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- FOR FINAL(S-1272) 090324 Y.H.K J.H.P Y.O.KA FOR WORKING 070620 J.M.L - Y.O.K
REVISION DESCRIPTION DATE DWG CHECK APPDSHIP YARD STX/BARCLAY APPROVED BY Y.O.KIMHULL.NO S-2035/1243/50/58/62/72/98 APPROVED BYENG.MODEL 6L23/30H CHECKED BYkW RPM 960 kW 900 RPM DRAWN BY K.H.LEELIST.NO L23/30H-KB549 ISSUE DATE 2006.12.28
DIESEL GENERATING ENGINE
Engine Co.,Ltd.
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CUSTOMER : STX ENGINE CO., LTD.PROJECT NAME : STX/S1272/BARCLAYREFERENCE NO. : APP-6RAL466-Rev.3DATE ISSUED : Mar. 24th, 2009CLASS : DNV
(TEL:82-52-202-6849, FAX:82-52-202-6995)
HYUNDAI HEAVY INDUSTRIES CO., LTD Electro Electric Systems
http://www.hhi.co.kr
T.Y.CHO O.S.SONG H.W.KIM
Rev. Date Issued Contents PreparedbyChecked
byChecked
byApproved
by
0 Dec.29,2006 For Approval Y.H.LEE
S.M.LEE O.S.SONG H.W.KIM
1 Jan.22,2007 For Working Y.H.LEE T.Y.CHO O.S.SONG H.W.KIM
2 Jun.08,2007 For Re-Working Y.H.LEE
3 Mar.24,2009 For Final T.H.AN - - H.W.KIM
SPECIFICATIONfor
SYNCHRONOUS GENERATOR(1125 KVA, 8P, 450V, 60Hz, 3SETS)
FOR FINAL
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CONTENTS
1 CAUTION
2 SHAFT CURRENT FOR GENERATORS
3 SPECIFICATION OF GENERATOR : HFC6 508-84K-Rev.1
4 PROCEDURE OF A.C GENERATOR TEST : MG TD 1
5 SECTIONAL DRAWING : 3M-011837-Rev.0
6 OUTLINE OF GENERATOR : 3G-000478-Rev.0
7 DIMENSION OF SHAFT : 3G-000208-Rev.0
8 TERMINAL BOX ASS'Y : 3M-013004-Rev.0
9 AVR CONNECTION DIAGRAM : 3M-057721-Rev.2
10 TERMINAL BLOCK DIAGRAM : 3G-000402-Rev.0
11 WINDING TEMP. DETECTOR : 4M-006332-Rev.0
12 DROOP CHARACTERISTIC OF SYN. GENERATOR : 4G-000355-Rev.0
13 REFERENCE VALUE SETTER : 3M-054100-Rev.0
14 SPARE PART FOR A.C GENERATOR : 4M-043793-Rev.0
15 D/G SET PLAN VIEW : 4M-057762-Rev.0
16 INSPECTION & TEST REPORT
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A. Phase SequencePhase sequence of these generators are UVW regardless of rotating direction ofprime mover.Please connect all cables as shown in below figure 1.
Generator Side
MSBD : Main Switch Board
B. Manual SynchronizingPlease be careful at synchronizing of each generator during on board test or normaloperating as follows.
1) Check that incoming generator voltage level and frequency in its no-load condition is correct.2) After rotating the synchronizing switch to the "ON" position, please check the condition of the synchroscope pointer, and adjust the speed of the incoming Engine/Generator until it is rotating slowly to clockwise direction (no more than 1 revolution / 20 seconds).3) The incoming generator breaker should be closed as close to the 12 o'clock position as possible.
WarningIf generator breaker is closed at conditions other than the above, thegenerator excitation system (Diodes, Varistors, Transformer ) & rotoror stator can be damaged by transient reactive current.
W
< Figure 1 >
CAUTION
MSBD Side
U
V
W
U
V
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A. Shaft Current1. The shaft voltage is a high frequency voltage generated due to magnetic unbalance
of usually 1 volt or less and rarely several volts. When a shaft current by thisvoltage flows the shaft and journal part are tarnished and in the worst case, sparking results in minute black spots.There is a possibility that the oil film is broken locally developing a burn-out trouble.
2. Generally, in case of small capacity machines where no shaft voltage is generated,the bearing has no provision for insulation. In the case of large capacity machinesand high voltage machines that have possibility to generate the shaft voltage,the bearing stand is insulated from the bed plate on each side, and the piping withassociated with the bearing is also insulated.
3. When disassembling or assembling, be sure to measure the insulation resistance.The value of 1 to 3 will be satisfactory.
4. It is generally said that shaft voltage for sleeve bearing has the limit as follows.
500 mV : Harmless5001000 mV : A detrimental shaft current may possibly flow.1000 mV : Bearing may be damaged in a week to a year.
(Unless insulation is provided.)
B. Our GeneratorsWe apply followings as our internal standard for bearing insulation.We are sure and guarantee the safety of bearing by applying this standard to all ourgenerators. And the possible defect by shaft voltage can be easily found out by checkthe abnormal bearing temperature rise.
1) Below HF.5 630 FRAME generators : The bearing is not insulated becausethe shaft voltage is lower than 500mV.
2) HF.5 710 FRAME generators and over : The bearing is insulated becausethe shaft voltage over 500mV maybe generated.
3) High voltage machines (over 3,000V) : The bearing is insulated becausethe shaft voltage over 500mV maybe generated.
