AI-PMUL

AI-PMUL CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER The universal Rogowski coil integrator AI-PMUL complements LEM’s flexible clip-around coil ART and ARU range. The design is based on digital processing to give combined dynamic range, accuracy and versatility of use. It offers a wide range of output signals both RMS and instantaneous. AI-PMUL is DIN rail mounted and can be stacked for multiphase application without spacing thanks to its low power dissipation. Input signal Applications • • • • • • • • • • • • Accuracy Class 0.5 (IEC 61869-2) [1]. Linearity error ≤ 0.10 %. Protection degree IP2X. 35 mm DIN rail mounted. Push-in terminals. 4 selectable true RMS output signals: 0…20 mA, 4…20 mA, 0…5 V, 0…10 V. 2 selectable instantaneous output signals: 225 mV, 333 mV. 6 selectable sensitivities depending on Rogowski coil: 22.5, 70, 80, 85, 100, 120 mV/kA at 50 Hz. 12 selectable ranges: 100, 200, 300, 400, 500, 600, 800, 1000, 1500, 2000, 4000, 5000 A. Ambient operating temperature −25...+70 °C. • • • Standards • • Safety: IEC 61010-1: 2010. EMC: IEC 61326-1: 2012. Options Advantages • • • • • MV/LV substations: transformer condition monitoring. Power measurement: current measurement for active power calculation. Building sub-metering: energy efficiency monitoring, consumption analysis and cost allocation. Power quality monitoring: electrical loads and distribution system equipment. Fault Detection, Isolation and Repair (FDIR). Remote Terminal Units (RTU). Compact design for DIN rail assembly. High accuracy Class 0.5 (IEC 61869-2). Setup by user via Select / Edit buttons. Clear status indication via bi-color led. • Cross Power Plug-in: side contacts to stack up to 3 Integrator modules and use only one power supply. [1] AI-PMUL Integrators fulfill accuracy class limits defined by IEC 61869-2 even if this standard does not apply to Rogowski integrators. See detailed curve of accuracy given in this document. N° 97.T5.99.000.0 19March2020/Version 1 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. 1/12 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER Material and Insulation coordination Parameter Symbol Unit Value Comment RMS voltage for AC insulation test, 50 Hz, 1 min Ud kV 1.5 Between power supply 24 V and Rogowski connection + output Flammability according to UL94 - - V0 - Material - - Polyamide Halogen free Parameter Symbol Unit Value Comment Ambient operating temperature TA °C −25...+70 Ambient storage temperature TS °C −40...+85 Relative humidity (non-condensing) RH % 95 Altitude above sea level - m 2000 Mass m g 58 Parameter Symbol Unit Value General dimensional tolerance - mm ±1 Dimensions - mm³ 100 × 78 × 15 Mounting on DIN rail (IEC 60715) - - TH35-7.5 TH35-15 Parameter Symbol Unit Value 24 V DC Supply voltage UC DC V +10...+32 Current consumption IC mA max. 100 at 24 V V 5 For product configuration only Environmental characteristics Mechanical characteristics Comment Power Supply Auxiliary supply through micro-USB 2/12 Comment LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. N° 97.T5.99.000.0 19March2020/Version 1 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER Input Signal Parameter Symbol Unit Data Comment Rogowski coil sensitivity selection With push buttons See product configuration description Selection indication bi-color LED Green: Current range Red: Sensitivity & Output Rogowski coil sensitivities mV/kA 22.5, 70, 80, 85, 100, 120 Typical input impedance kΩ 10 At 50 Hz Rated frequency ƒr Hz 50…60 Automatic recognition of grid frequency Frequency bandwidth (at 3 dB) BW Hz 10…1500 Measurement bandwidth Current measurement range selection With push buttons Current measurement range A 100, 200, 300, 400, 500, 600, 800, 1000, 1500, 2000, 4000, 5000 Overcurrent measurement range % 120 Overcurrent based on maximum value of the range selected Short time withstand current on primary for 3 s [1]  kA 130 Worst case scenario with a Rogowski coil sensitivity of 120mV/kA Output Signal Parameter Symbol Unit Min Typ Max Comment 0...20 mA true RMS current output mode Iout mA 0 - 24 20 mA @ 100% I range 4...20 mA true RMS current output mode Iout mA 4 - 23.2 20 mA @ 100% I range 0...5 V true RMS voltage output mode Uout V 0 - 6 5 V @ 100% I range 0...10 V true RMS voltage output mode Uout V 0 - 12 10 V @ 100% I range 225 mV instantaneous voltage output mode Uout mV 0 - 270 225 mV rms @ 100% I range 333 mV instantaneous voltage output mode Uout mV 0 - 400 333 mV rms @ 100% I range Load resistance (all current output mode) RL