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Mega MEg45PAN User Manual

Universal monitor
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MEg45PAN Universal Monitor
User manual
MEgA – Měřící Energetické Aparáty, a.s.
MEgA – Měřící Energetické Aparáty, a.s.
664 31 Česká 390
664 31 Česká 390
Czech Republic
Czech Republic

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  • Page 1 MEg45PAN Universal Monitor User manual MEgA – Měřící Energetické Aparáty, a.s. MEgA – Měřící Energetické Aparáty, a.s. 664 31 Česká 390 664 31 Česká 390 Czech Republic Czech Republic...
  • Page 3 MEg45PAN Universal Monitor – User manual MEg45PAN Universal Monitor 1/ INTRODUCTION The MEg45PAN panel universal monitor is designed for measuring at the LV level with a remote communication option. It measures three voltages and three currents. It has four two-stage inputs and a relay output.
  • Page 4 CAT IV 300 V. It can also be powered with an auxiliary DC supply voltage in the range of 10 to 30 V. The power supply of MEg45PAN contains supercapacitors that provide uninterrupted measurement and remote communication even in the case of short power outages with a total duration of up to 30 s.
  • Page 5 Continuous remote automatic data reading of one, but especially multiple instruments available on the network, including monitoring of input states is performed by the MEgA Merci Multi system [5], which works as a Windows OS service on the server. Periodic data reading is performed at a set interval, usually daily.
  • Page 6 3/ DESCRIPTION OF THE INSTRUMENT 3.1 Design The MEg45PAN monitor shown in Figure 1 is designed for fixed mounting in a square panel hole or in a special U-shaped section on the panel. It is housed in a non-flammable black plastic housing measuring 90 × 90 × 90 mm, which has a 96 × 96 mm frame of 6 mm height on the front.
  • Page 7 10 A or 50 A. The current inputs of the special third variant of the MEg45PAN monitor can be directly connected to AMOSm flexible sensors with a rated current of 30 A / 100 A / 300 A / 1000 A...
  • Page 8 600 mm. Such a measuring set is calibrated together, and the flexible sensors therefore have a serial number identical to the serial number of the monitor. Also, the rear panel of the MEg45PAN monitor is provided with information on the rated value of measured phase voltage of 230 V...
  • Page 9 MEg45PAN Universal Monitor – User manual Tab. 1: Description of MEg45PAN elements Item Group name Description Display Backlit colour LCD display with 320 × 240 pixels and the displaying area of 72 × 55 mm Middle button It allows you to navigate to the main page and select functions...
  • Page 10 3.2 Functions of the monitor The MEg45PAN universal monitor is a class A or S instrument whose measurement methods meet the requirements of class A according to EN 61000-4-30, ed. 3. The mea- surement methods and uncertainties of the measured quantities are tested according to EN 62586-2 and the effects of operating conditions according to the procedures specified in EN 62586-1.
  • Page 11 The MEg45PAN universal monitor can be set for the function of recording oscilloscope, in which it records measured voltage and current values for a defined period. During os-...
  • Page 12 Měřící Energetické Aparáty 3.2.1 Measuring functions The scope of measured variables depends on the measurement connection and measure- ment parametrisation. Measured data can be divided into data of continuous phenomena of voltage quality, data of rapid voltage changes, data during one-off voltage phenomena and events related to currents, recorder data, electric meter function data, data from measurements of active energy during rapid changes of flow direction and data of HDO signals.
  • Page 13 MEg45PAN Universal Monitor – User manual Data of rapid voltage changes – RVC: − Start time of rapid voltage change − Duration of rapid voltage change in ms − Average voltage in balanced state before RVC − Average voltage in balanced state after RVC −...
  • Page 14 Měřící Energetické Aparáty Phase: − Voltage U , – average, minimum, maximum − THD voltage harmonic distortion factor − Direct-current component of voltage U − Harmonic components of voltage U of order n from 1st to 64th, − Currents I , –...
  • Page 15 MEg45PAN Universal Monitor – User manual HDO telegram data: − HDO telegram transmission start time − HDO telegram phase − Address and command part of the HDO telegram − Minimum and maximum voltage of HDO telegram marks − HDO telegram carrier frequency...
