uci, ucm, uch 224 & 274 inst serv & maint manual
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DESCRIPTIONInstallation, Service &Maintenance Manualfor AC generators with the following prefixes:UCI; UCM; UCD 224 & 274 .
Publication No: UCH-027 27th Edition 2/001
Installation, Service & Maintenance Manualfor AC generators with the following prefixes:
UCI; UCM; UCD 224 & 274 .
SAFETY PRECAUTIONSBefore operating the generating set, read the generating set operation manual and this generator manual and become familiar with it and the equipment.
SAFE AND EFFICIENT OPERATION CAN ONLY BE ACHIEVED IF THE EQUIPMENT IS CORRECTLY OPERATED AND MAINTAINED.Many accidents occur because of failure to follow fundamental rules and precautions.
ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. Ensure installation meets all applicable safety and local electrical codes. Have all installations performed by a qualified electrician. Do not operate the generator with protective covers, access covers or terminal box covers removed. Disable engine starting circuits before carrying out maintenance. Disable closing circuits and/or place warning notices on any circuit breakers normally used for connection to the mains or other generators, to avoid accidental closure. Observe all IMPORTANT, CAUTION, WARNING, and DANGER notices, defined as: Important ! Important refers to hazard or unsafe method or practice which can result in product damage or related equipment damage. Caution refers to hazard or unsafe method or practice which can result in product damage or personal injury.
Warning refers to a hazard or unsafe method or practice which CAN result in severe personal injury or possible death. Warning !
Danger refers to immediate hazards which WILL result in severe personal injury or death.
Due to our policy of continuous improvement, details in this manual which were correct at time of printing, may now be due for amendment. Information included must therefore not be regarded as binding.
FOREWORDThe function of this book is to provide the user of the Stamford generator with an understanding of the principles of operation, the criteria for which the generator has been designed, and the installation and maintenance procedures. Specific areas where the lack of care or use of incorrect procedures could lead to equipment damage and/or personal injury are highlighted, with WARNING and/or CAUTION notes, and it is IMPORTANT that the contents of this book are read and understood before proceeding to fit or use the generator. The Service, Sales and technical staff of Newage International are always ready to assist and reference to the company for advice is welcomed. Incorrect installation, operation, servicing or replacement of parts can result in severe personal injury or death, and/or equipment damage. Service personnel must be qualified to perform electrical and mechanical service.
ELECTROMAGNETIC COMPATIBILITYAdditional Information European Union Council Directive 89/336/EEC For installations within the European Union, electrical products must meet the requirements of the above directive, and Newage ac generators are supplied on the basis that:q They
are to be used for power-generation or related function. are to be applied in one of the following environments:
EC DECLARATION OF INCORPORATION All Stamford generators are supplied with a declaration of incorporation for the relevant EC legislation, typically in the form of a label as below.
