TANSFOMES CLOSED Δ - CLOSED Δ EVISIONS DATE ENG 7/0 //0 CM AH 5// KJP of T T APP: DATE: ELM //80 00

18 ev : Changed to copperweld ground and added clearances to drawing Connector, Crimpet, Cu 6/4-4/4 (4C4) Bolt, Machine 5/8" x 6" Washer, Sq. Flat 5/8", /4" x /4" Arm, Cross (Distr.) 8', /4" x 4 /4" Brace, Crossarm 8" Bolt, Carriage /8" x 5" Galv. Screw, Lag /" x 4 /" Gain, Pole Plastic 0 Wire, Tie, AL Annealed #4 SD 0 0 N DESCIPTION 4 5 Mount, Triple Cluster Transf. Al. Screw, Lag /" x 4 /" Bolt, Machine 5/8" x 6", Galv. Washer, Sq. Flat 5/8" x /4" x /4" Wildlife Guard, Transformer Bushing Bolt /" x /" Stainless Steel Nut /" Silicon Bronze Washer, Flat, /" Stainless Steel Washer Lock, /" Stainless Steel Ground od 5/8" x 8' Ground od Clamp, 5/8", Bronze, Small DESCIPTION Washer, Curved, Square, Cast, " x " x /8" Think x /6" Hole Washer, Spring, 5/8" Cutout 00 Amp. Clamp Hot Line, GP0 DESCIPTION Conductor, Wire Cu /C #4 7ST, 600V, Insulated, ed Wildlife Guard, Cutout, Non-loadbreak, Gray Insulator, Pin, C Neck Pin, Adapter DESCIPTION Washer, Curved, Square, Cast, " x " x /8" Thick x /6" Hole Bolt, Double Arm, 5/8" x 6" Washer, Spring, 5/8" Washer Lock, 5/8" Conductor, Copperweld #4 DESCIPTION Connector, Cabelock YP6 AU Al/Cu /0 - # ST Staple, Ground Wire, Barbed, Galv., /" THEE TANSFOMES CLOSED Δ - CLOSED Δ EVISIONS DATE ENG 7/0 QTY. 407 CO //0 CM AH 5// KJP T ADDITIONAL MATEIAL 6 S/N CO00 () * P0TEE of T T APP: DATE: ELM //80 00

19 TOP VIEW MAXIMUM LOADING,75 POUNDS PE POSITION Notes:. Band extensions are for use with large poles and large transformers.. Adjust all DA bolts as needed to provide adequate space between transformers.. For 67KVA and larger transformers, S/N 76 adapter plate is needed. SIDE VIEW ev : Corrected loading weight and drawing, and added Note #. Mount, Triple Cluster, Aluminum Extension, Band Bolt, DA /4" x 8" (Cut If Necessary) DESCIPTION CLUSTE MOUNT WITH BAND EXTENSIONS T EVISIONS DATE ENG //0 CM AH of T4 T4 APP: DATE: GGW 9/85 00

20 LINE LOAD INSTALLATION POCEDUE:. Cut in breaker between point "A" & "B" while keeping circuit closed with a jumper. Install C/O fused just above line current at "C". Close C/O and remove jumper.. Install slugged C/O at "D", leave open and connect primary leads to line and transformer.. Connect other side of high voltage winding to the line. 4. Install leads from secondary side of transformer to points "A"&"B" as required by desired installation. 5. epeat procedure for other side. 6. Close C/O at "D" which blows fuse at "C". 7. emove C/O at "C". 8. Jumper out C/O at "D" and remove. EMOVAL POCEDUE:. Install fused C/O at "D". Use transformer size fuse.. Install slugged C/O at "C", -leave open.. epeat procedure for other side. 4. CLose C/O at "C" which blows fuse at "D". Transformers are now out of circuit but still HOT. 5. emove transformer secondary leads at points "A"&"B". 6. emove primary leads. Transformers are now dead. 7. emove breaker between points "A"&"B" or install jumper. 8. emove C/O at "C". Notes:. For Ø installations follow same procedure.. When it is desireable to leave bank in for future use, stop at step 4 of removal procedure. CAUTION. When C/O's are left in the circuit they must be slugged.. Do not open "D" when "C" is open.. Install case ground before energizing bank. WANING: The transformer should not be fused or have any device by which it can be readily disconnected. The primary must never be opened while the secondary position carries current, as dangerous voltages will be induced by the series winding. Ø & Ø, WINDING BOOST O BUCK TANSFOME BANK INSTALLATION & EMOVAL POCEDUE of TCA TCA EVISIONS DATE ENG /0 EDAWN IN CAD APP: ELM DATE: //80 00

21 0V 0V 40/480 40/480 40/480 Notes:. Extend case ground wire to secondary neutral bushing on lighter transformer only.. For Ø wire omit neutral installation and secondary grounds. Ø OPEN DELTA FO 0/40 Ø 4-WIE, 40 Ø -WIE, 480V Ø -WIE of TC TC EVISIONS DATE ENG /0 EDAWN IN CAD APP: ELM DATE: //80 00