  • Page 16 Měřící Energetické Aparáty 3.2.3 Protection functions Protection functions are user-adjustable, examples of settings are shown in Figure 4. The recording of phase voltage and current courses and voltage and current unbalance into the monitor’s memory when the protection functions activate is uniform. The memory always stores the last 12 events of each type of fault.
  • Page 17 MEg45PAN Universal Monitor – User manual Each evaluation of voltage under the overvoltage limit of the 1st stage resets the evalua- tion of the detection time of the given phase. Function of protection according to voltage unbalance In the function input, the user sets the limit of the u2 unbalance of three-phase voltage in %, the detection time in seconds and protection blocking at phase voltage lower than the set value.
  • Page 18 Měřící Energetické Aparáty With the blown MV fuse indication function, the parameters corresponding to a blown MV fuse are continuously evaluated at the LV level. If all parameters evaluated during the detection time correspond to a blown MV fuse, the protection function activates. The instrument records the moment of protection activation, the course of RMS½...
  • Page 19 The monitor memory holds data of the last twelve records of faults. 3.3 Description of control elements and displaying on the display The front panel of the MEg45PAN universal monitor includes, in addition to instru- ment marking, manufacturer, serial number and QR code with technical information, a large-format colour LCD, under which are three directional touchbuttons, a RUN LED...
  • Page 20 Měřící Energetické Aparáty Continuously lit RUN LED indicates a failure. When turned on, the display will show the Přehled (1/9) (Overview) page of the Měřid- lo (Meter) function with the basic measured phase quantities U, I, P, Q, PF. By pressing the central button with the circular target, the display always switches to the main Menu page, see Figure 5, with the five measurement functions and the Nastavení...
  • Page 21 MEg45PAN Universal Monitor – User manual The page Harm.U1 (4/9) to Harm.U3 (6/9), see Figure 9, repeatedly displays the spectral lines of the 2nd to 40th harmonics of the corresponding phase voltage expressed as a % of the fundamental harmonic. The top right shows the voltage value of the fundamental...
  • Page 22 Měřící Energetické Aparáty phase values of voltages, currents, active and reactive powers and power factor values. On the Proudy (2/4) (Currents) page, see Figure 12, these are the average, maximum and minimum current values for each phase. On the Výkony (3/4) (Powers) page, these are the active and reactive powers for each phase, and on the Výkon 3f (4/4) page, these are the three-phase, active power P, reactive power Q, apparent power S, deformation power D, and total unbalance power C.
  • Page 23 MEg45PAN. The Události (Events) paragraph informs about the set limits of voltage phenomena, whether they are set according to the standard or modified by the user.
  • Page 24 An example of an interface is a VPN. The GSM paragraph contains information about the connection via GSM modem in- tegrated in the MEg45PAN monitor. The GSM connection is characterized by the IP address e.g. 10.50.1.18/24 and the item Síť (Network) in which the modem is registered.
  • Page 25 MEg45PAN Universal Monitor – User manual − Uzamčen (Locked) – request to enter PIN. Note that this may appear briefly even if the correct PIN is entered in the configuration. The next time the information is refreshed (after 3 minutes), this condition should disappear.
  • Page 26 Měřící Energetické Aparáty The fifth page Jazyk (5/5) (Language) of the Nastavení (Settings) function can be used to change the display language Čeština / English. Figure 5: Menu Figure 6: Overview / Meter Figure 7: Phasors Figure 8: Oscilloscope Figure 9: Harmonic voltages Figure 10: Overview / Quality...
  • Page 27 MEg45PAN Universal Monitor – User manual Figure 11: Flicker Figure 12: Currents / Recorder Figure 13: Electric meter/Energy Figure 14: Phenomena/Events Figure 15 HDO...
  • Page 28 TN-S networks and to the PEN conductor in TN-C networks. The MEg45PAN monitor is powered by the voltages of the measuring voltage inputs. It also has an auxiliary DC power supply with a rated value of 12 – 24 V connected between terminals + and –.
  • Page 29 The MEg45PAN in Figure 19 is pow- ered from the measured voltages only via a three-pole fuse disconnector.
