What is and Why use the Energy Management Components Green levies, tighter operating margins and profits are a few economic drivers forcing operators to use more intelligent power management strategies. Real-time measurements of electrical parameters, such as voltage variations or distortions, can be transmitted via networks to operators, warning of breaches in threshold limits.
Why different buses and solutions • RS422-RS485 communication in a local network: all the measurements made by single instruments can be gathered through a standard Modbus to a PLC or a PC in order to carry out specific variable analysis and control (Wattsoft).
Energy Management and Dupline Field Bus . . . making energy metering easy in very noisy plants Du line ® When an idea becomes a great idea … The introduction of the Climate Change Levy is affecting consumers of energy in one way or another. The basic outcome is that users who are inefficient in their use of energy will pay more than efficient users.
Energy Management The other Fieldbus compatible instruments: DIN-rail mounting: EM1-WM1-SPT-PQT Flush mounting: WM2-WM3WM24-WM4. The main Bus devices Individual counter G 4420 74014 inputs for: 4*kWh meters; 2*kWh + 2*kvarh meters. Reset feature. Data retention in case of power failure.
The Energy Management components for . . . Commercial Buildings: Shopping Centres, Resorts, Supermarkets, Restaurants Lighting Commercial Buildings 6 Heating Services and Infrastructures: Conditioning Alarms Schools, Hospitals, Stadiums Billing In many commercial buildings as a matter of fact the need to control and measure the energy consumption by single user is becoming more and more important because of the need to save money or issue the energy bill when needed.
Production Facilities: Lighting Cost Allocation Heating Since the cost pressure on production is becoming higher and higher, the energy consumption measured by type of production allows to allocate and control the costs in a proper and more accurat way. Our Building Automation system based on Dupline bus and relevant modules in combination with our energy metering system allows to manage the lighting system as well as other loads so to achieve further energy cost savings.
The Energy Management components for . . . Big and Heavy Industry: Steel, Shipyards, Mines, Wood, Car Lighting Heating In the big and heavy industry as well as in the airports it is of fundamental importance to have a powerful control of the mains since medium voltage systems and very high currents are involved. Because of the type of loads, a low content of harmonics is crucial to let the installation work in a proper and reliable way.
Water: Potable Water Plants, Water Distribution Plants Pump Level A water treatment and distribution system is, because of dimensions of plants, distances among the various pumping stations and parameters to be involved, very hard to manage.
EM1 DIN Page 16 EM2 96 Page 16 EM2 DIN Page 16 Energy meter Power Analyzer Multi Function Meter Power Quality Analyzer Universal Utility Meter Transducer Power Quality Transducer Modular Graphic Display Digital Inputs Pulse outputs Analogue Outputs Alarm Outputs Serial Communication Internet-Ethernet Communication GSM/SMS Management Energy Gas and H2O Metering Instantaneous Variables 10 EM4 DIN Page 18 EM3 DIN Page 17 WM12 DIN/96 Page 20 WM1 DIN Page 19
WM14 DIN/96 Page 21 WM2 96 Page 19 WM2 DIN Page 19 WM23 96 Page 23 WM22 DIN Page 22 WM3 96 Page 26/27 WM24 96 Page 24 SPT 90 Page 25 WM4 96 Page 28/29 CVT DIN Page 33 PQT 90 Page 30/31 11
The Product Advantages EM1 DIN • Direct connection up to 22.
EM3 DIN, EM4 DIN, WM22 DIN The screw terminals Connections for cables with cross-section area from 6 to 35mm2 instead of passing-by types assuring a “contactor type” wiring and connection protection. The sealing capability The new housing concept grants a full sealing capability and connection protection. WM22 DIN WM24 96 Example of variables displayed with serial communication diagnostics: r.t (Rx/Tx).
A new concept of Modularity In addition to the obvious need to improve the performances of the measuring instruments in order to keep them up-to-date with the state-of-the-art technology, it is more and more important to offer user-friendly instruments being easily and quickly adaptable to the application and management needs of the customers.