22 Y-PIMAY (4 WIE) 0V 0V 40/480 40/480 40/480 Notes:. Extend case ground wire to secondary neutral bushing on lighter transformer only.. For Ø wire omit neutral installation and secondary grounds. Ø OPEN-WYE OPEN-DELTA FO 0/40 Ø 4-WIE, 40 Ø -WIE, 480V Ø -WIE of TC4 TC4 EVISIONS DATE ENG /0 EDAWN IN CAD APP: ELM DATE: //80 00

23 0V 0V 40/480 40/480 40/480 Notes:. Extend case ground wire to secondary neutral bushing on lighter transformer only.. For Ø wire omit neutral installation and secondary grounds. Ø DELTA-DELTA FO 0/40 Ø 4-WIE, 40 Ø -WIE, 480V Ø -WIE of TC5 TC5 EVISIONS DATE ENG /0 EDAWN IN CAD APP: ELM DATE: //80 00

24 ACCEPTABLE ANGE OF LIGHTE %Z LIGHTE %Z EXAMPLE: POWE TANSFOMES Z =.0% LIGHTE CAN BE FOM.0 TO.75% %Z POWE TANSFOMES Notes:. Voltages and tap position must match on all three transformers.. Impedances should be matched. If not, the lighter may have up to 5% higher impedance than either power transformer.. If the impedances in note can not be obtained, go to the next larger KVA. 4. If a power transformer must be replaced it must match the existing unit. If this is not possible then replace both transformers. Ø DELTA-DELTA CLOSED BANKS FO 0/40 Ø 4-WIE, 40 Ø -WIE, 480V Ø -WIE of TC5A TC5A EVISIONS DATE ENG /0 EDAWN IN CAD APP: ELM DATE: //80 00

25 0/77 0/77 0/77 08/480 08/480 08/480 Y-SECONDAY (4 WIE) Notes:. Extend case ground wire to secondary bushing.. Use transformers with 77V secondary rating to obtain 77/480V. Ø DELTA WYE FO 0/08 O 77/480V SEVICE EVISIONS DATE ENG /0 of TC6 TC6 EDAWN IN CAD APP: ELM DATE: //80 00

26 Y-SECONDAY (4 WIE) 0/77 0/77 0/77 08/480 08/480 08/480 Y-SECONDAY (4 WIE) Notes:. Extend case ground wire to secondary bushing.. Use transformers with 77V secondary rating to obtain 77/480V. Ø WYE WYE FO 0/08 O 77/480V SEVICE EVISIONS DATE ENG /0 of TC7 TC7 EDAWN IN CAD APP: ELM DATE: //80 00

27 40/480 40/480 40/480 Notes:. Float primary neutral free to grounds. Use -bushing transformers only. Ø WYE DELTA FO 40V Ø -WIE 480V Ø -WIE of TC8 TC8 EVISIONS DATE ENG /0 EDAWN IN CAD APP: ELM DATE: //80 00

28 H X H X H X X X X H H H H H H X X X H H H H H H H H H H H H H H H H H H H H H H H H H H H X X X X X X X X X X X X X X X X X X X X X X X X H H H H H H H H H H H H H H H H H H H H H H H H H H H X X X X X X X X X X X X X X X X X X X X X X X X X X X H H H H H H H H H H H H H H H H H H H H H H H H H H H X X X X X X X X X X X X X X X X X X X X X X X X H H H H H H H X X H X H H H H H H H H H H H H H H H H H H H X X X X X X X X X X X X X X X X X X X X X X X X X X X H X X H H X H H H H H H H H H X X X X X X X X X H H H N.E.M.A STANDADS FO Ø TANSFOME POLAITY MAKING.. Additive polarity is standard for all Ø transformers in sizes 00KVA and below having high voltage ratings 8660 volts and below.. Subtractive polarity is standard for all other Ø transformers. H H H H H H X X X X X X = SUBTACTIVE POLAITY = ADDITIVE POLAITY X X X H H H H H H H H H X X X X X X X X X H H H H H X X H H X X H H X X X X X Ø TANSFOME CONNECTIONS EVISIONS DATE ENG 0 6/4/0 of TC0 TC0 0 EDAWN IN CAD APP: ELM DATE: //80 00

