Measurement and electric control. Control systems

Transcription

1 Measurement and electric control Control systems

2 Content DH96 CPP Digital unit used to control the maximum demand...m6-6 CVM R8 CPP Digital unit used to control the maximum demand...m6-8 CA- 4 / MR-3 EDS Units used to control the maximum demand...m6-10 Efficiency Data Server...M6-14 DG-01 Independent system for measuring and displaying temperature and humidity, M6-16 M6-2

3 Control systems Maximum demand control We can find three items in most corporate electricity bills: Consumption of active energy (kw h) Power factor consumption (kvar h) Power rating, contracted power or Maximum demand. Traditionally, utilities companies have focused their energy saving efforts on the following: Reduction of the quantity of kw h be taken into account to reduce the electricity bill: Adequate management of the power needed by a company. The optimum management of contracted power can allow us to: Reduce contracted power and ad- just the levels of power required M.6 Prevent Maximum demand penal- ties (when a maximeter is hired) consumed Improvement the electrical system s Power Factor However, there is a third factor that can Definition The maximum demand is the power accumulated during a determined period, usually between 8 and 30 minutes. an impulse during each period to synchronise the start of the maximum demand period. The most common period in most countries is 15 minutes. Sliding window The power is calculated by the maximeter, which records the greatest value in a month, which is the month billed. Calculation of the maximum demand There are different ways of calculating the maximum demand: Fixed Window The energy supply company provides There are no synchronisation impulses, so that the last 15 minutes are used (in the case of 15 min periods). The value is updated with the last 15 minutes each second. Time Synchronisation Window This is a variation of the fixed window. The supply company provides the synchronisation impulse at the start of the day, which indicates the start of the first period. During the rest of the day, the synchronisations of each period will be provided by the unit's clock instead of the electrical company. A new impulse will be sent by the company at the end of the day, in order to readjust the unit's clock with the company's clock Thermal demand The thermal demand is calculated by a bimetallic analogue maximeter or the electronic simulation of a bimetallic maximeter M6-3

4 How can we control the maximum demand? The purpose of power control systems is to ensure that the maximum contracted power limit is not exceeded. has large variations in the maximum demand and low load factors, such as smelting, mining, automotive, textile and paper companies, among others. Loads that can be disconnected: Packaging machines Grinding machines OtherIn general, all machines that do not affect the main production process or which are not essential. In addition, an electrical demand control program is highly recommended in the processes with an operation that Without power control With power control Units used to control the maximum demand CIRCUTOR, SA offers all units required for the optimum management of energy in your company. The different units measure instantaneous power and automatically calculate the power used that is exceeding the contracted power. Therefore, any load can be quickly and reliably disconnected with built-in relays.in addition, the CVM-R8 CPP and CA-4 units can control different rates and guarantee a more accurate control of your installation, depending on the contracted rate. Operating methods There are 2 ways to prevent exceeding the maximum demand: Preventive The preventive method is used in companies that do not wish to connect or disconnect loads automatically.the system prevents any value above the contracted power with a system of visual or acoustic signals, so that an operator can manually disconnect determined loads. Predictive The predictive method is the most common and intelligent method.it makes a forecast of the situation at the end of the period and optimises loads, so that the maximum number of loads can be connected, ensuring that the maximum limit programmed is not exceeded.this system is obviously valid for fixed window requests or windows with synchronisation. M6-4

5 Applications How does it affect your bill? This is a real example, with an excess power consumption that affects the monthly electricity bill: Contracted power: 136 kw Maximeter reading: 253 kw Maximum power allowed no additional charges * : 136 kw x 1.05 = kw Excess power consumption * : 253 kw kw = kw penalty kw * : kw x 2 = kw Total kw billed: kw kw = kw The adequate management of the power consumption would not have exceeded 136 kw and would have been billed instead of as regards the "Power Bill" (71.25 % less). * In other countries, the penalty formula is different and it can be even stricter Product selection table No. of controlled loads Company impulse input Operating systems Operating method Software used Communications Page DH96 CPP 4 Yes Any Preventive or predictive Easy Comm RS-232 or RS-485 (1) 6 CVM-R8 CPP 17 (2) Yes Fixed window Predictive CPP-BT / CPP-CT 128 Yes Window sliding or fixed Preventive or predictive Power C RS (1) Type DH96 CPP-RS (2) With expansion module CVM-R10 M6-5

