ATO-20-B225-D10

SPLIT CORE CURRENT TRANSFORMER ATO Series IPr = 10, 15, 16, 20, 30, 32, 50, 60, 63, 75 A Ref: ATO-XXX-B225-D10 ATO series is a split core current transformer for the electronic measurement of AC waveform current with galvanic separation between the primary circuit (power) and the secondary circuit (measurement). ATO series is an ideal current transformer for new Smart-Grid applications, in which ratio error and phase displacement are fully tested with IEC 61869 standards accordance. Accuracy Class 1 IP IOUT RL A 45.5 mm B 15.8 C 33.5 D 24 E 32 Ø 10 Features Applications ●● Split-core current transformer ●● Hybrid inverter (Home Energy Storage) ●● Rated primary current: 10 A - 15 A - 16 A - 20 A - 30 A - 32 A - 50 A - 60 A - 63 A - 75 A ●● Power metering: current measurement for active power calculation ●● Application up to 600 V CAT III PD2, basic insulation ●● Building sub-metering: energy efficiency monitoring, consumption analysis and cost allocation ●● Accuracy class 1 (IEC 61869-2) ●● Voltage output, 225 mV at IPr ●● ⌀ 10 mm sensing aperture ●● Power quality monitoring: electrical loads and distribution system equipment ●● Distributed measurement systems ●● 1 m output cable ●● Ambient temperature −10 °C … +55 °C ●● Very low cost solution ●● Condition monitoring (e.g. Motor loads such as conveyers, pumps). ●● Slot for attaching the C.T. on the primary with plastic tie Standards ●● DIN rail adapter (optional). ●● IEC 61010-1: 2010 ●● IEC 61010-031 ed1.1: 2012 Advantages ●● No interruption of electricity during installation on insulated conductors ●● Quick, non-intrusive and easy setup ●● Provide a calibrate output. ●● IEC 61869-1 ed1.0: 2007 ●● IEC 61869-2: ed1.0: 2012 ●● IEC 61869-6: draft 2016 ●● IEC 61869-10: draft 2016 ●● UL 508: 2013. N°52.D2.13.000.0; N°52.D2.15.000.0; N°52.D2.J5.000.0; N°52.D2.17.000.0; N°52.D2.20.000.0; N°52.D2.J3.000.0; N°52.D2.25.000.0; N°52.D2.27.000.0; N°52.D2.G8.000.0; N°52.D2.30.000.0; Page 1/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Absolute maximum ratings Parameter Primary conductor temperature Symbol Unit Value TB °C 100 Stresses above these ratings may cause permanent damage. Exposure to absolute maximum ratings for extended periods may degrade reliability. UL 508: Ratings and assumptions of certification File # E189713 Volume: 2 Section: 8 Standards ●● CSA C22.2 NO. 14-10 INDUSTRIAL CONTROL EQUIPMENT - Edition 11 - Revision Date 2011/08/01 ●● UL 508 STANDARD FOR INDUSTRIAL CONTROL EQUIPMENT - Edition 17 - Revision Date 2013/10/16 For use only in complete equipment where the acceptability of the combination is determined by UL.LLC. Ratings Parameter Symbol Primary involved potential Unit Value V AC/DC 1000 Max surrounding air temperature TA °C 70 Primary current IP A 125 Conditions of acceptability When installed in the end-use equipment, consideration shall be given to the following: - These devices must be mounted in a suitable end-use enclosure. - The terminals have not been evaluated for field wiring - The products shall be used in a pollution degree 2 - Based on results of temperature test, in the end-use application a maximum of 100 °C can not be exceeded on the primary conductor. Marking Only those products bearing the UL or UR Mark should be considered to be Listed or Recognized and covered under UL’s Follow-Up Service. Always lood for the Mark on the product. Page 2/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Insulation coordination Parameter Symbol Unit Value Comment Rms voltage for AC insulation test, 50 Hz, 1 min Ud kV 4.3 Impulse withstand voltage 1.2/50 µs ÛW kV 7.8 Partial discharge extinction rms voltage @ 10 pC Ue kV 1.8 Clearance (pri. - sec.) dCI mm 8 Shortest distance through air Creepage distance (pri. - sec.) dCp mm 8 Shortest path along device body Case material flammability - -- V0 Application example - 600 V CAT III PD2 Reinforced insulation according to EN 50178 Application example - 300 V CAT III PD2 Reinforced insulation according to EN 61010-1 Application example - 600 V CAT IV PD2 Basic insulation according to EN 61010-1 Application example - 1000 V CAT III Basic insulation according PD2 to EN 61010-1 Application example - Between primary (completely filling the hole) and secondary According to UL 94 According to UL 508 Environmental and mechanical characteristics Parameter Symbol Unit Min