29 H X X H X H X X H H X H H X X H H X H H H H H H H H H H H H H H H H H H H H H H H H H H H X X X X X X X X X X X X X X X X X X X X X X X X X X X H H H H H H H H H H H H H H H H H H H H H H H H X X X X X X X X X X X X X X X X X X X X X X X X X X X H H H H H H H H H H H H H H H H H H H H H H H H X X X X X X X X X X X X X X X X X X X X X X X X X X X H H H H H H H H H H H H H H H H H H H H H H H H X X X X X X X X X X X X X X X X X X X X X X X X X X X H X H H X X H H H H H H H H H X X X X X X X X X H H H N.E.M.A STANDADS FO Ø TANSFOME POLAITY MAKING.. Additive polarity is standard for all Ø transformers in sizes 00KVA and below having high voltage ratings 8660 volts and below.. Subtractive polarity is standard for all other Ø transformers. H H H H H H X X X X X X = SUBTACTIVE POLAITY = ADDITIVE POLAITY X X X H H H H H X X H H X X H H X X X X X H H H H H X X H H X X H H X X X X X Ø TANSFOME CONNECTIONS EVISIONS DATE ENG 0 6/4/0 of TC TC 0 EDAWN IN CAD APP: ELM DATE: //80 00

30 TANSFOME SIZE KVA (BANK) /O VOLTAGE CHAT MAX 0V 40V 77V 480V EYEBOLT 0V 0V/40V 77V/480V 480V SIZE 0V/08V 40V SPADE SPADE COPPE WIE SIZE /O 4/O 50-4/O /O 4/O /O 4/O /O /O CLOSED WYE CONNECTION OPEN Ø Ø Ø Ø Ø Ø GOUNDING BUS SAME SIZE AS Ø WIES SIZE WIE TO LIGHTE TANSF CONNECT SEVICE GD. WIE (NEUTAL) TO GD'G. BUS SIZE WIE TO POWE TANSF Notes:. Transformer loading based on 0% of Nameplate KVA.. Wire ampacity based on 90 degree Celsius (the maximum insulation temperature). Summer loading (eference ). See eference Section 000, Standard 08.0 for larger bank sizes. 4. All high side jumpers 4AWG ED covered wire. 5. See eference Section 000, Standard 0.0 for secondary riser wire sizes. ev : Corrected 0v Ø conductor size for 0kVA Ø bank. TANSFOME LEAD SIZES OVEHEAD SECONDAY EVISIONS DATE ENG //00 HWH MA /4/09 KJP of TL TL APP: DATE: ELM //80 00

31 480 VOLTS DELTA PHASE BANK COPPE WIE SIZE PE BUSHING 500KVA 750KVA 000KVA 00KVA -50-4/ BAID SIZE -800 AMP -800 AMP -800 AMP -800 AMP 480 Y/77 GOUNDED WYE COPPE WIE SIZE PE BUSHING INCLUDING NEUTAL ALUMINUM WIE SIZE PE BUSHING INCLUDING NEUTAL -4/0-50 * * ALL BUSHING CONNECTIONS SHALL BE MADE WITH COPPE COMPESSION SPADE TEMINALS. STOCK NUMBES AE: 4/ #44 #46 #76 CONNECT SEVICE CONDUCTOS TO TANSFOME SPADES WHEE EVE POSSIBLE. IF NOT, CONNECT SEVICE CONDUCTOS TO TANSFOME LEADS WITH COMPESSION CONNECTOS. SEE SHEET OF. * USE COPPE LEADS AND CONNECT ALUMINUM SEVICE CONDUCTOS TO COPPE LEADS WITH COMPESSION CONNECTOS. LEAD SIZES AE BASED UPON ATINGS IN IEEE S-5, PAGE CHANGE TO EFLECT OH JUMPES LAGE TANSFOME LEAD SIZE - OVEHEAD EVISIONS DATE ENG //00 HWH MA EFLECT OH JUMPES APP: of TL TL DATE: 4/9 00

32 40 VOLTS DELTA PHASE BANK 500KVA 750KVA 000KVA COPPE WIE SIZE PE BUSHING BAID SIZE -800 AMP -800 AMP -800 AMP 08 Y/0 VOLTS COPPE WIE SIZE PE BUSHING BAID SIZE -500 () () AMP -800 AMP -800 AMP NOTES: () 750 COPPE EQUIES BONZE BOLT TYPE SPADE CONNECTOS SUCH AS SHOWN BELOW. FAGO# J7A4N J7A4N 4J7A4N LAGE TANSFOME LEAD SIZE - OVEHEAD EVISIONS DATE ENG //00 HWH MA EFLECT OH JUMPES APP: of TL TL DATE: 4/9 00

33 DELTA WYE PEFEED (COPPE LEADS) (COPPE O ALUMINUM SEVICE) PEFEED (ALL ALUMINUM) COPPE ALTENATE (COPPE LEADS) (COPPE O ALUMINUM SEVICE) ALUMINUM O COPPE ALTENATE FLAT WASHE BOLT LOCK WASHE NUT COMPESSION CONNECTIONS AT BUSHINGS BONZE BOLT TYPE CONNECTIONS AT BUSHINGS NOTES:. All Aluminum-to -Copper connections must be made so that water will run from the aluminum toward the copper.. Use oxide inhibitor at all connections. LAGE TANSFOME LEAD SIZE - OVEHEAD EVISIONS DATE ENG //00 HWH MA EFLECT OH JUMPES APP: of TL TL DATE: 4/9 00