6 DH96 CPP Digital unit used to control the maximum demand Description Features Power supply circuit 230 Vac ( %) Consumption Frequency Measurement circuit Reading accuracy Resolution Overvoltage (permanent / during 10 s) Overload (permanent / during 10 s) 4 V A (without card), 7 V A (with card) Hz 0.5 % (±1 dig) 10 bits 1.2 U n / 2 U n 1.2 I n / 5 I n Measurement margin % No. of conversions per cycle 32 Display Digits 4 Display refresh Decimal place Seven 14 mm segments, red < 1s Programmable Scale excess indicator " " Insulation Test voltage Impulse test Output relays Between the input, measurement and optional card output 3 kv, 50 Hz, 1 min 4 kv (1.2 / 50 ms) 1 simple contact Isolation voltage 750 V contact-contact / V Contact-Coil Thermal current (lth) Maximum operation power Mechanical working life Electrical working life Digital inputs Ambient conditions 5 A 750 V A 2 x 107 operations Storage temperature ºC Operating temperature ºC Build features Box material operations at 5 A and 250 V 2 inputs, potential-free contacts (20 ma-24 Vdc) ABS V0, grey anthracite Degree of protection Box and terminals: IP 20 / Front panel: IP 54 Weight Standards IEC 1010, IEC 348, IEC 664, VDE 0110, VDE g M6-6

7 DH96 CPP Digital unit used to control the maximum demand Software References Communications Type Code - DH96 CPP M60201 RS-485 DH96 CPP-RS M60211 Coding table M 6 X X X X 0 0 X X Code Internal Code Auxiliary power supply Current input Standard (230 V) V ac V ac V ac V dc V dc V dc 9 Standard (.../ 5 A) 0... / 1 A 1 Dimensions Connections M6-7

8 CVM R8 CPP Digital unit used to control the maximum demand Description Features Power supply circuit Voltage Single-phase 220 Vac ( %) Frequency Consumption Output relay characteristics Number of relays 8 Isolation voltage (Ui) Thermal current (lth) AC 11 Ie / Ue DC 11 Ie / Ue Maximum operation power Mechanical working life Electrical working life Digital inputs Analogue inputs Display Hz 7 V A 270 V ac / 125 V dc 3 A 2 A / 250 V ac 2 A / 30 V dc 1 x 8 Character alphanumerical display (50 x 15 mm) Ambient conditions 750 V Aac, 90 W dc 2 x 107 operations 2 x 105 operations (at full load) 6 inputs, potential-free contacts (20 ma - 24 Vdc) 2 inputs Vdc Operating temperature ºC Build features Type of box Connection Fixing Cover Self-extinguishing plastic module Metallic terminals with "posidriv" screws Adjustable to DIN rails (EN 50022) (Optional fixing with screws) Lexan Front Degree of protection Embedded relay : IP 41 / Terminals : IP 20 Dimensions 140 x 70 x 110 mm (8 modules) Safety Category II (EN 61010) Standards IEC 255, IEC 348, UNE , IEC 664, VDE 0110, UL 94 M6-8

9 CVM R8 CPP Digital unit used to control the maximum demand Operation Dimensions Fixed window The unit is synchronised with the company's maximeter during its operation. To do so, it requires the maximeter's synchronism impulses. When it receives the impulse, it ends the period and starts a new one. Measurement by impulses The measurement of energy consumed during each integration period is calculated with the impulses emitted by a meter with an issuer contact or a different measurement unit with an energy impulse output. References Connections Type CVM R8 CPP Code M60311 M6-9

10 CA- 4 / MR-3 Units used to control the maximum demand Description Features Quickness of of load connection / disconnection response Impulse input to measure the maximum demand being measured by the company's meter (when the supply company allows for its installation). If the supply company does not allow its installation, we can install our own meter with the impulse output for such purposes Work with the most common maximum demand systems (sliding window and fixed window) With auxiliary power supply PS-24, DC Safety times to enter medium voltage lines in the system Simulation system, to carry out a test before starting the system and prevent unwanted operations Top performance / price, with incredible short-term investment returns CA-4 Power supply circuit 24 V dc (± 25 %) Consumption Output relays Isolation voltage Thermal current (lth) Maximum operation power Mechanical working life Electrical working life Digital inputs Ambient conditions 500 ma 4 relays 1,000 V contact-contact V Contact-Coil 3 A 1,500 V A 3 x 107 operations Operating temperature ºC Build features Fixing Cover 350 operations / hour (at full load) 4 inputs, potential-free contacts (10 ma - 24 V dc) Can be coupled to DIN rail (EN 50022) Lexan Front Safety Category I (EN 61010) Standards EN , EN , EN , EN , EN MR-3 Power supply circuit Consumption Output relays Digital inputs 24 V dc 65 ma 3 relays 10 A / 250 Vac 3 polarised inputs Communications RS-485 Ambient conditions Operating temperature ºC M6-10

