standards / manuals / guidelines for small hydro development - AHEC

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Positionof DialGaugeNo. ofPointatShaftUGBaLGBcTable – 1RESULTANT METHOD OF ALIGNMENT(ACTUAL EXAMPLE OF UNIT-I OF A POWER STATION)(VECTORIAL RESULTANT – AT FIG. 6)Upstream Side Dial GaugeFlangeeDial Gauge was notfixedTGBg c-a c-a g-aDial Gauge was notfixedUGBbLGBdDial Gauge was notfixedDown Stream Side Dial GaugeFlange TGBf h d-b f-b h-b0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 245 0 1 + ½ – 32 – 46 – 31.5 – 45.5 0+ 1 + 1 + 1 + 1 390 0 2 0 – 40 – 85 – 40 – 85 + 3½ + 3 + 30 – ½ + 26½ 4135 0 3 0 – 40 – 86 – 40 – 86 + 6½ + 13 + 31 + 6½ + 24½ 5180 0 4 0 – 30 – 65 – 30 – 65 + 7 + 28 + 71 + 21 + 64 6225 0 5 + 1 – 8 – 22 – 9 – 23 + 7 + 41 + 80 + 34 + 73 7270 0 6 – ½ + 15 + 26 + 15½ + 26½ + 7 + 30 + 76 + 23 + 69 8315 0 7 0 + 6 + 17 + 6 + 17 + 3 + 18 + 51 + 15 + 48 1360 0 8 – 1 + 4 + 14 + 5 + 15 + 1 – 6 – 1 – 7 – 2 2Dial Gauge was notfixedNo. ofPointatShaftNote: (a)(b)The readings of upstream side dial gauges are not acceptable as closing error is more.Unit-II side readings are fine because (i) closing error is negligible (ii) curve plotted along X-Y axis is nearer to sine curve (iii)these are confirmed in subsequent rotation also. Further calculations and correction is based on these.AHEC/MNRE/SHP Standards/ E&M Works – Guidelines for Operation and Maintenance of Small Hydropower Station 63
Fig 6: Resultant Method of Throw CalculationFig 7: Calculation of Shims Between FlangesAHEC/MNRE/SHP Standards/ E&M Works – Guidelines for Operation and Maintenance of Small Hydropower Station 64
Page 1 and 2:
STANDARDS / MANUALS / GUIDELINES FO
Page 3 and 4:
ITEMSPAGE NO4.2 Preventive Maintena
Page 5 and 6:
SECTION - IGUIDELINES FOR OPERATION
Page 7 and 8:
2.1.2 Lake/Storage/PondThe operatio
Page 9 and 10:
2.2.3 Electrical• Air seal valve
Page 11 and 12:
• Start command initiated(iv)Sync
Page 13 and 14:
‣ Check whether supply to various
Page 15 and 16:
- Intake gates, bye pass gates, D.T
Page 17 and 18: • To arrange for evacuation of ma
Page 19 and 20: SECTION - IIGUIDELINES FOR MAINTENA
Page 21 and 22: 2.3 PREDICTIVE MAINTENANCEThis sort
Page 23 and 24: 6. Oil Leakage Unit:i) Check any le
Page 25 and 26: 5. Shaft Gland Seal and Air Seal:i)
Page 27 and 28: v) In case the runner is found to b
Page 29 and 30: iii) Preheating of the blade to abo
Page 31 and 32: E. GovernorDifferent types of gover
Page 33 and 34: Sl. No. Description Periodicity Rem
Page 41 and 42: 4.2.1 Daily ChecksSl.No.Assembly It
Page 43 and 44: 4.2.3 Annual Inspection & Maintenan
Page 45 and 46: Sl.No.Assembly Item Check Point Met
Page 47 and 48: • Check all joints, tightness of
Page 49 and 50: S.No.Item to beinspectedInspection
Page 57 and 58: 4.4 PREVANTIVE MAINTENANCE OF HYDRO
Page 59 and 60: Spherical valves (for heads more th
Page 61 and 62: • Check rotor level, verticality
Page 63 and 64: • Any possible inbalance of runne
Page 65 and 66: The blades are set to the no-load p
Page 67: IV.Rotational Checks‣ Arrangement
Page 71 and 72: Fig 9: checking Verticality of Gene
Page 73 and 74: oFig 11: Checking Balancing of Gene
Page 75 and 76: Procedure for preliminary alignment
Page 77 and 78: Fig 14: Determining Displacements o
Page 79 and 80: SECTION-IIIGENERAL GUIDE LINES1.0 G
Page 81 and 82: • On placing them on operation du
Page 83 and 84: Safety Precautions and Practices in
Page 85 and 86: Results of test and measurements ca
Page 87 and 88: (NAME OF POWER STATION)DAILY GENERA
Page 89 and 90: (NAME OF POWER STATION)DAILY TRIPPI
Page 91 and 92: UnitGENERATION(MU)TOTALTIME(Hrs:Min
Page 93 and 94: MONTHLY TRIPPING REPORTFOR THE MONT
Page 95 and 96: AHEC/MNRE/SHP Standards/ E&M Works
Page 97 and 98: (POWER STATION)ANNUAL MAINTENANCE S
Page 99 and 100: UNIT/ EQUIPMENT/ FEEDER BAY/:DATE &
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