  • Page 30 Měřící Energetické Aparáty speed of installation, which can be conducted even under voltage without the need for switching off. Figure 18: Interconnection of common terminals in MEg45PAN RS485 1 2 3 4 IN ZDROJ MEg45PAN S1(k) S2(l) 5A/1A S1(k) S2(l)
  • Page 31 A wiring example is shown in Fig- ure 25. The wiring of the four two-stage inputs IN1 to IN4 of the IN connector of the MEg45PAN monitor is shown in Figure 26. The internal supply voltage is 24 V .
  • Page 32 The connection of local communication between the measuring and control system and a group of MEg45PAN monitors using the RS485 interface is shown in Figure 28. One RS485 interface with the MODBUS RTU allows communication with up to 30 devices.
  • Page 33 MEg45PAN Universal Monitor – User manual Fig. 19: Connection of MEg45PAN in a transformer station, CAT IV 300 V, current transformers with I = 5 A Positive direction of energy flow K/P1 L/P2 k/S1 l/S2 L/P2 K/P1 Consumption l/S2 k/S1...
  • Page 34 Měřící Energetické Aparáty Fig. 21: Connection of MEg45PAN in a LV TN-C type network, with fuse discon- nectors in voltage circuits and current measurement by AMOS/1A sensors, category CAT IV 300 V Positive direction of energy flow Consumption B1B2B3 B1B2B3...
  • Page 35 MEg45PAN Universal Monitor – User manual Fig. 23: Connection of MEg45PAN in a LV TN-S type network, current measurement by LCT Positive direction of energy flow Consumption Fuse disconnector OPVP-3 Cylinder fuse 10x38 gG 1,0A S1(k) S2(l) S1(k) S2(l) S1(k)
  • Page 36 Měřící Energetické Aparáty Fig. 25: Connection of MEg45PAN monitor with current measurement by TORm toroids connected in secondary current circuits of current transformers Positive direction of energy flow K/P1 L/P2 k/S1 l/S2 L/P2 K/P1 Consumption l/S2 k/S1 L/P2 K/P1 k/S1...
  • Page 37 S2(l) S1(k) Secured S2(l) power supply 10 to 30 V Fuse disconnector OPVP-2 Cylinder fuse 10x38 gG 4,0A Fig. 28: Communication of MEg45PAN monitors via the RS485 interface max. 30m, max. 30 adresses Local measurement and control system synchronization synchronization...
  • Page 38 Měřící Energetické Aparáty Fig. 29: Secure GSM communication of the MEg45PAN monitor via data concentrator Data concentrator S1(k) S2(l) S1(k) S2(l) S1(k) S2(l) communication Fig. 30: Connection of MEg45PAN to an Ethernet network synchronization S1(k) S2(l) S1(k) S2(l) S1(k) Ethernet...
  • Page 39 MEg45PAN Universal Monitor – User manual Fig. 31: Communication of MEg45PAN monitors via the ETH interface and Switch unit S1(k) S1(k) S2(l) S2(l) S1(k) S1(k) S2(l) S2(l) S1(k) S1(k) S2(l) S2(l) RJ45 – ETH connector Signal TX+ on pin 1...
  • Page 40 • When the MEg45PAN universal monitor is used in a different way than it is specified by the manufacturer, the protection provided by the MEg45PAN monitor can be impaired.
  • Page 41 Measured voltage must always be brought to the U1 reference voltage input.. All three current inputs of the MEg45PAN monitor shall be, in accordance with the specification on the rear panel of the monitor, connected to current transformers/sensors with the identical rated value of secondary current or voltage or the identical type of non-standard current sensor.
  • Page 42 – terminal of the monitor. To power only the MEg45PAN monitor, use fuses with a rated value of 1.0 A. To power the MEg45PAN unit and three AMOS/1A converters, use fuses with a rated value of 4.0 A.
  • Page 43 The output cable of the transformer with marked conductors S1(k) and S2(l) shall be connected to the corresponding S1 and S2 terminals of the I1 current of the MEg45PAN monitor with currents I = 5 A / 1 A, refer to Fig.
  • Page 44 ) contacts of all three converter units to the input current terminals S1 A3(+U and S2 of the I1, I2 and I3 current inputs of the MEg45PAN monitor, grounding of the -U , k terminals and connecting of power supply to the converter units is shown in Fig.
  • Page 45 Figure 22, check the marking I1, I2 and I3 on the individual sensors and the conformity of the serial numbers of all three AMOSm sensors with the serial number of the MEg45PAN monitor with which they were calibrated by the manufacturer. Then, check the AMOSm marking near the cur-...
