grundfos data booklet

More documents

Recommendations

Info

6SP A, SPAccessoriesStaybolt kits for Pt1000 in MS6 and MS 6000 Description Product numberGrA3191 0407Staybolt kit for Pt100/Pt1000.Material: EN 1.4401/AISI 316.Staybolt kit for Pt100/Pt1000.Material: EN 1.4539/AISI 904L.9755063996803373Insertion probe for MMS 10000 and MMS 12000 Description Product numberTM04 3560 4508Insertion probe for Pt100/Pt1000 in MMS 10000 and MMS12000.Material: EN 1.4401/316 (N-version).96913215Extension kit for sensor cable for Pt1000 Description Product numberTM00 7885 (tmExtension kit for Pt100/Pt1000 sensor cable.For watertight shrink-joining of the sensor cable.Extra sensor cable must be ordered separately.96571480Sensor cable Description Product numberTM00 7882 2296Drop cable for extension.Mention length when ordering.Maximum recommended length: 350 m.RM527192
SP A, SP77. Energy consumptionEnergy consumption ofsubmersible pumpsThe percentage distribution of service life costs of asubmersible pump for water supply is as follows:• 5 % initial costs (pump)• 85 % operating costs / energy consumption• 10 % maintenance costs.It is obvious that the highest savings can be achievedwithin energy consumption!The annual energy consumption, E, of a submersiblepump can be calculated as follows:E = c x h x P1 (EUR)c = specific energy price (EUR/kWh)h = operating hours/year (hours)P1 = power input of the submersible pump (kW).Example: Calculation of the annual energyconsumption of the submersible pump, type SP 125-3.SP 125-3 with MS 6000, 30 kW, 3 x 400 V, 50 Hz.Duty pointFlow rate: Q = 120 m 3 /hTotal head:H = 63 mSpecific energy price: c = EUR 0.1/kWhCalculation of motor efficiency at duty pointAs standard, the SP 125-3 is fitted with a 30 kWMS 6000 motor.At duty point (Q = 120 m 3 /h), the pump requires 26 kW,thus:a motor load of 87 % (26 kW / 30 kW) and a powerreserve of 13 %.From the table on page 71, the motor efficiency can beread as:85 % at a load of 75 % (η 75 % )84 % at a load of 100 % (η 100 % )The interpolated value in this example isη motor = 84.5 %, η motor = 0.845.P1 = = 30.77 kW0.845E = 0.1 EUR/kWh x 3200 h x 30.77 kW.The annual energy costs amount to EUR 9,846.If we compare the energy costs of this energy-efficientGrundfos submersible pump with a submersible pump,type SP 120-4, from 1995, (Q = 110 to 120 m 3 /h;H = 63 to 58 m; η motor = 82 %), we see that at thesame annual total flow of 384,000 m 3 and the samecurrent price of 0.1 EUR/kWh, the annual energyconsumption of the old pump amounts to EUR 12,777.(consisting of day and nightWear and deposits on the motor and the pumprate)were not taken into account.Operating hours/year: h = 3200.The pay-off time, A (months), is calculated as follows:Q x H x ρP1 =in kW367 x η pump x η motorA = Purchase price of energy-efficient pump x 12Energy savings/yearQ = m 3 /hThe purchase price of the energy-efficient pump isH = mEUR 4,090.Density ρ = kg/dm 3 (assumed 1)4090367 = conversion factorA =x 12 = 16.7 months(EUR 12,777 – EUR 9,846)η pump = (not to be confused with the stageefficiency curve)The pay-off time is 16.7 months.η motor = (example 84.5 %, in equation 0.845).Note: The complete system should be sized for energyefficiency (cable/discharge pipes).By showing the P2/Q curve we make it easier for youto calculate the energy consumption.Cable sizingP2In order to obtain an economical duty of the pump, theP1 =η motorvoltage drop should be low.Today, large water works already size cables for aP2 = 26 kW (power requirement of SP 125-3 pump at120 m 3 maximum voltage drop of 1 %./h, from curve P2/Q on page 56).The hydraulic resistance in the discharge pipe shouldbe as low as possible.26Energy consumption93
Page 1 and 2:
GRUNDFOS DATA BOOKLETSP A, SPSubmer
Page 3 and 4:
SP A, SP11. General descriptionPerf
Page 5 and 6:
SP A, SP1Pump rangeType SP 1A SP 2A
Page 7 and 8:
SP A, SP2Bearings with sand channel
Page 9 and 10:
SP A, SP33. Submersible motorsFeatu
Page 11 and 12:
SP A, SP3Lightning protectionThe sm
Page 13 and 14:
SP A, SP3Material specification for
Page 15 and 16:
SP A, SPPerformance curves and tech
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42: SP A, SPPerformance curves and tech
Page 71 and 72: SP A, SP55. Electrical data1 x 230
Page 73 and 74: SP A, SP53 x 400 V, submersible ind
Page 75 and 76: SP A, SP53 x 500 V, submersible mot
Page 77 and 78: SP A, SP66. AccessoriesCUE frequenc
Page 79 and 80: SP A, SP6The CUE is the right choic
Page 81 and 82: SP A, SP6IO 112 moduleProduct Descr
Page 83 and 84: SP A, SP6Connecting piecesThe table
Page 85 and 86: SP A, SP6ProductTM04 4980 2309Descr
Page 87 and 88: SP A, SP6Zinc anodesApplicationsCat
Page 89 and 90: SP A, SP6PR 5714 with Pt100 sensorT
Page 91: SP A, SP6CU 220 with Pt1000 sensorT
Page 95 and 96: SP A, SP8Cable dimensions at 3 x 40
Page 97 and 98: SP A, SP99. Table of head lossesHea
Page 99 and 100: SP A, SP1010. Further product docum
Page 101 and 102: 101
Page 103 and 104: 103
show all

grundfos data booklet

Create successful ePaper yourself

Delete template?

Save as template?