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Summary of Contents for LORAIN RHM800E50

Page 1: ...I I I I I I I I I I 1 I I I I I I I I LORAIN MODEL RHMSOOE50 RECTIFIER SPEC NO 548502500...

Page 2: ...Marconi Communications Inc _ COMMUNICATIONS AND CONTAINS CONFIDENTIAL AND PROPRIETARY INFORMATION OWNED BY MARCONI COMMUNICATIONS ANY COPYING USE OR DISCLOSURE OF IT WITHOUT THE WRlll EN PERMISSION O...

Page 3: ...I Section 2992 Issue July 2000...

Page 4: ...Section 2992 Issue July 2000 Marconi Page 2 of 2 I...

Page 5: ...oltage the temperature compensation module battery connections should also be made to the recti fier side of any battery protective or disconnect devices present CAUTION Turn ofl all rectifirs before...

Page 6: ...mdUained while the r e r is removed frmn service the folIowing considemtions should be made a lf the rectifier is operating in parallel with one or more additional rectifiers can the remaining rectif...

Page 7: ...I Lorain Ohio 44052 2293 I 216 288 1122 n Canada RELTECCanada 122 Edward St St Thomas Ontario N5P 122 519 631 0780 I Mexico Productos brain de MexicoS A de C V Apartado Postal 77001 I Mexico 10 D F M...

Page 8: ...eral 18 AC Input Circuit 16 Power Supply Assembly PSA A8 17 Power Circuit 17 Voltage and Current Regulation Circuitry 17 Voltage Reference and Error Detection 17 Current Sensing and Current Regulation...

Page 9: ...ATUS 2 1 Refer to Table 2 1 for a lff of tools and test equfp ment that is suffffient to perform any test or adjustment procedure detailed in this instructkmmanuaf 3 5 Wiring All wiring and branch cir...

Page 10: ...age and load sharing loop voltage Refer to the ADJUSTMENT section for detailed information 3 12 Remote Eaualize Control The equalize mode of operation can be remotely controlled by providing a Section...

Page 11: ...start To permit restartiig the rectifiir in thff went a customer furnished auxiliary 49 voft power supply may be connected to terminals 1 and 2 of auxiliary power supply tenfnal bfodc TM TBI is locate...

Page 12: ...and the POWER rocker switch to the ON posltn The rectifier should start although the LOW CURRENT ALARM and an extended rectifier fail alarm may be activated 4 Wan for the vonmeter on the rectifier fro...

Page 13: ...ired the float output voltage can be changed by adjusting the FLOAT ADJUST potentiometer accessible through a hole in the front panel of the rectllier Turn the potentiometer adjustment screw slowly cf...

Page 14: ...e Pam 3 21 If an cuuciliary power supply is a connected to TBI refer to Test Procedure 9 in Chapter 7 Tl OUBLESHOOTlNG for a starhlp procedure in this event Controls and Indicators 4 4 The following c...

Page 15: ...a fully charged con dition Page 6 NOTE IJ the current demand by the load exceeds the cur rent limit setting the battery is required tofurnish the dtQI ertce and subsequently begins discharg ing Equal...

Page 16: ...n voltage See Figure 4 1 Al A6 433401600 1 SCR Firing Circuit Card Coolina sense A7 486508700 Regulator 8 Alarm Card 4 13 The rectifier is equipped with cooling fans and temperature sensors mounted on...

Page 17: ...eFmuerDataSheetisnotmcom m e n d e d To obtain float output voftage place the FLOATEQUALIZEswitchintheFLOATposf tion I b 52 Potentiometer FLOAT ADJUST is accessible thmugh a hole on the front panel o...

Page 18: ...required float voltage has been factory adjusted to 54 VDC 24 cells at 2 25W cell The potentiometer setting if changed should be m m done in small increments whentht Jldatvdtageisadfusted theequrdize...

Page 19: ...d Unless otherwise specified the km voftage alamt is factory adjusted for 47 15 VDC To readjust tftii limit observe Me following procedure 8 b Page 12 Turn off the rectifier by operating the POWER swi...