Technical Advantages and Cost Benefits • • • • PLUG and PLAY modules common to all models; Maximum in-field flexibility; Possibility to expand the number and the kind of outputs according to new application needs without replacement of the instruments in-field. Small number of models in-house, with a high offer of possible combinations at the same time. Investments in the instrumentation are only limited to the present needs with the possibility to expand it in the future for any additional requirements.
EM3 DIN EM3 DIN is an energy meter that has been developed to meet the requirements of those applications where a very simple and reliable instrument is needed. The main advantages • Electromechanical display allowing the user to read the consumed energy even when the load or the meter is not power supplied.
EM4 DIN EM4 DIN is an advanced utility meter capable to measure not only the usual consumed energies but also gas and water by means of the optional dual contact inputs module. The main advantages • High accuracy and resolution for a fine cost calculation. • Simultaneous indication of both active and reactive energy allowing the user to read the variables at a glance.
WM1/WM2 DIN WM2 96 WM1 DIN, WM2 DIN, WM2 96 are general purpose analyzers capable to measure all the electrical parameters of an electrical line or load. Their user friendliness allows it to be mounted in the switch and control gears as local indicators instead of the classical single function instruments.
WM12 96 WM12 DIN WM12 DIN and WM12 96 are general purpose multi function meters that allow to monitor all the mains parameters of an electrical line or load. The compact housings combined with a complete selection of measurements allow the instruments to be mounted in all the switch and control gears as local indicators, instead of the classical single function analogue or digital panel meters.
WM14 DIN WM14 DIN and WM14 96 are basic power analyzers that can be used in all the applications where it is needed to measure the main electrical parameters and to transmit them to a PC. WM14 is cheap, compact and is available either for panel mounting or DIN-rail mounting. WM14 is the natural evolution of WM12.
WM22 DIN WM22 DIN is a modular power analyzer that allows to monitor all the mains parameters of an electrical line or load and to control one of them. The amazing design of the housing combined with outstanding performances makes WM22 DIN an instrument to be used in all the applications up to 5000A and up to 200kVL-L. The four remarkable features of WM22 DIN • Direct measurement of up to 90A. No external current transformer needed.
WM23 96 WM23 96 is a modular power quality analyzer that allows the operator to continuously monitor the mains. All measurements with a direct connection up to 830VAC (phasephase), up to 20kV (VT connection) and up to 5.000A (CT connection) allow the operator to use WM23-96 in all the light and medium industry applications. This flexible instrument has a standard IP65 protection degree, a 0.
WM24 96 WM24 96 is a modular universal utility meter that allows the operator to continuously monitor the mains and measure energy, gas and water by total or partial metering. All measurements with a direct connection up to 830VAC (phasephase), up to 20kV (VT connection) and up to 5.000A (CT connection) allow the operator to use WM24 96 in all the light and medium industry applications.
SPT 90 Smart Power Transducer SPT 90 Housing (H x W x D) Display type Variables on display Instantantaneous variables Energy variables Accuracy Temperature drift Sampling rate System type Voltage inputs (Un) Current inputs (In) Digital inputs Primary of CT/VT Measurements: Variables Harmonic distortion Outputs: Pulse Alarm Analogue Serial Digital filter Other characteristics Power supply Approvals Protection degree 90x90x140mm LED N.A. N.A. N.A. VLN, A, Hz: 0.5% F.S. ≤300ppm/°C Response time: ≤200ms Bal.
WM3 96 WM3 96 is a modular analyzer of the power quality that, thanks to a 32-bit µ-Processor, allows the operator to continuously and completely monitor the mains. All measurements with a direct connection up to 830VAC (phase-phase), up to 600kV (VT connection) and up to 30kA (CT connection) allow the operator to use WM3 96 in any kind of installation.
