www. ElectricalPartManuals. com INSTRUCTIONS Westinghouse 1. L C

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Westinghouse 1. L 42-201.3C NSTALLATON OPERATON MANTENANCE NSTRUCTONS SWTCHBOARD WAlTHOUR METERS TYPES D2B-2F; D2B-7F AND D2B-8F N FT -21 FLEXTEST CASE Fig. 1. FT-27 Case. Fig. 2. 028 Chassis.

1 Westinghouse 1. L C NSTALLATON OPERATON MANTENANCE NSTRUCTONS SWTCHBOARD WAlTHOUR METERS TYPES D2B-2F; D2B-7F AND D2B-8F N FT -21 FLEXTEST CASE Fig. 1. FT-27 Case. Fig Chassis. APPLCATON CHART METER TYPE NUMBER OF ST A. TORS CRCUT A.PPLCA. TON D2B-2F 2 2- or 3-Phase, 3-Wire 3-Phase, 4-Wire Delta 3-Phase, 4-Wire Wye D2B-7F 2 3-Phase, 4-Wire Delta D2B-8F 2 3-Phase, 4-Wire Wye P.F. LOOP S ENCLOSED N PLASTC TUBE BEHND FRAME SUPERSEDES.L EFFECTVE JULY 1967

2 TYPE 028 FLEXTEST SWTCHBOARD METERS --- GENERAL The meter elements are mounted on a rem ova b 1 e chassis, which is held in th case by two latches. All connections between the case and the chassis are made through the test switches. Automatic shorting switches are provided on all current circuits to prevent opening current transformers when testing or removing the chassis. For testing, leads can be clipped to the test lugs above the chassis jaws and on the switch blades. Two test plugs are available to facilitate calibration of these meters. A 10-circuit plug is inserted into the chassis jaws and is provided with binding post terminals for connections to the test circuit. Current me a sure me n t s are made by connecting ammeters to a current circuit test plug, which is then inserted into the current switch assembly, between the chassis and the case. The hardware s u p p 1 i e d with the meter permits semi-flush mounting on panels up to 3/16 inch thick. For projection mounting on panels thicker than 3/16 inch, special hardware is furnished upon request (specify panel thickness). Provisions have been made on all FT-21 cases for convenient field installation of either 2- or 3-wire pulse initiators. Removal of three knockouts (located in the back of the case, near the top) will permit installation of an output terminal-block and pin assembly. A mating bracket and socket assembly is then attached to the meter frame and latch assembly. The output circuits will be closed by inserting the meter frame and latch assembly into the case. All necessary parts are available in kit form for each type of pulse initiator. t is not practical to make a field installation of type CD-21 because a special disk is required. CALl BRA TON All meters are calibrated on single phase. The basic watt hour constant (K h ) for these meters is.6 per nominal 600 watt rating. The single-phase test speed is 16 2/3 rpm except for the D2B-8, which is 22 2/9 rpm. Both of these are given on a 120-volt basis. 2 The following 1s a guide to watthour stator calibration. Detailed calibration procedure is available in L ADJUSTMENTS Full Load, Light Load and Balance All of these adjustments are made at the front of the meter. The full load adjuster knob is in the center; the light load knob at the left; and the balance knob at the right. Direction of adjustment is indicated by the arrow on the nameplate ("F" indicates fast). Power Factor Power factor adjustment is made by changing the r e s i s tan c e of the soldered loop located at the back of each electromagnet. ncreasing the resistance (lengthening the loop) increases the speed on lagging power factors. REPLACEMENT PARTS AND REPARS Where facilities are limited or where only a small number of meters are used, it is recommended that the meters be returned to the factory for repairs. When returning a meter for repairs, obtain a Returned Material Tag for the District Office so as to avoid delay in identifying the shipment. GENERAL DATA COMBNED STATORS OF S. AMP VOLT- 60 CYCLE METERS TYPE 02B-2F 028-SF STARTNG WATTS WAlTHOUR CONSTANT (Kh) FULL LOAD R.P.M. ON SNGLE PHASE TEST FOR TRANSFORMER BURDENS SEE THE TABLE ON PAGE /3 22 2/9