  • Page 46 8. The galvanically free switching contacts of up to four external devices powered by the internal 24 V voltage of the MEg45PAN monitor in Figure 26 are to be connect- ed to terminals 1 to 4 of the IN inputs. If the switching contacts are grounded by one pole, these poles must be connected to the common contact G of the five-pole IN input connector.
  • Page 47 The connection of the GSM remote communication antenna and the GPS time synchronisation antenna to the MEg45PAN monitor is shown in Figure 30. Figure 31 shows an example of MEg45PAN connection to an Ethernet network through a cable inserted in a RJ45 WS 8-8 connector labelled ETH.
  • Page 48 Měřící Energetické Aparáty Fig. 34: Confirmation of USB communication between MEg45DIN and an inspection computer Fig. 35: Connection of measured voltages and currents...
  • Page 49 MEg45PAN Universal Monitor – User manual 4. In the main bar, select Měřidlo (Meter) according to Figure 35. This shows the values of the connected phase voltages and phase currents in the Samples view. To check the correct direction of current connection, correct direction of phase voltage rotation and correct assignment of phase currents to phase voltages, press the Test button.
  • Page 50 MEg45DIN 8/ MAINTENANCE Caution − The repairs of the MEg45PAN universal monitor during the warranty period may only be carried out by the manufacturer’s skilled and trained personnel or by the manufacturer’s service organizations. − The monitor may not be exposed to chemicals.
  • Page 51 To protect the auxiliary DC power supply of the monitor and the trio of AMOS/1A flex- ible sensors, use 10×38gG 4.0 A cylinder fuses. 9/ DISPOSAL When the service life of the MEg45PAN universal monitor is over, it must be recycled at waste disposal sites according to rules for electronic waste disposal. 10/ WARRANTY...
  • Page 52 = 230 V, serial interface RS485 and ETH interface, four input and one output signal, three-phase power supply from measured voltages, auxiliary power supply with rated DC voltage 12 V to 24 V. The MEg45PAN panel design has a display with three control buttons.
  • Page 53 − Cable USB OTG AF to mini-BM, 15 cm for flash drive connection Can be ordered with I = 100 A, 200 A Technical data are provided in Chapter “GSM and GPS antennas of the MEg45PAN PQ monitor” Other lengths are available Specification of an order of MEg45PAN MEg45PAN / X / W3 to W10 / cl.
  • Page 54 Měřící Energetické Aparáty Tab. 2: Current ranges of LCT split-core transformers (× = yes, ⁄ = no) Primary current Diame- ter [mm] 10 A 20 A 60 A 75 A 100 A 120 A 200 A 300 A 400 A 500 A 600 A ×...
  • Page 55 The MEg45PAN universal monitor meets, according to EN 61010-2-30, the measuring category and the overvoltage category of CAT IV 300 V. The MEg45PAN universal monitor is classified, according to EN 62586-1, as PQI-A- FI1-H or PQI-S-FI1-H. The development and production of the monitor is in conformity with ISO 9001, ISO 14001:2005, OHSAS 18001:2008, ISO/IEC 27001:2014.
  • Page 56 Měřící Energetické Aparáty Protection = 160 V to 460 V 3 cylinder fuses 10 × 38gG 1,0 A fuse disconnector OPVP-3 = 12 V to 24 V 2 cylinder fuses 10 × 38gG 1,0 A fuse disconnector OPVP-2 Measuring characteristics A/D converter: 16 bit Sampling frequency:...
  • Page 57 The current measurement parameters of the MEg45PAN set with current sensors MTPD.51, AMOS/1A, LTE, TOR and AMOSm are supplemented by the parameters listed in the following chapter Current sensors of the MEg45PAN universal PQ monitor. Active power, reactive power, PF, energy Active power ±0.5 % M.H.
  • Page 58 Měřící Energetické Aparáty USB interface Type: USB2.0 Communication speed: 5.4 Mbit/s Connector: USBmini B Flash drive: maximum supply current 100 mA RS485 interface Default settings: 115.2 kbit/s, 8 bit, no parity, one stop bit MODBUS RTU protocol: Application Protocol Specification V1.1b3 ETH communication Speed: 10/100 Mbps Ethernet,...