11 Control systems CA-4 / MR-3 Units used to control the maximum demand Control of loads Control of up to 128 loads or groups of loads. System of priorities, to distinguish the loads with a lower priority and which can be commonly disconnected and the loads with the highest priority that must only be disconnected when needed, in order to avoid exceeding the contracted power. Modular system Modular system adapted to the number of loads in any installation. It only acquires what is needed. It has a modular system that can connect / disconnect loads near the loads them selves to simplify the cabling structure, reduce cabling distances and improve the response time. Optional creation of load groups with the same priority and FIFO or LIFO connection / disconnection sequences. Definition of up to 4 load states: Active, Inactive, Forced active and Forced inactive (for example, in the case of forced inactive, we can carry out the repair of a load with no need to worry about the fact that the said load can be reconnected)it detects when the load is connected or stopped. Software Communications and software included to display the information in a PC and store the connections and disconnections of our power control unit. Optional programming of a contracted power calendar for the next 2 years. Optional programming of contracted power calendars in accordance with the hours of the day, type of day, etc. Firstly, the user defines the basic power control parameters, such as the type of window, period of integration, etc. Likewise, the type of calendar of contracted power or the power ratings we wish to attain will be assigned, as well as the types of dates when the rates used by the electricity company will be applied. The software supports up to 8 types of rate on 8 different dates. Assignment of basic parameters Individual calendars available for loads, not only to start and stop them automatically, but also to guarantee the perfect control of power, knowing the loads in operation prior to said tasks. Assignment of the calendar Assignment of the rate M6-11

12 CA-4 / MR-3 Units used to control the maximum demand Secondly, the groups of loads are defined, the disconnection system of the loads of this group is assigned (FIFO or LIFO) and the disconnection order of the group in relation to others is also assigned (if it is the first one or the last one, etc.) We can see that the power disconnection order consumed by each load is displayed at all times, including the total power per group, informing the user whether this is a FIFO or LIFO sequence. These groups are created in accordance with the installation (for ex.: groups of compressors or lights, etc.). Next, the loads corresponding to any MR3 or the same CA4 are assigned to each group. The loads in each group are unlimited. Creation of load groups After creating the groups, the user must simply program the loads with their corresponding power, the relay that controls them and if a specific calendar can be created for each one. For example, we can force the disconnection of the machine during a determined time, with no option to connect it again during said period.this period can even be defined over a two year long period, thanks to the memory capacity of the CA-4. Lists of loads New load Calendar of loads When all parameters have been defined, we can create a simulation to check the correct operation and complete the system's configuration. The load status is clearly defined and the information displayed will vary, depending on the status: When the system has been started, the Power Control Software can be used to check the status of loads in real time, stop them manually or even maintain them permanently stopped, by simply selecting the corresponding software. Real-time monitoring M6-12

13 CA-4 / MR-3 Units used to control the maximum demand References Dimensions Description Type Code Load controller + software CA-4 M60411 MR-3 3-line expansion MR-3 M60412 Basic power control kit (3 Loads): 1 CA-4 controller 1 PS-24 Power Supply 24V dc 1 power control software installed in the box (280 x 280 x 150) CPP-B M60421 CA-4 Connections M6-13

14 EDS Efficiency Data Server Description EDS is an energy manager equipped with PowerStudio Embedded and a built-in web and XML server, which enables the user to query any electrical variable by connecting the metering equipment to its RS-485 bus without having to install any software. Thanks to the RS- 485 expansion bus, the user can view any variable from the units connected to the bus and can even display information in real time, in table or graphic format (data logger). There are 8 voltage-free digital inputs and 6 programmable relay digital outputs. Its most salient features include: Parameterisation and management of automatic events Alarm recording system and system event management alarms. RS-485 port for connecting up to 5 CIRCUTOR devices. Ethernet connection Centralisation of alarms through detection of logical states or centralization of consumption by impulses. Applications Domestic application: EDS can be used to control the partial consumption of each load in a domestic installation. ycontrol of domestic consumption. ycompare your consumption with that of the energy marketer. yrationalisation of home consumption. SME/Industrial application: EDS facilitates the control of partial consumptions of the different single-phase and three-phase loads during productive and non-productive periods. ycontrol the consumption of your installation 24/365 and locate residual consumption during non-production periods. ycheck the power level contracted in the installation. ysupervise the level of harmonics and the reactive load of your installation. yalarms for consumption or incidents in your electrical network. yno need for a computer ypossibility of connection when specified: the system acts automatically. yprovides information about your bill before you receive it. Multi-point application: in the case of load distribution (or remote installations) EDS can control the individual consumption of each of the installations and centralise them into a single one. yefficient, easy and simple control of the consumption of your remote sites. yenergy reports per consumption zone or site yremote alarms for excess consumption or incidents in the electrical network. ypossibility of comparing consumption for each site. Features Power Supply Frecuency Max. consumption Output features Type Maximum operating power Maximum operating voltage Maximum current commutation Electrical working life (250 Va.c. / 5 A) Mechanical working life Input features Type Max. current activation Isolation Enviroment conditions Hz VA Relay 740 VA 250 Va.c. 5 A with resistive load 3 x 10 4 maneuvers 2 x 10 7 maneuvers Free-voltage opto isolated 50 ma 1500 V Working temperature -10 ºC ºC Protection degree IP 51 Humidity Max. Altitude Display Mechanical features Material caja Dimensiones (mm) 5%... 95% (without condensation) 2000 m Peso (kg) 0,250 Interfaz de red Type Conector Network protocol Bus Interface Serie Type Transmition speed Data bit 8 Parity LCD with Backlight Autoextingible UL94 V0 plastic 105 x 70 x 90 mm (6 modules) Ethernet 10BaseTX RJ-45 HTTP / Modbus/RTU RS-485 Stop Bit 1 / 2 Safety Category RS-485 three wires (A/B/S) 4800, 9600,19.200, , , bps Without parity, pair, odd Category III 300 / 520 Vc.a. según EN Insulation type Category III / 520 V AC EN Class II double insulation against electric shock Standards IEC 60664, VDE 0110, UL 94, EN , EN 55011, EN , EN , EN , EN , EN , EN , EN M6-14