Page 20: ...l DC supply light emktttg diode HIGH VOLTAGE ALARM should extinguish h 0 i W Section 4387 Slowly increase the vottage until light emit ting diode HIGH VOLTAGE ALARM illumi nates Repeat Steps f and g i...

Page 21: ...the BATTERY DISCONNECT liik into its receptacle the immediately place the POWER switch to the OFF position 0 P 4 r Disconnect the test leads ot the external ammeter and resistive load If the rectlfiir...

Page 22: ...p tacle Immediately place the power switch to the OFF position ml n 0 P Section 4387 Disconnect the test load and multimeter leads If the rectffier is normally connected to a battery remove the M opti...

Page 23: ...su late Connect internal voltage sensing leads R Option to terminals l and 2 of lB3 Install M Option capacitor assembly Al0 on circuit card RAG A Connect a test load to the DC output termi nals d e f...

Page 24: ...ed tf rough an LC type filter which reduces the ripple to a minimum The resuftmg fikersd DC output power is connected through the out Section 4387 put fuse and battery disconnect device to the output...

Page 25: ...ing circuit for details Page 18 6 13 Resistor R64 is connected to the cathode of zener diode CR3 When the rectifier is supplying less current ma the current limit settmg of potentiometer R23 the curre...

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Page 27: ...ntil full rated output current is avaflable to the load The current walk in feature ofme rectifier is achieved by suppressing the current regulator reference voltage and allowing it to increase at a f...

Page 28: ...age 22 actuate external dams if connected During normal operation with rectifier output current within limks the base of 08 is connected to common through resistor R43 This causes Q8 to conduct provid...

Page 29: ...Section 4397 atiie battery to the coil of K4 and the cathode of the FUSE ALARM light emitting diode The LED illuminates and contacts of K4 open which deenergizes Kl and K2 When K2 releases its contac...

Page 30: ...ive statements require that the technician perform an adjustment or test to verify certaii operational mndii Page 24 tions If the line of flow terminates in a blodt entitled POSSIBLE CAUSES the servic...

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Page 34: ...y several hundred thou sand ohms approaching 1 megohm Initial high resistance appmaching infffky indf cates an open capacitor lnkial and contin ued low resistance near zero ohms indicates a shorted ca...

Page 35: ...inally 48 VDC If voltage is not present reference leads are open at some point between rectifier and battery Chedc refer ence lead connectiins and collect any faults as required e If no further tests...

Page 36: ...and grounded object when the test equipment is amnected to the recti r while it Lf opemting d Open the meter and control panels by loos ening the captive fasteners e Remove the edge connector from one...

Page 37: ...eatsiik assem blies and power transformer Tl Locate the firing circuit cards Part No 4334 015 W on each heatsink assembly Adjust the vertfcai sensitiifty of an oxillo scope for 0 5 volts per centimete...

Page 38: ...check for an anode to x ode open or short It such a tester is not available the thyristor can be checked by the use of an ohmmeter Tochack for an anode to cathode short measure the resistance from Se...

Page 39: ...or of Regu lator and Alarm Circuit card A7 Close the external AC disconnect device to appiy input power to the rectifier Place the HVSD cinuti breaker toggle and the POWER rocker switch to the ON posi...

Page 40: ...ough out the rectifzer including input contactor R2 Rxercise caution that accidental bodily con tact with m electrical termirtatim does not T a Ensure that HVSD circuk breaker and POWER switch on the...

Page 41: ...AtUllll 4wDc lOAmp I PowersupplyHere I __ A I l I I TBl 1 Figure 7 4 Front Partial View of Rectifier Interior Rear Panel Showing Location of Auxiliary Power Supply Connections Detail Removed for Clari...

Page 42: ...arm added __ Fuse Fl Part No corrected in Table 4 1 183 7087 I Revised to reflect addiiin of HVSD restart circuit and auxiliary low bat tery startup terminals added Test Procedure 9 Pow Products I 112...

Page 43: ...r or the load The circuit is proportioned so that the non adjustable high voltage shutdown point always remains 2 volts above the adjustable setting for 50 volt rectifiers and 1 volt above the adjusta...