Typ Max Ambient operating temperature TA °C −10 25 55 Ambient storage temperature TS °C −30 90 Relative humidity (non-condensing) RH % 0 85 Altitude above sea level m 2000 Surrounding temperature according to UL °C 70 Mass m g Comment 81 Page 3/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-10-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 10 Rated extended primary current IePr A 12 Rated short-time thermal current Ith kA 0.6 1) Rated dynamic current Idyn kA 1.5 at 50 Hz; 2.5 x Ith Rated transformation ratio kra A/V 44.44 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr at 50 Hz; 60 x IPr (1 s) Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 4/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-15-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 15 Rated extended primary current IePr A 18 Rated short-time thermal current Ith kA 0.9 Rated dynamic current Idyn kA 2.25 Rated transformation ratio kra A/V 66.67 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr 1) at 50 Hz; 60 x IPr (1 s) at 50 Hz; 2.5 x Ith Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 5/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-16-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 16 Rated extended primary current IePr A 19.2 Rated short-time thermal current Ith kA 0.96 Rated dynamic current Idyn kA 2.4 Rated transformation ratio kra A/V 71.11 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr 1) at 50 Hz; 60 x IPr (1 s) at 50 Hz; 2.5 x Ith Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 6/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-20-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 20 Rated extended primary current IePr A 24 Rated short-time thermal current Ith kA 1.2 Rated dynamic current Idyn kA 3 Rated transformation ratio kra A/V 88.89 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr 1) at 50 Hz; 60 x IPr (1 s) at 50 Hz; 2.5 x Ith Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 7/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-30-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 30 Rated extended primary current IePr A 36 Rated short-time thermal current Ith kA 1.8 1) Rated dynamic current Idyn kA 3.6 at 50 Hz; 2.5 x Ith Rated transformation ratio kra A/V 133.3 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr at 50 Hz; 60 x IPr (1 s) Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 8/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-32-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 32 Rated extended primary current IePr A 38.4 Rated short-time thermal current Ith kA 1.92 Rated dynamic current Idyn kA 4.8 Rated transformation ratio kra A/V 142.2 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr 1) at 50 Hz; 60 x IPr (1 s) at 50 Hz; 2.5 x Ith Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 9/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-50-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 50 Rated extended primary current IePr A 60 Rated short-time thermal current Ith kA 3 Rated dynamic current Idyn kA 7.5 Rated transformation ratio kra A/V 222.2 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr 1) at 50 Hz; 60 x IPr (1 s) at 50 Hz; 2.5 x Ith Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 10/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-60-B333-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 60 Rated extended primary current IePr A 72 Rated short-time thermal current Ith kA 3.6 Rated dynamic current Idyn kA 9 Rated transformation ratio kra A/V 266.7 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr 1) at 50 Hz; 60 x IPr (1 s) at 50 Hz; 2.5 x Ith Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 11/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-63-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 63 Rated extended primary current IePr A 75.6 Rated short-time thermal current Ith kA 3.78 1) Rated dynamic current Idyn kA 9.45 at 50 Hz; 2.5 x Ith Rated transformation ratio kra A/V 280 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr at 50 Hz; 60 x IPr (1 s) Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Page 12/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Electrical data ATO-75-B225-D10 At TA = 25 °C, Rbr = 100 kΩ, unless otherwise noted. Parameter Symbol Unit Min Rated burden Rbr kΩ 100 Rated primary current IPr A 75 Rated extended primary current IePr A 90 Rated short-time thermal current Ith kA 4.5 Rated dynamic current Idyn kA 11.25 Rated transformation ratio kra A/V 333.3 Rated secondary voltage USr mV 225 fr Hz 50/60 Symbol Unit Min Frequency bandwidth (−3 dB) BW kHz 1.5 Phase displacement ∆φ ° −1 TCIout ppm/k Ratio error ε % −1 1 Linearity error εL % −0.1 0.1 Influence of external conductor εext % Rated frequency Parameter Temperature coefficient of Iout Notes: Value Typ Max Comment 120 % of IPr 1) at 50 Hz; 60 x IPr (1 s) at 50 Hz; 2.5 x Ith Max 1 Comment 2) Short circuit condition (no load). 