15 EDS Efficiency Data Server References Description Communications Protocol MODBUS / RTU Ethernet Internet No. of digital inputs No. of digital outputs Type Code Remote energy manager with PowerStudio Embedded technology RS-485 Yes Built-in Web server and XML 8 (voltagefree) 6 per relay EDS M61010 Remote energy manager with PowerStudio Embedded technology with generic modbus driver to communicate with other non-circutor devices RS-485 Yes Built-in Web server and XML 8 (voltagefree) 6 per relay EDS Delux M61020 Dimensions Connections Transmitter / Emisor C + CIN IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 CIN CVM-MINI CPU COMM m ax min c lear N r eset Nreset Nenergym N ax Pd Ethernet RS-485 CRL RL1 RL2 RL3 RL4 RL5 RL6 CRL A S B L N A ( + ) S GND B ( - ) M6-15

16 DG-01 Independent system for measuring and displaying temperature and humidity, according to Spanish Royal Decree 1826/2009 Description Display features The DG-01 series serves to display temperature and relative humidity values via a large-format display. Their easy installation and startup make them ideal for installation in sites where these parameters are highly relevant and aligned with a well-being policy and aimed at energy optimisation and saving. The display works via the connection of a Temperature (ºC) and Relative Humidity (%) probe (TH-DG), which can connect up to a maximum of 10 units. In this case, the display shows the average values recorded in the plant. Applications Ideal for all types of premises such as: Banks and savings banks Administrative buildings Museums Cinemas Theatres Sports stadiums Auditoriums Shops Shopping centres Department stores Conference rooms Pools and sports centres Restaurants Stations and airports Suitable for displaying variables in premises with a large accumulation of people measuring over 1,000 m2, according to Spanish Royal Decree 1826/2009 of 27 November. Electrical features Power supply voltage 85 to 253 V ac Auxiliary power supply voltage Consumption Communications Port Protocol Display functions LED colour Digit size Environmental conditions Operating temperature Humidity Maximum altitude Standards 24 Vdc 24 VA (DG-01-2) RS-485 Modbus / RTU Red (yellow option) 100 mm 0 to +50ºC 25 to 95% (without condensation) 2,000 mm Noise immunity EN Electrostatic emissions EN Resistance to network outages EN Safety requirements EN A1 Standard Features of the enclosures Box Aluminium Outside colour Black Protection degree IP 40 Installation External use Cable entry Rear part M6-16

17 DG-01 Independent system for measuring and displaying temperature and humidity, according to Spanish Royal Decree 1826/2009 Sensor features Electrical features Power supply voltage 9 to 24 V ac /dc Consumption < 0.5 VA Communications Port RS-485 Protocol Modbus / RTU Environmental conditions Operating temperature -30ºC to +85ºC Humidity 5 to 95% (without condensation) Maximum altitude 2,000 mm Standards Noise immunity EN Electrostatic emissions EN Features of the enclosures Box Self-extinguishing polycarbonate Outside colour Grey Protection degree IP 65 Installation Internal and external use Cable input Upper part References Description Temperature and humidity display Relative humidity and temperature sensor Communications MODBUS/RTU protocol Type Code RS-485 DG-01-2-Display-TH M61210 RS-485 TH-DG M61310 Dimensions Applications Model DG-TH-2- Display-TH Dimensions (width x height x depth) 482 x 368 x 41 mm TH-DG- Relative humidity and temperature sensor 58 x 64 x 35 mm (box only) 58 x 118 x 35 mm (set) Standard application * Possibility to connect to Ethernet network Application with possibility to connect multiple sensors (max. 10) M6-17

18 M6-18 Control systems