3 TYPE D2B FLEXTEST SWTCHBOARD METERS _.L_._4_2-_20_1_.3_ C c type FT-U case dimensivna panel cutout dimensions terminal and mounting hardware front view aide view aemi fluah projection TRANSFORMER BURDENS FOR 60-CYCLE METERS VOLT AGE COl L Cl RCU TS, NCLUDNG P.l. LAMP. FOR RATED MULTPLES OF 120. V. 411 R 4 LJ.. "--j--' t 0 0 Fig. 3. Mounting of FT-21 Case. VOL T-AMPS. WATTS POWER FACTOR CURREN T COL CRCUTS EAOt FULL HALF STATOR COL COL 5. AMPS. ON 5. AMP. COL. VOL T-AMPS WATTS POWER FACTOR AMPS. ON 2.5 AMP. COL. EACH STATOR VOLT-AMPS WATTS z CRC POWER FACTOR li2... '1CRCUT CLDSNG Of: VCE,7cultlt[NT TEST } "'ACK L for semi-flush mounting _,90-32wo --panel VOLTAGE TRANSFORMER CONNECTON ELOW Fig. 4. REAR VEW TyDe D2B-2F, 3-Phose, 3-Wire 1-18 screw (far thick panel use i\ -18 stud) screw (for thick panel use stud) UT(NAL JUPfltl to-..., 3

4 TYPE D2B FLEXTEST SWTCHBOARD METERS... CAC,JlT CLDSNG 1 Q[V((,1 CURfi NT f[sf JA(C NEUT"AL Fig. 5. lrotot[ SWTCHES CRCUT CLOSNG OP[AAT 0 T T(S T SWTCH HANDLE 1!11 ALSO BY REMOVAL (litutnal -- J 9-5 VOLTAGE TRANSFORMER CONNECTON BE LO W : [Jlf REAR VEW J 01'" CHASSS JUMPERS Type D2B-2F, 3-Phase, 4-Wire, Delta, CRCUT 0[1t'C[ JACK CLOS "'G,!cuRRUH HST 1f1 1i1 1 1 VOLTAGE TRANSFORMER CONNECTON BELOW Fig. 7. rff_: _j' t'j -vw--- t:: [1 F=:-1 REAR VEW NEUTRAL!!EYT!Ub DfMAND MOTOR 5o 'f AfTQR "A'H(N USf!l NOT CRCUT CLOSNG SW' (H( S OP[RAT 0 8Y HST SWTCH H.ll.llo'Dl[ 8.LSO BY REMOVAl OF CHASSS fll TfRNAL 7-'1 - OfMANO -CONTACTS- -:!:.- Type D28-7F, 3-Phase, 4-Wire, Delta WESTNGHOUSE METER DVSON -( R( Jol ) VOLTAGE TRANSFORMER CON NECTON BELOW f [ }. : ==: Fig. 6. OFY'C( CtOSHG.r('J:UH'"t Tf ST 1 JACM VOLTAGE =± REAR VEW NEUTRAL Type D2B-2F, 3-Phase, 4- Wire, Wye. i[) D[MANO K TRA NSFORMER CON NECTON - r-- - J" ' FJ77?7 === Fig. 8. ELECTRC OEM.lNO WOTOR 1!11 R,1 TQR WH[N USED NOTE Q[,ANO MOTOR 8 REACTOR LEADS CONNECTED ACROSS - 5 FOR 12 VOLT SERVCE NOTE CRCUT CLOS.. G SWTCHES OP(RAT 0 8T TEST SWTCH H"l'oiOL[ 8 Al- SO 8T REMOVAL Of CHASSS 1(f[RNAL t T- S, 10 2 BELOW.! JUMPERS NlUTftAL _ REAR VE W Type D2B-8F, 3-Phase, 4-W.ire, Wye CORPORATON RALEGH, N. C Printed in U.S.A.