Analysis of the power quality and control of the electrical parameters The problems that more frequently occur in electrical systems with: • inverters and power converters; • switching power supplies for computer and communication system applications; are the following: • failures on compensation capacitors; • blowing of capacitor fuses; • overheating of power supply transformers with a load current below the rated value; • overheating of motors and frequent failures; • high neutral conductor currents; • pr
WM4 96 WM4 96 is a Universal Utility meter and Power Quality Analyzer. This high-tech instrument has been developed to meet the most advanced application needs.
Variables that can be monitored and displayed Main variables System Single ph Average Max Min Alarm Out RS485 Pulse VLL, VLN V asymmetry A An Hz VA var W PF +kWh (*) -kWh (*) +kvarh (*) -kvarh (*) GAS (*) H2O THD (A-V) THD even (A-V) THD odd (A-V) Single harmonic (*) Total and time-period energies Official watt-hour meter interface. The 3 interfacing methods of WM4 96 are: • Direct measurement for the power quality analysis (LV or MV/HV connection).
PQT 90 Power Quality Transducer PQT 90 Housing (H x W x D) Display type Variables on display Instantaneous variables Energy variables Accuracy Temperature drift Sampling rate System type Voltage inputs (Un) Current inputs (In) Digital inputs Primary of CT/VT Measurements: Variables Harmonic distortion Outputs: Pulse Alarm Analogue Serial Digital filter Other characteristics Power supply Approvals Protection degree 30 90x90x140mm N.A. N.A. N.A. N.A. VLN-A: ±(0.5%RDG+1DGT) Hz: ±0.1% F.S. THD: ±1%F.S.
Power variable analysis and great communication capabilities: this is the strength of PQT 90 • Energies-water-gas and instantaneous variables readable on the display of your GSM mobile phone giving you maximum control freedom, saving time and money. • Alarms transmitted as soon as they occur via GSM or analogue modem, notifying the plant abnormal conditions.
AR1060 WEB-server The “96 series” modular system can be equipped now with a brand new Ethernet/Internet module with WEB server capability. This module can be used in combination to our high-end instruments WM4 96 and PQT 90. AR1060 is used instead of the RS485 communication module and improves significantly the already high communication and data logging capability of WM4 and PQT adding the possibility to connect those instruments to a LAN (local area network) or, according to the needs, to the WEB.
CVT DIN CVT DIN is a series of compact and simple transducers for the measurement of voltage, current and frequency. In a module which is 71.5 mm wide, suitable for DIN rail mounting, it offers three basic hardwares to measure: AC voltage and current; DC voltage and current; frequency. The current and voltage models allow to adjust the transducer calibration from 50 to 130 % of the rated inputs simply using a digital multimeter set on the resistance measurement.
PQA700 PQA700 is a complete power quality analyzer suitable to check the electrical phenomena according to what is required by the EN50160 Standard (Harmonics, Supply voltage dips, Supply voltage variations and Supply interruptions).
Electrical phenomena If we briefly go back to the characteristics of electric voltage in the origin of the installation and in order to closely examine this matter, the Regulation divides these features into two groups; The first one for which some quantitative information are supplied: • Frequency • Harmonic distortion • Phase Asymmetry The second one for which a few approximate data are supplied: • Quick voltage variations • Voltage dips • Supply interruptions • Overvoltages All these variables have a di
The instantaneous variables are displayed clearly and neatly; moreover they are displayed with characters at various heights, according to their importance, and they are grouped per page, by system variables and phase variables so that they can be easily compared among them. Particular attention has been given to the way of displaying the variables: in case of TPF and DPF the values of each phase are displayed together with the FRESNEL diagram.
Portable Power Quality Analyzer PQA700 MAIN FEATURES Display Display language Other indications Accuracy Sampling frequency Sampling time Measuring inputs Type of connections Measuring method Available measurements Data recording Archives function (by means of PqaSoft) Other functions (by means of PqaSoft) Oscilloscope function Measurements according to EN50160 Outputs (insulated) Printer Power supply Approvals Installation Category EMC Operating temperature Storage temperature Carrying case / weight S
Energy Management Software WattSoft2 and WattSoft3 combined with our hardware, are the most updated answer to all the power and energy parameters control needs. WattSoft3 is able to figure-out two basic problems: the management of up to 255 energy meters or power analyzers by means of a MODBUS (RS485) linking system; the supervision and control of all the electrical variables being measured in order to optimize the energy consumption and therefore to save money.