SHAFT CURRENT FOR GENERATORS
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[2007-06-08]
USE DIESEL ENGINE GENERATOR QUANTITY / SHIPTYPE OF ENCLOSURE IP 23 APPLIED CLASSCOOLING SYSTEM AIR TO AIR AMBIENT TEMP.EXCITING SYSTEM SELF EXCITING BRUSHLESS INSULATION CLASSSTRUCTURE OF ROTOR CYLINDRICAL ROTOR TEMPERATURE RISECOUPLING METHOD DIRECT RIGID APPLIED UNIT
TYPE TYPE OF BEARINGOUTPUT CAPACITY LOCATIONRATING SIZEPHASES,WIRE,CONN 3 , 3 W, Y (DAMPER WINDING) OIL QUANTITYVOLTAGE LUB SYSTEMCURRENT OIL GRADEFREQUENCY INLET PRESSURE - barPOLES INLET TEMP. Max - SPEEDPOWER FACTOR CAPACITY -GD/ J Kg.m/ Kg.m FLUID -ROTOR WEIGHT QUANTITY - m/hTOTAL WEIGHT INLET TEMP. -
TEMP RISE - OVER CURRENT PRESSURE DROP - Kg/cmVARIATION OF GENERATOR VOLTAGE DRY WEIGHT - KgOVER SPEEDVOLTAGE ADJUST WINDING TEMP. PT100 OHM 2EA/PHASEMOUNTING METHOD BEARING TEMP. ROD TYPE
COOLING AIR TEMP -LEAKAGE DETECTOR -
Xd %(UNSATURATED) T' d Sec.X' d %(SATURATED) T'' d Sec. * LOCATION OF TERMINAL BOX.X'' d %(SATURATED) Ta Sec. (VIEWD FROM PRIME MOVER)ra % * CABLE ENTRY NO.1:BOTTOM,NO.2,3:TOP
* SPACE HEATER 1PH, 220V, 315W* PAINTING COLOR 7.5 BG 7/2* LOCATION OF AIR COOLER FLANGE (VIEWD FROM PRIME MOVER)* ROTATING DIRECTION OF GENERATOR (VIEWD FROM PRIME MOVER)
1.THE SPECIFICATION OF * MARK SHOULD BE INFORMED ON YOUR APPROVED DRAWING
RW-W230-158-0 A4(210mm X 297mm)
REVISED BY OWNER COMMENTS
3ST / SHIPDNV
45 FF
METRIC
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B16
HFC6 508-84K-Rev.1
HFC6 508-84K1125.00 KVACONTINUOUS
N O T E
REV CONTENTS DATE07.06.08
SPECIFICATION OF GENERATOR
SPECIFICATION
CHARACTERISTICS
BEARING
AIR COOLER
2.3 LITER100*L120
SELF LUB.ISO VG 32
SLEEVE BEARING
2007.06.08 Y.H.LEE
DRIVED END NON-DRIVED END
C.C.W
DETECTING SYSTEM
S.M.LEE O.S.SONG H.W.KIM5
1234
CONFIRMED ITEM BY OWNER
DATE DESIGN CHECKED CHECKED APPROVED
REMARK
LEFT SIDE
1443.4 AAC 450 V
60 Hz8 P
900 RPM0.8 LAGGING
1685 Kg56.7226.8
3.9 ton
0.07880.00260.0217
150 % / 2 min.2.5 %
120 % / 2 min.5.0 %
REACTANCE & TIME CONSTANT(CALCULATED VALUE)
330.018.310.31.25
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MG TD 1 1 / 1
No Test Item Procedure Criterion Remarks
1 TemperatureRise Test
The generator will be operated withrated current by equivalent loadingmethod of IEEE115.Temperature rise of each windingwill be measured by resistance loadingmethod.
Stator : 100Rotor : 105 Type Test
2 Over current Test
The generator will have to withstand50% excess of rated current for 120seconds at power factor 0 aftertemperature rise test.
Without damagevisually
Only one(1)gen.per ship
3 Over speed Test
Over speed test will be carried outfor 120 seconds with 1.2 times therated speed under no excitationcondition.
Without damagevisually
Only one(1)gen.per ship
4 High VoltageTest
The test voltage with commercialfrequency will be applied to eachwinding for 60 seconds.
Stator : 2,000 VRotor : 1,500 V
5Measurement of
InsulationResistance
Insulation resistance of each separatewinding will be measured withDC megger before and afterhigh voltage test.
More than 5
6Measurement of
WindingResistance
Each winding resistance will bemeasured by bridge method.
7
Open-CircuitVoltage
CharacteristicTest
In the generator condition with ratedrevolution and open-circuit, the terminalvoltage and field current will bemeasured.
Only one(1)gen.per ship
8
Short-CircuitCurrent
CharacteristicTest
In the generator condition with ratedrevolution and short-circuit, the statorcurrent and field current will bemeasured.
Only one(1)gen.per ship
9Three PhaseShort-Circuit
Test
After power circuits are shorted with noexcitation, giving excitation wihile runningat rated revolution, the generator withexcitation systems will have to withstand300% rated current for 2 seconds.
Without damagevisually Type Test
Above test items & procedure are satisfied with DNV requirement. (Machines having rated output less than 1,300kVA and cooled by air with fan & air filter)
TEST PROCEDURE OF A.C SYNCHRONOUS GENERATOR
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DIESEL GENERATING ENGINE01. SPECIFICATION OF DIESEL ENGINE02. GENERAL ARRANGEMENT03. INSTALLATION AND COUPLING04. GENERAL OF PIPING SYSTEM05. FUEL OIL SYSTEM06. LUBRICATING OIL SYSTEM07. COOLING WATER SYSTEM08. STARTING AND CONTROL AIR SYSTEM09. COMBUSTION (SCAVENGING) AIR SYSTEM10. EXHAUST GAS SYSTEM12. ELECTRIC AND CONTROL SYSTEM14. ALTERNATOR15. SPARE PARTS AND TOOLS