3) (−10 °C ... 55 °C) Detail page 14 3) (−10 °C ... 55 °C) Detail page 14 80 0.3 No test conducted given that is the worst case (load = 100 kΩ i.e short circuit on the output) the peak dissipated power remains low. 2) Frequency bandwidth and phase shift modeling schematic can be provided on request. 3) Considering a primary conductor of at least ⌀ 9 mm perpendicular to the current transfomer. All our LEMcity transducers class I are tested at 5 %, 20 % 100 % and 120 % of IPr to be according to IEC61869-2 table 201. 1) Definition of typical, minimum and maximum values Minimum and maximum values for specified limiting and safety conditions have to be understood as such as well as values shown in “typical” graphs. On the other hand, measured values are part of a statistical distribution that can be specified by an interval with upper and lower limits and a probability for measured values to lie within this interval. Unless otherwise stated (e.g. “100 % tested”), the LEM definition for such intervals designated with “min” and “max” is that the probability for values of samples to lie in this interval is 99.73 %. For a normal (Gaussian) distribution, this corresponds to an interval between −3 sigma and +3 sigma. If “typical” values are not obviously mean or average values, those values are defined to delimit intervals with a probability of 68.27 %, corresponding to an interval between −sigma and +sigma for a normal distribution. Typical, minimum and maximum values are determined during the initial characterization of the product. Page 13/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Typical performance characteristics Accuracy class 1 according to IEC 61869-2 At TA = 25 °C, at frequency = 50 Hz, Rbr = 100 kΩ, unless otherwise noted. 4.000 4.000 3.000 3.000 Accuracy(%) 1.000 0.000 -1.000 0 20 40 60 80 100 120 -2.000 Phase displacement(e e Class I limitation 2.000 -3.000 Class I limitation 2.000 1.000 0.000 -1.000 0 20 40 60 80 100 120 -2.000 -3.000 -4.000 -4.000 Percentage of 3U(%) Percentage of Pr(%) Figure 2: Phase displacement vs. primary current Figure 1: Accuracy vs. primary current Ratio error % of IPr Phase displacement 5% 20 % 100 % 120 % 5% 20 % 100 % 120 % Maximum 3.0 % 1.5 % 1.0 % 1.0 % 3.0° 1.5° 1.0° 1.0° Minimum −3.0 % −1.5 % −1.0 % −1.0 % −3.0° −1.5° −1.0° −1.0° At TA = 25 °C, at frequency = 60 Hz, Rbr = 100 kΩ, unless otherwise noted. 4.000 4.000 2.000 Accuracy(%) 3.000 Class I limitation 1.000 0.000 -1.000 0 20 40 60 80 100 -2.000 120 e -3.000 Phase displacement(e e 3.000 Class I limitation 2.000 1.000 0.000 -1.000 0 20 40 60 80 100 120 -2.000 -3.000 -4.000 -4.000 Percentage of 3U(%) Percentage of Pr(%) Figure 4: Phase displacement vs. primary current Figure 3: Accuracy vs. primary current Ratio error % of IPr Phase displacement 5% 20 % 100 % 120 % 5% 20 % 100 % 120 % Maximum 3.0 % 1.5 % 1.0 % 1.0 % 3.0° 1.5° 1.0° 1.0° Minimum −3.0 % −1.5 % −1.0 % −1.0 % −3.0° −1.5° −1.0° −1.0° Page 14/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Performance parameters definition Rated transformation ratio Kra Rated short-time thermal current Ith Ratio of Kra to the actual secondary voltage or current. Ratio error ε Maximum value of the primary current which a transformer will withstand for a specified short time without suffering harmful effects, the secondary winding being short-circuited. The current ratio error, expressed in per cent, is given by the formula: Rated dynamic current Idyn ε= kra Is − IP IP × 100 % Where: Maximum peak value of the primary current which a transformer will withstand, without being damaged electrically or mechanically by the resulting electromagnetic forces, the secondary winding being short-circuited. Kra: is the rated transformation ratio IP: is the actual primary current IS: is