Wm4Soft and PqtSoft Remote allow in a very intuitive and fully guided way to configure the instrument, to choose the SMS alarms and to select the 8 variables to be logged in the 2Mb memory. A real-time table showing all the variables is available too. The PC where the software runs can be connected to the instrument by RS232, RS485 (also multi-drop), analogue or GSM modems.
Accessories Types Description Housing Signal input Working mode Line Bias Line termination Connections Output Working mode Line Bias Line termination Connections Baud rate Protection Indication (by means of LEDs) Insulation Operating temperature Storage temperature Included set SIU-PC85 SIU-DIN 8585 SIU-DIN.RLY Serial communication line adapter Front: 65x80mm RS232 2-wire comm. N.A. N.A. 9-pole, female RS422 RS485 Serial communication line amplifier, driver Front: 89x71.
Split Core Current Transformer SCT74/30 Types Class Bus–bar size Dimensions (H x W x D) Standards Primary current 1/ 3/ 0.5 (on request) 31 x 26mm 100 x 61 x 74 mm BS3938, EN60044-1, DIN42600 Burden (VA) Class 0.5 1 3 100 A 1.5 125 A 1.5 150 A 2.5 200 A 1.5 5 250 A 1.5 5 300 A 1.5 7.5 400 A 1.5 5 10 SCT140/80 1/ 3/ 0.5 (on request) 51 x 51mm 128 x 56 x 104 mm BS3938, EN60044-1, DIN42600 Burden (VA) Class 0.5 1 3 150 A 1.5 200 A 1.5 250 A 1.5 3.75 300 A 1.5 5 400 A 1.5 2.5 5 500 A 2.5 5 10 600 A 2.
Current Transformer Types Class Bus–bar size Dimensions (H x W x D) Standards Accuracy class depending on the burden output Primary current at rated output current of 1A/5A Types Class Bus–bar size Dimensions (H x W x D) Standards Accuracy class depending on the burden output Primary current at rated output current of 1A/5A TADK 0.5 115.5x75x44 mm IEC 60185/EN 60185 Class 0.5 Burden VA 1 A 10 5 A 10 10 A 10 15 A 10 25 A 10 40 A 10 TAD 6 0.5/1 55x24 or 65x20 mm 105x145x44 mm IEC 60185/EN 60185 Class 0.
EM2 96 EM1 DIN, EM2 DIN, EM2 96, are energy meters suitable to measure the consumed energy in various services and light/medium industries. These instruments are normally connected downstream the official watthours meter to measure the energy consumed by machines or departments, in order to split the costs accordingly. EM1 DIN is the electromechanical space-saving solution: in only 2-DIN module housing there is a reliable active energy meter with optional pulse output.
Accuracy of the main variables Standard-compliant energy metering Housing front protection degree Max measured current in case of direct connection Digit number of display Harmonic analysis Asymmetry control Max and/or minimum signal detection and storage Data logging Internal clock Energy metering by time period Load profile displaying and recording Digital filter with action on display and signals output Energy, gas, water metering Instantaneous variables metering Digital inputs for gas/water
OUR SALES NETWORK Carlo Gavazzi GmbH - AUSTRIA Ketzergasse 374, A-1230 Wien Tel: +43 1 888 4112 Fax: +43 1 889 10 53 office@carlogavazzi.at Carlo Gavazzi OY AB - FINLAND Petaksentie 2-4, FI-00630 Helsinki Tel: +358 9 756 2000 Fax: +358 9 756 20010 myynti@carlogavazzi.fi Carlo Gavazzi SpA - ITALY Via Milano 13, I-20020 Lainate Tel: +39 02 931 761 Fax: +39 02 931 763 01 info@gavazziacbu.