  • Page 59 Class S Class A RMS1/2 Note: According to EN 61557-12, the MEg45PAN universal monitor is a measuring device of the PMD SD class (performance measuring and monitoring device) with current measurement by means of sensors and direct voltage measurement. It integrates the functions of recording, electric energy measurement, voltage...
  • Page 60 Měřící Energetické Aparáty Measurement uncertainty and measuring ranges of voltage quality parameters dur- ing test conditions 1, 2 and 3 according to EN 61000-4-30, ed. 3 With uninterruptible power supply, duration depends on the external power supply...
  • Page 61 MEg45PAN Universal Monitor – User manual Overview of evaluated quantities in record function evaluated values during measurement of phase voltage evaluated values during measurement of line voltage Quantity Symbol Effective voltage F, S F, S Voltage harmonics – 1st to 64th harmonic...
  • Page 62 Měřící Energetické Aparáty Quantity Symbol Active energy – consumption F, S F, S Active energy – supply F, S F, S Reactive inductive energy during EQL/EP+ F, S F, S active consumption Reactive capacitive energy during EQC/EP+ F, S F, S active consumption Reactive inductive energy during active supply EQL/EP-...
  • Page 63 [1] User description of PQ – MEg, www.e-mega.cz/DL [2] User description of MEgA Explorer, www.e-mega.cz/DL [3] User description of MEgA Merci Multi, www.e-mega.cz/DL [4] User description of MODBUS TCP protocol for MEgA instruments, www.e-mega.cz/DL [5] User description of ČSN EN 60870-5-104 protocol for instruments on request...
  • Page 64 Měřící Energetické Aparáty AGSM AND AGPS ANTENNAS OF THE MEg45PAN UNIVERSAL MONITOR Antennas AO-AKOM-36SS/MEgA AO-ALTE-G214S/MEgA GSM/UMTS/LTE/GPS GSM/UMTS/LTE Frequency bands MHz 800 / 900 / 1700 / 1800 700 / 800 / 900 / 1700 1900 / 2100 / 2600 1800 / 1900 / 2100 / 2600 2700 /1757.42...
  • Page 65 MEg45PAN Universal Monitor – User manual Antennas AP-AGPS-36/MEgA AP-A20C-M5RA/MEgA Frequency bands MHz 1575.42 1575.24 Gain 30 dBi 32 dBi VSWR < 2.0 : 1 < 2.0 : 1 Impedance 50 Ω 50 Ω Direction omnidirectional omnidirectional HPBW H 360° V 30°...
  • Page 66 Měřící Energetické Aparáty CURRENT SENSORS OF THE MEg45PAN UNIVERSAL PQ MONITOR Technical data of the MTPD.51 split-core current transformer Rated primary current I 400 A, 600 A, 1000 A Rated secondary current: Rated frequency: 50 Hz Frequency range: 42.5 Hz to 69 Hz Rated load: 2.5 VA...
  • Page 67 MEg45PAN Universal Monitor – User manual Safety class: Weight: 0.5 kg Outer dimensions: 100 × 95 × 29 mm Dimensions of transformer window: 52 × 33 mm Supply cable (optional): Maximum length of supply cable: 10.0 m Supply cable diameter: 7.0 mm...
  • Page 68 Měřící Energetické Aparáty Technical data of AMOS/1A flexible sensors The flexible AMOS/1A sensor consists of an AMOSm sensor with the specified length of measuring loop with shielded cable and of a converter unit with the output voltage of 1 A. Rated input alternating current I 100 A, 160 A, 250 A 1) 2)
  • Page 69 MEg45PAN Universal Monitor – User manual Consumption at I and R = 2.5 Ω: ≤ 5 W Idle consumption: 70 mA at U = 12 V 50 mA at U = 24 V Total efficiency at I and R = 1.0 Ω:...
  • Page 70 Měřící Energetické Aparáty Technical data of TORv and TORm toroids TORv TORm Rated input current I 10 A, 50 A 1 A, 5 A Output voltage 225 mV , 150 mV , 22.5 mV Measuring range: 5 % to 120 % I Measurement error at f = 50 Hz 0.5 % from the range Harmonic measurement uncertainty...
  • Page 71 MEg45PAN Universal Monitor – User manual TORm toroid TORm CATIV/300V S/N 00000 TORv toroid TORv CATIV/300V S/N 00000...
