I. Analysis of electricity consumption characteristics of industrial users. Analysis of cement consumption in cement industry, which belongs to the non-metallic mineral manufacturing industry. It belongs to the heavy industry, which refers to the addition of appropriate amount of gypsum or certain mixture of cement clinker. The material is produced by grinding equipment (cement mill) to a specified fineness to produce hydraulic cement. The industry is increasingly mass-produced, and its production process is extremely universal. It is nothing more than ore mining, transmission ~ ore crushing - rotary rotary kiln firing - clinker grinding - finished packaging, and the production nature is three-shift continuous operation. The industry generally has 110kV or 220kV substations (with security power supply), and some have waste heat from the power plant, and the substation is depressurized for each branch. Its electrical load is relatively large, generally around 80,000 kilowatts or even larger; the production nature is generally three-shift continuous operation. 
(3) Gap Level II Participation Plan 1. Staged peak: 1) On the premise of ensuring safety, based on the implementation of the Level III plan, all cement mills, raw mills and mines during the peak period The long-distance conveyor belt transmission system participates in the peak. Under the premise of completing the peak-to-peak indicator, combined with its own production process, it can selectively release part of the equipment load at different time periods.
2) For the long-distance transmission belt transmission system equipment with slow response time, it is necessary to participate in the peak preparation in advance to ensure that all load-limited loads can participate in the peak at full time.
2. Emergency peak 1) After receiving the peak error command, it is necessary to quickly input the limit load, and then gradually release the load according to the instruction to resume normal production. 2) On the basis of the implementation of the III-level plan, after receiving the wrong peak command, quickly put all the cement mills and raw material mills into operation, and if necessary, stop the main power equipment of the rotary rotary kiln, and enable the auxiliary transmission equipment to achieve the load-limiting purpose. Then gradually release the load according to the instructions to resume normal production.
(4) Gap Level I Participation Plan 1. Staged peak: 1) Considering the large power gap, the company can be arranged for maintenance throughout the plant, leaving only the power load required to repair the equipment. 2) In the peak period, firstly input the load-limited equipment such as the cement mill, the raw material mill and the main power equipment of the rotary rotary kiln with high limit load and fast response time; and gradually input the long-distance transmission of the mine with slow response time. With a conveyor system, all load-limited loads are guaranteed to participate in the peak.
2. Emergency peaks need to be quickly put into the limit load of the cement mill, raw mill and main power equipment of rotary rotary kiln after receiving the peak-level command, and then gradually release according to the instructions. The load resumes normal production.
Fourth, fourth, industry users participate in the peak power limit risks and precautions Industry users participate in the peak power limit risks and precautions 1. Stop the clinker and raw material grinding system risks and precautions must be prepared in advance, until all materials are exhausted After that, it can stop the machine. Otherwise, the hoist will not be able to start under heavy load, or the conveyor will be blocked by the powder, which will cause the system to transfer the powder normally after a long time. The preparation time usually takes 10 minutes.
2. The long-distance conveyor belt transmission system of the mine must be prepared in advance. After all the mineral materials on the conveyor belt have been exhausted, it can be shut down. Otherwise, the conveyor belt will not be able to be turned on again under heavy load. The preparation time is determined by the transmission distance, generally not less than 30 minutes. 3. The rotary rotary kiln cannot be stopped urgently, and the rotary kiln auxiliary transmission should be activated within 10 minutes after the main power equipment is stopped. Otherwise, because the length of the rotary rotary kiln reaches tens of meters, in the case of emergency stop, the kiln body will be deformed, the internal refractory bricks will loosen, and the clinker will harden and block the kiln body. It takes a long time (72 hours) to empty the material when it is full.
Therefore, the industry should not use forced power or remote control equipment to control power cuts. Enterprises should formulate effective internal emergency plans, actively cooperate with peak implementation, prevent malicious accidents, and take the initiative to take social responsibility and minimize losses.
