User manual 09/2009 - Schneider Electric

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The Metering FunctionReactive Powers With Harmonics for Each PhaseReactive power with harmonics is not physically significant.Metering on a 3-Pole or 4-Pole Circuit Breaker WithENVT OptionThe reactive power with harmonics is calculated for eachphase.Metering on a 3-Pole Circuit Breaker Without ENVTOption——Reactive PowersThe reactive power of the fundamental corresponds to the physical reactive power.Metering on a 3-Pole or 4-Pole Circuit Breaker WithENVT OptionThe reactive power for each phase and total reactivepower is calculated.Metering on a 3-Pole Circuit Breaker Without ENVTOptionOnly the total reactive power can be calculated.—Qfundw1 and Qfundw2 are the fictional reactive powers calculated by the 2-wattmeter method.Distortion PowerDistortion power is the quadratic difference between the reactive power with harmonics and the reactivepower (fundamental).Metering on a 3-Pole or 4-Pole Circuit Breaker WithENVT OptionThe distortion power for each phase and the totaldistortion power is calculated.Metering on a 3-Pole Circuit Breaker Without ENVTOptionOnly the total distortion power can be calculated.—Dw1 and Dw2 are the fictional powers calculated by the 2-wattmeter method.Total Reactive Power (With Harmonics)The total reactive power (with harmonics) is not physically significant.Metering on a 3-Pole or 4-Pole Circuit Breaker WithENVT OptionThe total reactive power is calculated.Metering on a 3-Pole Circuit Breaker Without ENVTOptionThe total reactive power is calculated.Total Apparent PowerMetering on a 3-Pole or 4-Pole Circuit Breaker WithENVT OptionThe total apparent power is calculated.Metering on a 3-Pole Circuit Breaker Without ENVTOptionThe total apparent power is calculated.84 LV434104 09/2009
The Metering FunctionEnergy Metering (Micrologic E)PresentationThe Micrologic E trip unit calculates the different types of energy by means of energy meters and providesthe values of:• The active energy Ep, the active energy supplied EpOut and the active energy consumed EpIn• The reactive energy Eq, the reactive energy supplied EqOut and the reactive energy consumed EqIn• The apparent energy EsThe energy values are indicated as an hourly consumption. These values are updated once a second.The energy values are stored in non-volatile memory once an hour.NOTE: When there is a weak current through the circuit-breaker (15 to 50 A depending on the rating), itis necessary to power the Micrologic E with an external 24 VDC power supply to calculate the energies.See Micrologic Trip Unit Power Supply, page 17.Principle of Energy CalculationBy definition• Energy is the integration of the instantaneous power over a period T:• The value of the instantaneous active power P and the reactive power Q can be positive (powerconsumed) or negative (power supplied) according to the operating quadrant (see Power Sign andOperating Quadrant, page 82).• The value of the apparent power S is always counted positively.Partial Energy MetersFor each type of energy, active or reactive, a partial energy consumed meter and a partial energysupplied meter calculate the accumulated energy by incrementing once a second:• The contribution of the instantaneous power consumed for the energy consumed meter• The contribution as an absolute value of the power supplied for the energy supplied meter (powersupplied is always counted negatively)The calculation is initialized by the last Reset action (see Resetting Energy Meters, page 86).Energy MetersFrom the partial energy meters and for each type of energy, active or reactive, an energy meter provideseither of the following measurements once a second:• The absolute energy, by adding the consumed and supplied energies together: the energyaccumulation mode is absolute• The signed energy, by differentiating between consumed and supplied energies: the energyaccumulation mode is signedThe apparent energy Es is always counted positively.Selecting Energy CalculationThe calculation selection is determined by the information sought:• The absolute value of the energy that has crossed the poles of a circuit breaker or the cables of anitem of electrical equipment is a relevant parameter for maintenance of an installation.• The signed values of the energy supplied and the energy consumed are needed to calculate theeconomic cost of an item of equipment.By default, absolute energy accumulation mode is configured.The parameter setting can be modified using the RSU software (see Metering Setup, page 123).LV434104 09/2009 85
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Low voltage electrical distribution
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Table of ContentsSafety Information
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Safety Information§Important Infor
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About the BookAt a GlanceDocument S
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Using Micrologic Trip UnitsLV434103