Ω 0 - 500 Load resistance (all voltage output mode) RL kΩ 1 - - Temperature drift (all output mode) TCS ppm/K - - 150 Phase displacement @ 50 Hz or 60 Hz [2]  Δφ - - - 0.5° Accuracy class - - 0.5 [3]  - Linearity error ɛL % 0.1 Response time 10% (true RMS) current rise tD10 ms 45 Response time 90% (true RMS) current rise tD90 ms 160 Response time 10% (true RMS) current fall tD10 ms 65 Response time 90% (true RMS) current fall tD90 ms 190 From −25 °C … +70 °C [1] Maximum AI-PMUL input voltage of 16 V for 3 s equivalent of measurement of short time current of 130 kA for 3 s with a Rogowski coil of 120 mV/kA sensitivity. For higher short time current rated network please consult our technical team. [2] Value for instantaneous signal output and steady state primary current. [3] AI-PMUL Integrators fulfill accuracy class limits defined by IEC 61869-2 even if this standard does not apply to Rogowski integrators. See detailed curve of accuracy given in this document. N° 97.T5.99.000.0 19March2020/Version 1 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. 3/12 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER 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. Compatibility between current range selected and Coil sensitivity selected Current range and coil sensitivity should be chosen according to the table below. Coil sensibility selected 100 200 Current Range Selected 300 400 500 600 800 1000 1500 2000 4000 5000 4/12 22.5 70 80 85 100 120                                                            LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. N° 97.T5.99.000.0 19March2020/Version 1 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER Typical performance characteristics, Range 100 A Output 0 … 20 mA, Sensitivity 22.5 mV/kA 2 0,15 0,1 1 0,5 εL (% of Ipn) Measurement error (%) 1,5 0 -0,5 0,05 0 -0,05 -1 -0,1 -1,5 -2 5 25 45 65 85 -0,15 105 5 25 45 65 85 105 65 85 105 65 85 105 IP (A) IP (A) Output 0 … 10 V, Sensitivity 22.5 mV/kA 2 0,15 0,1 1 0,5 εL (% of Ipn) Measurement error (%) 1,5 0 -0,5 0,05 0 -0,05 -1 -0,1 -1,5 -2 5 25 45 65 85 -0,15 105 5 25 45 IP (A) IP (A) Output 0 … 225 mV, Sensitivity 22.5 mV/kA 0,15 2 0,1 1 0,5 εL (% of Ipn) Measurement error (%) 1,5 0 -0,5 0,05 0 -0,05 -1 -0,1 -1,5 -2 5 25 45 65 85 105 -0,15 5 25 Class 0,5 Full scale error 0,5% Class 0,5 Sample results Full scale error 1% Sample results N° 97.T5.99.000.0 19March2020/Version 1 45 IP (A) IP (A) LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. 5/12 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER Typical performance characteristics, Range 1000 A Output 0 … 20 mA, Sensitivity 22.5 mV/kA 2 0,15 0,1 1 0,5 εL (% of Ipn) Measurement error (%) 1,5 0 -0,5 0,05 0 -0,05 -1 -0,1 -1,5 -2 50 250 450 650 850 -0,15 1050 50 250 450 650 850 1050 650 850 1050 650 850 1050 IP (A) IP (A) Output 0 … 10 V, Sensitivity 22.5 mV/kA 2 0,15 0,1 1 0,5 εL (% of Ipn) Measurement error (%) 1,5 0 -0,5 0,05 0 -0,05 -1 -0,1 -1,5 -2 50 250 450 650 850 -0,15 1050 50 250 450 IP (A) IP (A) Output 0 … 225 mV, Sensitivity 22.5 mV/kA 0,15 2 0,1 1 0,5 εL (% of Ipn) Measurement error (%) 1,5 0 -0,5 0,05 0 -0,05 -1 -0,1 -1,5 -2 50 250 450 650 850 1050 -0,15 50 250 6/12 450 IP (A) IP (A) Class 0,5 Full scale error 0,5% Class 0,5 Sample results Full scale error 1% Sample results LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. N° 97.T5.99.000.0 19March2020/Version 1 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER Example of application Product configuration: • • • Range (green LED): 5000 A Output signal (red LED): 0 … 10 V Sensitivity (red LED): 22.5 mV/kA The graph hereafter give conversion between the primary current, the voltage output of Rogowski coil and the output voltage of the AI-PMUL. Output voltage (V) Measure on 1 kΩ 12 20 % 10 20 % 2 0 22,5 0 112,5 1 5 135 6 Rogowski coil signal (mV) 22.5 mV / kA sensitivity Primary current (kA) Saturation - Range LED is blinking N° 97.T5.99.000.0 19March2020/Version 1 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. 7/12 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER Example of typical transient response output 0 … 10 V Current (A) 15 10 5 0 -5 t D10 -10 t D90 -15 -0,05 0 0,05 0,1 0,15 0,2 0,25 0,3 0,35 Time (s) Grid AI-PMUL Output Current rise • tD 10 < 45 ms • tD 90 < 160 ms Current (A) 15 10 5 0 -5 t D10 -10 t D90 -15 -0,05 0 0,05 0,1 0,15 0,2 0,25 Grid 0,3 0,35 Time (s) AI-PMUL Output Current fall • • 8/12 tD 10 < 65 ms tD 90 < 190 ms LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. N° 97.T5.99.000.0 19March2020/Version 1 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER Connections and Interfaces A RC+ RCOUT+ OUT- 0A 400 0A 150 5V 0A 0A 800 A 600 A 500 A 400 A 300 A 200 A 1500 1000 0-20 mA A mA 5V A 10V A A 600 A 500 A 400 A 300 A 200 A E 4-20 A 225m V 333m V 22.5 70 80 85 100 A 120 SELE mA CT EDIT 10V 225 mV V+ VNC 333 mV 22.5 70 80 85 C A  MA Input for Rogowski coil (optional) S Section: 0.13 ... 