CASE Fig. 7. FT-27 Case. Fig. 2. 028 Chassis.

5 Westinghouse.L A NSTALLATON OPERATON MANTENANCE NSTRUCTONS SWTCHBOARD WAlTHOUR METERS TYPES D2B-2F; D2B-7F AND 028-SF N FT-21 FLEXTEST CASE Fig. 7. FT-27 Case. Fig Chassis. APPLCATON CHART METER TYPE NUMBER OF STATORS CRCUT APPLCATON D2B-2 F 2 2, or 3-phose, 3 wire 3-phose, 4 wire Delta 3-phase, 4 wire Wye D2B-7 F 2 3-phase, 4 wire Delta D2B-8 F 2 3-phase, 4 wire Wye SUPERSEDES. L P F LOOP 5 ENCLOSE: \ PLASTC - -=E BEHND F=.:.v.:,::: EFFECTVE JULY 1963

7 "' TYPE D2B FLEXTEST SWTCHBOARD METERS -- GENERAL The meter elements are mounted on a removable chassis, which is held in the case by two latches. All connections between the case and the chassis are made through the test switches. Automatic shorting switches are provided on all current circuits to prevent opening current transformers when testing or removing the chassis. For testing, leads can be clipped to the test lugs above the chassis jaws and on the switch blades. Two test plugs are available to facilitate calibration of these meters. The 10-circuit plug is inserted into the chassis jaws and is provided with binding post terminals for connections to the test circuit. Current measurements are made by connecting ammeters to a current circuit test plug, which is then inserted into the current switch assembly, between the chassis and the case. The mounting hardware supplied with the meter permits either projection or semi-flush on panels up to 3/16" thick. For projection mounting on panels thicker than 3/16" special hardware is furnished on request. Provisions have been made on all FT-21 cases for convenient field installation of either 2 or 3 wire contact devices. Three knockouts located on the back of the case (close to the top) when removed, allow a molded insulation block, with two or three terminals and male plugs, to be fastened to the case. A bracket, with the proper number of female sockets, can be attached to the rear of the meter-frame & latch assembly in the proper position to allow the male and female parts to mate when the meter is inserted in the case. The parts are available in kit form for this application. CALl BRA Tl ON All meters are calibrated on single phase. The basic watthour constant (K h ) for these meters is.6 per nominal 600 watt rating. The single-phase test speed 16-2/3 rpm except for the D2B-8 for which it is 22-2/9 rpm. Both of these are given on a 120 volt basis. The following is a guide to watthour stator calibration. Detailed calibration procedure is available in L ADJUSTMENTS Full Load, Light Load and Balance. All of these adjustments are made at the front of the meter. The full load adjuster knob is in the center; knob the light load knob at the left and the balance at the right. Direction of adjustment is indicated by the arrow on the nameplate ("F" indicates fast). Power Factor Power factor adjustment is made by changing the resistance of the soldered loop located at the back of each electromagnet. ncreasing the resistance (lengthening the loop) increases the speed on lagging power factors. REPLACEMENT PARTS AND REPARS Where facilities are limited or where only a small number of meters are used, it is recommended that the meters be returned to the factory for repairs. When returning a meter for repairs, obtain a Returned Material Tag from the District Office so as to avoid delay in identifying the shipment. GENERAL DATA COMBNED STATORS OF 5. AMP VOLT- 60 CYCLE METERS TYPE 02B-2F D2B-8F STA RTNG WATTS WATTHOUR CONSTANT FULL LOAD R.P.M. ON SNGLE PHASE TEST (Kh) FOR TRANSFORMER BURDENS SEE THE TABLE ON PAGE /3 22-2/9