Page 44: ...ent procedure 1 02 Refer to Figure 1 for identification outlines of the disc type thyristor and diode The replacement device should be compared to the outline drawing prior to replacement Identify the...

Page 45: ...Section 2968 FIGURE I 9EMlCONOUCTOR lOENllFlCAT0N OUTLINES USC TIR n a msma GCA I I I I Page 2...

Page 46: ...nsure good electrical contact Apply a thin coatinq of thermal joint compound to the mounting surfaces of the replacement remicnductor Section 2966 WARNING tapplymexce dvemamtoftJmmal joint compound on...

Page 47: ...W Zf rmy are connected or reset for normal operation If doubt exists regarding the correct connection necessary refer to the Starting Procedure in the points refer to the equipment wiring diagram appr...

Page 48: ...reflect current instruction format Lorain ProdUCtS I1 122 F Street I Lorain Ohio 44052 2293 I 216 288 l 122 In Canada RELTEC Canada 122 Edward St St Thomas Ontario NSP lZZl 519 631 0780 R E L T E C In...

Page 49: ...t temperature range of 0 C to 50 C Refer to paragraph 1 S 1 C Dynamic For a step load change of 250 amps wlhff the range of 5 to 100 of full load the max imum voltage transient does not exceed 5 of th...

Page 50: ...age at 60 Hz input and 50 vollsoutput 1 3 4 Dhp Facta Diifacement factor is greater than 80 from 40 load to full load at the design center input voftage with 60 Hz input and 50 volts output 13 5 Telep...

Page 51: ...operation A rectifier fafl alarm lndfcatbn supplies positive battery to two alarm circuits and removes positive battery from two alamt circuits with cbsed loop alamts avaflahle as wiring options 6 LO...

Page 52: ...NS and Note 4 10 1 A 11 End Cell Charging The output voltage c8n be increased for chargfng three end ceffs by connectmg the DC output to the end cefls and leaving the external reference feads connecte...

Page 53: ...upply connected to these teni nals will provide power to the AC contactor lf battery voltage should drop below pull up voitage of con tactor 1 5 ENVIRONMENTAL RATfNGS IS 1 Ambient Operating Temperatur...

Page 54: ...2 DIMENSIONS q o q o I I I I L l I I I I q _ a q _ a p q S I I I I I I I I I I I I I I I I I I I...

Page 55: ...I I I I I I I I I I I I I I I I I I I 3 INSTALLER S CONNECTIONS 4SVOLT DCOUTPUT A NOTES 4 2 AND 4 5 I l e n 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 00 0 m 0 NOTES4 6 4 21 AND 4 25 0 0 NEG PO5...

Page 56: ...Temlinals Loop Length FT Rean T w Rean Toque Note 4 5 Wire Size I 3 2 Ga SOlderleSS 54 3 350 MCM to SCWW 500 In Lbs 77 3 500 MCM 750 MCM Me 92 3 600 MCM per Potmy 115 3 750 MCM AIARM AND CONTROL l W T...

Page 57: ...l 12 and a positive battery rectlier fail fndkatlln is pmvfded at terminal 10 ff closed loop actuated afamxr are desired remove the jumper between ter minals 11 and 26 During a rectifier failure condi...

Page 58: ...and open loop circuits between terminals 25 to 26 and 28 to 29 4 24 AUXIUARY DC POWER TERMINALS lB1 Capacity Tennfnafs We Loop Length Recm Torque NoE 6 Recm Wire Size 14 Ga 6 3 2 Non Captive SCreW 6...

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Page 73: ...also available from the Network Solutions Group outside of normal busi ness hours In the event of a Site Down off air or on Bafterv Backup situation caused by failure of a Mar coni Communications powe...

Page 74: ...sica Philadelphia Telephone 5 576 8277 Fax 525 358 7195 ILLINOIS TEXAS Fairfield Palantine Spring Euless UNlTED KINGDOM Unit DE West Entrance INDIANA VIRGINIA Fairoaks Airport Indianapolis Virginia Be...

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