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Using Micrologic Trip UnitsIntegrat
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Using Micrologic Trip UnitsDescript
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Using Micrologic Trip UnitsKeypadTh
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Using Micrologic Trip UnitsScreensa
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Using Micrologic Trip UnitsEnergy M
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Using Micrologic Trip UnitsProtecti
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Using Micrologic Trip UnitsExample
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Using Micrologic Trip UnitsExample
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Using Micrologic Trip UnitsList of
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Using Micrologic Trip UnitsMicrolog
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Page 35 and 36: The Protection FunctionLV434103 09/
Page 37 and 38: The Protection FunctionElectrical D
Page 39 and 40: The Protection FunctionProtection F
Page 41 and 42: The Protection FunctionIr Pick-Up S
Page 43 and 44: The Protection FunctionShort Time P
Page 45 and 46: The Protection FunctionInstantaneou
Page 47 and 48: The Protection FunctionIg Pick-Up S
Page 49 and 50: The Protection FunctionOperating Pr
Page 51 and 52: The Protection FunctionZSI Function
Page 53 and 54: The Protection FunctionCharacterist
Page 55 and 56: The Protection FunctionProtection f
Page 57 and 58: The Protection FunctionAdditional P
Page 59 and 60: The Protection FunctionLong Time Pr
Page 61 and 62: The Protection FunctionThermal Memo
Page 63 and 64: The Protection FunctionInstantaneou
Page 65 and 66: The Protection FunctionIg Pick-Up S
Page 67 and 68: The Protection FunctionOperating Pr
Page 69 and 70: The Protection Functiontjam Time De
Page 71 and 72: The Protection FunctionLong Start M
Page 73 and 74: The Metering FunctionLV434103 09/20
Page 75 and 76: The Metering FunctionReal-Time Meas
Page 77 and 78: The Metering FunctionResetting Maxi
Page 79 and 80: The Metering FunctionSynchronized M
Page 81 and 82: The Metering Function3-Pole Circuit
Page 83: The Metering FunctionPower Calculat
Page 87 and 88: The Metering FunctionHarmonic Curre
Page 89 and 90: The Metering FunctionMetering Energ
Page 91 and 92: The Metering FunctionPower factor P
Page 93 and 94: The Metering FunctionManagement of
Page 95 and 96: The Metering Function3.2 Measuremen
Page 97 and 98: The Metering FunctionMicrologic A -
Page 99 and 100: The Metering FunctionVoltage Unbala
Page 101 and 102: The Metering FunctionOperating Indi
Page 103 and 104: The Metering FunctionMicrologic E -
Page 105 and 106: AlarmsLV434103 09/2009Alarms4AimThi
Page 107 and 108: AlarmsAlarm on Superiority Conditio
Page 109 and 110: AlarmsAlarms on a Trip, Failure and
Page 111 and 112: AlarmsUser-Defined Alarms (Microlog
Page 113 and 114: AlarmsAlarms on a Trip EventLabel C
Page 115 and 116: AlarmsOperation in Open or Closed F
Page 117 and 118: The RSU Parameter Setting SoftwareL
Page 119 and 120: The RSU Parameter Setting SoftwareU
Page 121 and 122: The RSU Parameter Setting SoftwareP
Page 123 and 124: The RSU Parameter Setting SoftwareM
Page 125 and 126: The RSU Parameter Setting SoftwareA
Page 127 and 128: The RSU Parameter Setting SoftwareS
Page 129 and 130: Operating AssistanceLV434103 09/200
Page 131 and 132: Operating AssistanceLocal LED Indic
Page 133 and 134: Operating AssistanceIndication on t
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Operating AssistanceIndication of F
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Operating AssistanceIndication on I
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Operating AssistanceAlarms on Equal
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Operating AssistanceInterpreting th
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Operating AssistanceThe ULP SystemD
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Operating AssistanceMain MenuPresen
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Operating AssistanceScreenDescripti
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Operating AssistanceRCU Software Fu
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Operating AssistanceCompact NSX Cir
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Operating AssistanceMaintenance Ind
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LV434103 09/2009AppendicesLV434104
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Tripping and Limitation CurvesLV434
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Tripping and Limitation CurvesTripp
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Tripping and Limitation CurvesCompa
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LV434104Micrologic 5/6 electronic t
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User manual 09/2009 - Schneider Electric

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