  • Page 72 Měřící Energetické Aparáty Technical data of LCT split-core current transformers Rated primary current I LCT-10 5 A, 20 A, 60 A, 75 A LCT-16 100 A, 120 A, 200 A LCT-24 100 A, 200 A, 400 A LCT-36 300 A, 400 A, 500 A, 600 A Rated secondary voltage 225 mV, 150 mV, 22.5 mV Precision class:...
  • Page 73 MEg45PAN Universal Monitor – User manual LCT-10 split-core transformer, hole diameter 10 mm LCT-16 split-core transformer, hole diameter 16 mm...
  • Page 74 Měřící Energetické Aparáty LCT-24 split-core transformer, hole diameter 24 mm LCT-36 split-core transformer, hole diameter 36 mm...
  • Page 75 MEg45PAN Universal Monitor – User manual Technical data of the loops of flexible sensors AMOSm / short, AMOSm / standard a AMOSm / long in a measuring set with the MEg45PAN universal PQ monitor SW setting of the rated value.
  • Page 76 Měřící Energetické Aparáty Loop diameter: 8 mm Enclosure free end diameter: 10 mm Permissible loop bending radius: > 20 mm Cable length: Flexible sensor AMOSm/long (loop length 60 cm) AMOSm/long/45PAN CATIV/300V S/N 00000 Flexible sensor AMOSm/standard Flexible sensor AMOSm/short (loop length 40 cm) (loop length 20 cm) AMOSm/short/45PAN AMOSm/standard/45PAN...
  • Page 77 MEg45PAN Universal Monitor – User manual Technical data of CAT IV / 300 V relay Input circuit; terminals A1, A3 REL IV DC Maximum and minimum control voltage: 30 V / 10 V Minimum withstand voltage: Control DC voltage 10 V...
  • Page 78 Měřící Energetické Aparáty General data Dimensions: 90 × 60 × 18 mm Relay installation: TS35 DIN rail Number of cycles: 10 · 10 Time closing/opening REL IV DC: 8 ms / 5 ms Time closing/opening REL IV AC: 10 ms / 15 ms Consumption: ≤...
  • Page 79 MEg45PAN Universal Monitor – User manual APPENDIX Examples of the evaluation of data measured by the MEg45PAN program MEgA Explorer Measuring function Záznamník (Recorder) Average and extreme values with time data, voltage, currents, active and reactive power Time course of average, minimum and maximum voltage, average and maximum currents...
  • Page 80 Měřící Energetické Aparáty Measuring function Napěťové jevy (Voltage phenomena) Standard parameters of voltage phenomena Contingency table of voltage drops Contingency table of voltage increases Contingency table of voltage interruptions...
  • Page 81 MEg45PAN Universal Monitor – User manual Measuring function Elektroměr (Electric meter) Total energy of three phases and individual phases with a phasor diagram Quarter-hour and daily table of three-phase active energy Measuring function Kvalita napětí (Voltage quality), selected examples Graphic overview of continuous voltage quality parameters throughout the entire period of mea-...
  • Page 82 Měřící Energetické Aparáty Weekly evaluation of voltage quality Histogram of phase voltage Standardized spectrum of harmonic phase voltages...
  • Page 83 MEg45PAN Universal Monitor – User manual Spectrum of phase currents Time course of THDU and THDI harmonic distortion factors...
  • Page 84 Měřící Energetické Aparáty Characteristics of the first voltage drop Course of voltage U and I during the first voltage drop RMS1/2 RMS1/2...
  • Page 85 MEg45PAN Universal Monitor – User manual Oscillographic record with pre-trigger of the first voltage drop...
  • Page 86 12/ Technical parameters ..................55 13/ Literature ......................63 14/ Manufacturer ..................... 63 AGSM and AGPS antennas of the MEg45PAN universal monitor ......64 Current sensors of the MEg45PAN universal PQ monitor........66 Technical data of the MTPD.51 split-core current transformer ........66 Technical data of flexible AMOS/1A sensors ............68...
  • Page 87 MEg45PAN Universal Monitor – User manual...
  • Page 88 MEg45PAN Universal Monitor User manual MEgA – Měřící Energetické Aparáty, a.s. 664 31 Česká 390 Czech Republic www.e-mega.cz Edition: 02/2024...