Portable (open construction - temporary site supply) Portable (enclosed - temporary site supply) Containerised (temporary or permanent site supply) Ship-borne below decks (marine auxiliary power) Commercial vehicle (road transport / refrigeration etc) Rail transport (auxiliary power) Industrial vehicle (earthmoving, cranes etc) Fixed installation (industrial - factory / process plant) Fixed installation (residential, commercial and light industrial home / office / health) Energy management (Combined heat and power and/or peak lopping) Alternative energy schemesq The
EC DE CLARATION O F INCORPORATIO NIN A C C O R D A N C E W IT H T H E S U P P LY O F M A C H IN ER Y (S A F E T Y ) R E G U L AT IO N S 19 92 A N D T H E S U P P LY O F M A C H IN E R Y (S A F E T Y) (A M E N D M E N T ) R E G U LAT IO N S 1 99 4 IM PL E M E N T IN G T H E E C M AC H IN E R Y D IR EC T IVE 8 9 /39 2 /E E C AS A M E N D E D B Y 9 1 /3 6 8 /E E C . T H IS S TA M FO R D A.C. GE NE R ATOR W A S M A N U FAC T U R E D B Y O R O N B E H A LF O F NE WA GE INTER NAT IO NA L LTD B AR N A C K R O A D S TA M F O R D LIN C O L N SH IR E E N G L A N D . T H IS C O M P O N E N T M A C H IN E RY M U S T N O T B E PU T IN TO S E R V IC E U N T IL T H E M A C H IN ER Y IN TO W H IC H IT IS T O B E IN C O R P O R AT E D H A S BE E N D E C LA R E D IN C O N F O R M ITY W IT H T H E P R O V IS IO N S O F TH E S U P PLY O F M A C H IN E R Y (S A F E TY ) R E G U L ATIO N S 19 9 5/M A C H IN E R Y D IR E C T IV E . FO R AN D ON B EH ALF O F NE WAG E IN T ER N ATION A L LIM ITED
standard generators are designed to meet the industrial emissions and immunity standards. Where the generator is required to meet the residential, commercial and light industrial emissions and immunity standards reference should be made to Newage document reference N4/X/011, as additional equipment may be required. installation earthing scheme involves connection of the generator frame to the site protective earth conductor using a minimum practical lead length. and servicing with anything other than factory supplied or authorised parts will invalidate any Newage liability for EMC compliance.
P OS ITIO N : S IG NAT UR E:
T ECH NICA L DIRE CTO R
T H IS C O M P O N E N T M A C H IN E RY C A R R IE S T H E C E M A R K FO R C O M P LIA N C E W IT H T H E S TAT U TO R Y R E Q U IR E M E N T S FO R T H E IM P L EM E N TAT IO N O F TH E F O L LO W IN G D IR E C TIV E S
T h e E M C D ire c tiv e 8 9 /33 6 /E E C T h is C o m p o n ent M a c h ine ry sh a ll n o t be use d in th e R e side n tia l, C o m m e rc ia l and WA RN IN G ! L ig h t In d u stria l en viro n m e n t u nle s s it als o co n fo rm s to th e re le van t stan d a rd (E N 5 00 8 1 - 1 ) R E F E R TO FA C TO RY F O R D E TA ILS ii) T h e Lo w V olta ge D irec tiv e 7 3 /23 /E E C a s am en de d b y 9 3/68 /E E C
maintenance and servicing is carried out by adequately trained personnel fully aware of the requirements of the relevant EC directives.
Under the EC Machinery Directive section 1.7.4. It is the responsibility of the generator set builder to ensure the generator identity is clearly displayed on the front cover of this book.