1.5 mm2 B Terminal input coil and output signal Section: 0.13 ... 1.5 mm2 C A 800 100 mA 4-20 100 2000 0-20 200 0A 4000 mV/kA @ 50Hz 500 5000 mV/kA @ 50Hz RC+ RCOUT+ OUT- B D Cross Power plug-in Side contacts to stack up to 3 Integrator modules and use only 1 power supply. E Micro USB Energise AI-PMUL for configuration without connecting 24 V DC supply. Power supply terminals (DC, 24 V) Section: 0.13 ... 1.5 mm2 (24 ... 16 AWG) Third pin not connected Parameter Unit Min Type Typ Max Comment Push-in Clamping range mm Cross section Stripping length N° 97.T5.99.000.0 19March2020/Version 1 D 0.13 - 1.5 AWG 24 - 16 mm 9.5 10 10.5 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. 9/12 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER AI-PMUL series: name and codification AI-PMUL Family: AC Integrator Case type / Output signal: P: DIN RAIL mounting / MUL: Multiple output Description Item Number Comment AI-PMUL 90.T5.99.000.0 Integrator Low Power standard for automation applications AI ACCESSORY KIT M1 CROSS POWER PLUG-IN 90.T8.98.000.0 Cross Power plug-in accessory: Kit to connect 2 integrators power supplies Dimensions (in mm) 7 6 5 4 5000 A 0-20mA 4000 A 4-20mA 2000 A 10V 1000 A 225mV 800 A 333mV 600 A 22.5 500 A 70 400 A 80 300 A 85 200 A 100 100 A 120 mV/kA @ 50Hz 100 5V 1500 A SELECT EDIT 3 2 1 15 78 85.5 Installation, removal, wiring 100 200 A 100 A 120 CT SELE A 2000 A 1500 A 1000 A 800 A 600 A 500 A 400 A 300 A 200 A 100 A EDIT 0-20mA 4-20mA 5V 10V 5000 A 4000 A V A 2000 V 225m 1500 A 22.5 1000 A 70 800 A 333m 80 85 600 A 500 A 100 400 A 120 300 A 200 A 100 A 0-20mA 4-20mA 5V 10V V 225m V 333m 22.5 70 80 85 mV/kA @ 50Hz A 4000 mV/kA @ 50Hz 5000 100 120 SELECT SELECT EDIT EDIT To install, rotate terminal to mount on the rail DIN 10/12 To remove the device, use a 4 mm flat screwdriver To remove wiring easily, use any tools or a 2.5 mm flat screwdriver LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. N° 97.T5.99.000.0 19March2020/Version 1 AI-PMUL series CONFIGURABLE ROGOWSKI COIL SIGNAL CONDITIONER Safety and warning notes In order to guarantee safe operation of the signal conditioner 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 signal conditioner is used for the purpose it has been designed for and within the limits of the technical specifications. Caution Ignoring the warnings can lead to serious injury and/or cause damage! The electric measuring signal conditioner 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 signal conditioner and any electrical conductor. The signal conditioner 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. The product must be powered by a limited power source. The product shall be operated with Rogowski Coil compliant with IEC 61010-2-032. Consistency of measurements during maintenance operations shall be checked. Consistency of measurement during commissioning and maintenance shall be checked with suitable means (clamp-on ammeter). Product shall not saturate . Caution, possibility of electric shock When operating the signal conditioner, certain parts next to the signal conditioner may carry hazardous live voltage. The user shall ensure to take all measures necessary to be protected against electrical shock. Certain parts may contain 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 signal conditioner can only be guaranteed if transport, storage and installation are carried out correctly and operation and maintenance are carried out with care. The signal conditioner shall not be opened or modified. If not working, the signal conditioner shall be replaced by an equivalent device. To avoid electrical burn, electric shock or arc flash, do not install Rogowski coils on or remove them from hazardous live conductors. Any connection to the product shall fulfil the requirements for safety extra low voltage (SELV) circuits. N° 97.T5.99.000.0 19March2020/Version 1 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. 11/12 LEM International SA Chemin des Aulx 8, 1228 Plan-les-Ouates, Suisse +41 22 706 11 11 www.lem.com 12/12 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. N° 97.T5.99.000.0 19March2020/Version 1