9 TYPE D2B FLEXTEST SWTCHBOARD METERS L_L_. _42-_20::..:..;.: A 31...:..;..:. caae type FT-21 case dimensions panel cutout dimensions terminal and ,-----f mountinghardware front view side view semi-flush projection TRANSFORMER BURDE NS FOR 60 CYCLE METERS VOLT AGE COl L Cl RCU TS, NCLUD NG P.l. LA MP. FOR RATED MULTPLES OF 120. V. E\,..-o Fig. 3. Mounting of FT-27 Case. VOL T-AMPS. WATTS POWER FACTOR CURRENT COL CRCUTS EACH STATOR 5. AMPS. ON 5. AMP. COL. VOL T-AMPS WATTS POWER FACTOR AMPS. ON 2.5 AMP. COL. EACH STATOR VOL T-AMPS z CRC WATTS POWER FACTOR CRCUT CLOSNG/ DEY CE JcuRAENT TEST JAC< L for semi-flush mounting "0-32 panel VOLTAGE TRANSFORMER CONNECTON BELOW Fig. 4. REAR VEW... Type D28-2F, 3-Phase, 3 Wire. -18 screw (for thick panel use -18 stud) screw (for thick panel use stud) NOTE: Cl RCUT CLOSNG SWTCH $ 0P RATEO 8'1' TEST SWTCH HAHOl.( a ALSO BY R WO'V4L OF CHASSS EXTEJ'U.l JUWP RS 10-"' ''i--3

11 TYf,a:; D2B FLEXTEST SWTCHBOARD METERS -- J!CUT OEVCE CLOSNG j'c:urr[nt TEST JACK NEUTAAL NEUT RAL Fig ,,RCUT CLOSNG DEVCE r L EXTERNAL J - VOLTAGE TRANSFORMER CONNECTON BELOW Jcl ' r -[3[7 RE AR VEW JUMPERS Type D2B-2F, 3-Phase, 4-Wire, Delta, CURRENT TEST JACK L VOLTAGE TRANSFORMER CONNECTON BELOW Fig. 7. _L cf:=:: = - REAR VEW ' J' j' NOTE CRCUT CLOSNG SWTCHES OPERATED BY TEST SWTCH HANDLE tlo ALSO BY REMOVAL Of CHASSS EXTERNAL 'J-7-5 NEUTRAL JUMPERS Type D2B-7F, 3-Phase, 4-Wire, Delta.. RCUll OEVtCE -' CURRENT TEST JACK... CRCUT CLOS!G NOTE: CRCUT CLOSNG SWTCHES OPERATED BY TEST SWTCH HANDLE 6 Al-SO BY RE.OVAL NE JTRAL VOLTAGE TRANSFORMER CONNECTON BELOW fdv---'1' :=::= - FJ7?? : NEUTRAL Fig. 6. DEVCE J CURRENT 1 JACK Cl.'JSHtG TEST REAR VEW OF CHASSS Type D2B-2F, 3-Phase, 4- Wire, Wye. r L VOLTAGE TRANSFORMER CONNECTON p + - -fc:::l =::;-::_.:: - ---' FOR 72 VOLT SER tic NOTE CACUT CLOS""'G SWTCHES OPERATED BY TEST SWTCH HANDLE 6 ALSO BY REWOVAL EXTERNAL 9-7-!1, 10-2 BELOW SZC?? === o::. NEU!ffAL Fig. 8. REAR VEW OF CHASSS JUWPERS - Type D2B-8F, 3-Phase, 4-Wire, Wye WESTNGHOUSE ELECTRC CORPORATON METER DVSON RALEGH, N. C. Printed in U.S.A

www. ElectricalPartManuals. com STBUCTIONS "D" LINE WATTHOUR METER CALIBRATION INFORMATION INSTALLATION OPERATION MAINTENANCE I.L

www. ElectricalPartManuals. com STBUCTIONS D LINE WATTHOUR METER CALIBRATION INFORMATION INSTALLATION OPERATION MAINTENANCE I.L .L. 42-101.3 NSTALLATON OPERATON MANTENANCE NTRO DUCT ON This leaflet is intended to give specific instruc tions for the calibration of Westinghouse watthour meters. Part of this leaflet contains a very