FOREWORD CONTENTS SECTION 1 1.1 1.2 1.3 1.4 SECTION 2 2.1 2.2 2.3 2.4 SECTION 3 SECTION 4 4.1 4.2 4.2.1 4.2.2 4.2.3 4.3 4.4 4.4.1 4.4.2 4.4.3 4.4.4 18.104.22.168 22.214.171.124 126.96.36.199 188.8.131.52 184.108.40.206 4.4.5 4.5 4.5.1 4.6 4.7 4.7.1 220.127.116.11 18.104.22.168 22.214.171.124 126.96.36.199 188.8.131.52 4.7.2 4.8 SECTION 5 5.1 5.2 5.3 5.4 5.5 INTRODUCTION INTRODUCTION DESIGNATION SERIAL NUMBER LOCATION AND IDENTITY NUMBER LOCATION RATING PLATE AND CE MARKING PRINCIPLE OF OPERATION SELF-EXCITED AVR CONTROLLED GENERATORS PERMANENT MAGNET GENERATOR (PMG) EXCITED AVR CONTROLLED GENERATORS AVR ACCESSORIES TRANSFORMER CONTROLLED GENERATORS APPLICATION OF THE GENERATOR INSTALLATION - PART 1 LIFTING ASSEMBLY NO FOOT OPTION TWO BEARING GENERATORS SINGLE BEARING GENERATORS EARTHING PRE-RUNNING CHECKS INSULATION CHECK DIRECTION OF ROTATION VOLTAGE AND FREQUENCY AVR SETTINGS TYPE SX460 AVR TYPE SX440 AVR TYPE SX421 AVR TYPE MX341 AVR TYPE MX321 AVR TRANSFORMER CONTROLLED EXCITATION SYSTEM (Series 5) GENERATOR SET TESTING TEST METERING/CABLING INITIAL START-UP LOAD TESTING AVR CONTROLLED GENERATORS - AVR ADJUSTMENTS UFRO (Under Frequency Roll Off) (AVR Types SX460, SX440, SX421, MX341 and MX321) EXC TRIP (Excitation Trip) OVER/V (Over Voltage) TRANSIENT LOAD SWITCHING ADJUSTMENTS RAMP BUILD UP TIME TRANSFORMER CONTROLLED GENERATORS TRANSFORMER ADJUSTMENT ACCESSORIES INSTALLATION - PART 2 GENERAL GLANDING EARTHING PROTECTION COMMISSIONING
1 2&3 4 4 4 4 4 5 5 5 5 5 6 8 8 8 8 9 9 9 9 9 10 10 10 10 10 11 11 11 12 12 12 12 13 13 13 14 14 14 15 15 15 16 16 16 16 16 16
CONTENTSSECTION 6 6.1 6.2 6.2.1 184.108.40.206 6.2.2 6.3 6.4 6.4.1 6.5 6.5.1 6.6 SECTION 7 7.1 7.1.1 7.1.2 7.2 7.3 7.3.1 7.4 7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 7.4.6 7.4.7 7.5 7.5.1 220.127.116.11 18.104.22.168 7.5.2 22.214.171.124 126.96.36.199 7.5.3 188.8.131.52 184.108.40.206 220.127.116.11 18.104.22.168 7.6 SECTION 8 8.1 8.2 SECTION 9 ACCESSORIES REMOTE VOLTAGE ADJUST (ALL AVR TYPES) PARALLEL OPERATION DROOP SETTING PROCEDURE ASTATIC CONTROL MANUAL VOLTAGE REGULATOR (MVR) MX341 and MX321 AVR OVERVOLTAGE DE-EXCITATION BREAKER SX421 and MX321 AVR RESETTING THE BREAKER CURRENT LIMIT - MX321 AVR SETTING PROCEDURE POWER FACTOR CONTROLLER (PFC3) SERVICE AND MAINTENANCE WINDING CONDITION WINDING CONDITION ASSESSMENT METHODS OF DRYING OUT GENERATORS BEARINGS AIR FILTERS CLEANING PROCEDURE FAULT FINDING SX460 AVR - FAULT FINDING SX440 AVR - FAULT FINDING SX421 AVR - FAULT FINDING TRANSFORMER CONTROL - FAULT FINDING MX341 AVR - FAULT FINDING MX321 AVR - FAULT FINDING RESIDUAL VOLTAGE CHECK SEPARATE EXCITATION TEST PROCEDURE GENERATOR WINDINGS, ROTATING DIODES and PERMANENT MAGNET GENERATOR (PMG) BALANCED MAIN TERMINAL VOLTAGES UNBALANCED MAIN TERMINAL VOLTAGES EXCITATION CONTROL TEST AVR FUNCTION TEST TRANSFORMER CONTROL REMOVAL AND REPLACEMENT OF COMPONENT ASSEMBLIES REMOVAL OF PERMANENT MAGNET GENERATOR (PMG) REMOVAL OF BEARINGS REMOVAL OF ENDBRACKET AND EXCITER STATOR REMOVAL OF THE ROTOR ASSEMBLY RETURNING TO SERVICE SPARES AND AFTER SALES SERVICE RECOMMENDED SPARES AFTER SALES SERVICE PARTS IDENTIFICATION TYPICAL SINGLE BEARING GENERATOR (Fig. 11) TYPICAL TWO BEARING GENERATOR (Fig. 12) TYPICAL TWO BEARING (SERIES 5) GENERATOR (Fig. 13) ROTATING RECTIFIER ASSEMBLY (Fig. 14) 17 17