the actual secondary current when IP is flowing, under the conditions of measurement Phase displacement ∆φ The ∆φ is the difference in phase between the primary voltage or current and the secondary voltage or current phasors. The direction of the phasors being so chosen that the angle is zero for an ideal transformer. The phase displacement is said to be positive when the secondary voltage or current phasors leads the primary voltage or current phasors. Linearity error εL The linearity error εL is the maximum positive or negative difference between the measured points and a corresponding linear regression line, expressed in % of IPr. Page 15/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series ATO-XXX-B225-D10 series: name and codification ATO-XXX-B225-D10 Signal type: Technology: Signal Current AC processing: transformer Ferrite core Instanteneous output Safety and warning notes IPr Case type: Split core Output signal 1I: Inst. turn ratio (1: 1000) 225: 225 mV at IPN 333: 333 mV at IPN Aperture D10: ⌀ 10 mm D16: ⌀ 16 mm In order to guarantee safe operation of the transducer and to be able to make proper use of all features and functions, please read these instructions thoroughly! Safe operation can only be guaranteed if the transducer is used for the purpose it has been designed for and within the limits of the technical specifications. Ensure you get up-to-date technical information that can be found in the latest associated datasheet under www.lem.com. Caution! Risk of danger Ignoring the warnings can lead to serious injury and/or cause damage! The electric measuring transducer may only be installed and put into operation by qualified personnel that have received an appropriate training. The corresponding national regulations shall be observed during installation and operation of the transducer and any electrical conductor. The transducer shall be used in electric/electronic equipment with respect to applicable standards and safety requirements and in accordance with all the related systems and components manufacturers’ operating instructions. Caution! Risk of electrical shock When operating the transducer, certain parts of the module may carry hazardous live voltage (e.g. primary conductor). The user shall ensure to take all measures necessary to protect against electrical shock. The transducer is a build-in device containing conducting parts that shall not be accessible after installation. A protective enclosure or additional insulation barrier may be necessary. Installation and maintenance shall be done with the main power supply disconnected except if there are no hazardous live parts in or in close proximity to the system and if the applicable national regulations are fully observed. Safe and trouble-free operation of this transducer can only be guaranteed if transport, storage and installation are carried out correctly and operation and maintenance are carried out with care. Page 16/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series Dimensions (in mm) Connection IP Iout Vout & RL Mechanical characteristics ●● ●● ●● ●● General tolerance Primary aperture Fastening Output cable length ±0.5 mm ⌀ 10 mm Cable tie 1m Remarks ●● Attention: contact areas (air gap) must be kept clean (particle free) to ensure proper performance ●● Installation of the transducer must be done unless otherwise specified on the datasheet, according to LEM Transducer Generic Mounting Rules. Please refer to LEM document N°ANE120504 available on our Web site: Products/Product Documentation. Page 17/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com SPLIT CORE CURRENT TRANSFORMER ATO Series DIN RAIL ADAPTOR (additional part option) dimensions (in mm) Mechanical characteristics ●● General tolerance ●● Fastening ±0.4 mm 1.5 N·m Remarks ●● Attention: contact areas (air gap) must be kept clean (particle free) to ensure proper performance ●● Installation of the transducer must be done unless otherwise specified on the datasheet, according to LEM Transducer Generic Mounting Rules. Please refer to LEM document N°ANE120504 available on our Web site: Products/Product Documentation. Page 18/18 28March2016/version 0 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice LEM City answers the demand for an accurate, reliable and easy to install energy sensor for future Smart Cities. www.lem.com www.lemcity.com