V. Function and application of intelligent power monitoring V. Function and application of intelligent power monitoring Zhongping Pingxiang Cement Co., Ltd. is a large electricity consumer in Pingxiang City, Jiangxi Province. The annual production cost of the old production line is tens of millions of RMB, so users pay great attention to the team. Electricity assessment. The power management system designed by Ankerui for its old production line performed well, and the power management system of the new 4500t/d production line was still designed by Ankerui. 5.1 Project Overview
5.2 Demand Analysis The Zhongping Pingxiang Cement New Line firstly measures the electrical energy of each loop of the total transformer substation. Depending on the usage of the production line, it is decided whether to extend the power management system to each 10kV power distribution system of the production line. The design of the new line 0.4kV power distribution system Do not do metering function. There are 27 10kV switchgears in the 10kV total power distribution room, of which 19 circuits need to be metered. The five circuits of the two main transformers 10kV and 110kV and 110kV total incoming lines need to be metered separately. The three standby circuits may be converted into waste heat to generate electricity in the future, and the reverse power needs to be measured.
The user will record the production electricity consumption every two hours, and perform the assessment according to three shifts in the morning, midnight and evening. The morning shift time is 8:00am~4:00pm, the middle shift is 4:00pm~12:00pm, and the night shift is 0:00am. ~8:00am. Compare the data of the total transformer substation with the data of the distribution room of the production line once a week, compare it with the power consumption data provided by the power supply bureau every month, and use this as the basis for assessing the energy consumption of each group. 5.3 System Structure The entire system is designed with a set of Acrel-3000 power management system, which adopts a layered and distributed structure, namely the field equipment layer, network management layer and monitoring management layer, as shown in Figure 1:
The screen display screen displays the 19-inch color liquid crystal display as a human-computer interaction interface, which displays various information screens of the power distribution system in real time, including real-time information of the current status of each circuit breaker and the current voltage, current, and power of each circuit. Sound and light prompts alarm information, protection device action and reset information. The detailed interface is shown in Figure 3: 
The power trend load trend curve provides the load trend of the loop for a certain period of time, which is convenient for the administrator to grasp the operation status of the power equipment. Through the analysis of historical data, it can provide scientific power consumption for new departments and equipment in the future. Estimate; evaluate the power consumption of the equipment by analyzing the power consumption of each equipment in the building and the equipment, model, service life and other equipment details; through the analysis of the year-on-year and ring-by-month reports of various departments in the building. Whether the electricity consumption of each equipment is reasonable; After using a certain energy-saving equipment or technology for a certain period of time, whether the energy-saving efficiency of the evaluation is consistent with the original estimate. The power trend is shown in Figure 4: 
((4 4) energy-saving product optional rail table or) energy-saving product optional rail table or APFAPF active filter device active filter device lighting box DDSF1352 main function of the meter: current specification 1.5 (6) A, 5 (20) A, 10(40)A, 20(80)A Optional, multi-rate energy statistics, energy pulse output, RS485 communication interface, Modbus protocol or DL/T 645 protocol optional. Dimensions: 76 × 89 × 74mm, 4 modules. Current and voltage measurement for lighting boxes; single-phase energy metering. ARDDTSF1352 main function of rail type electric meter: current specification 1.5 (6) A, 5 (20) A, 10 (40) A, 20 (80) A optional, multi-rate energy statistics, energy pulse output, RS485 communication interface, Modbus The protocol or DL/T 645 protocol is optional. Dimensions: 126 × 89 × 74mm, 7 modulus. Three-phase energy metering for lighting boxes.
Main functions of DTSD1352 rail type electric meter: LCD display, full electric parameter measurement (U, I, P, Q, PF, F, S); four quadrant energy metering, multi-rate energy statistics, maximum demand statistics; current specification 1.5 ( 6) A, 5 (20) A, 10 (40) A, 20 (80) A optional, RS485 communication interface, Modbus protocol or DL/T 645 protocol optional. Dimensions: 126 × 89 × 74mm, 7 modulus. Suitable for power cabinets. The ANAPF series of active power filter devices are connected to the grid in parallel. By detecting the harmonic and reactive components of the load in real time, PWM converter technology is used to generate a corresponding harmonic component and reactive component from the converter. The inverse component is injected into the power system in real time to achieve harmonic control and reactive power compensation.
Seven, equipment list
Second, second, the industry users participate in the peak-to-peak power-capacity analysis industry users participate in the peak-to-peak capacity analysis 1. The industry has a large electrical load and is a continuous load, regardless of time, season, climate. 2. The industry's emergency peak-to-peak power cut can quickly stop the load of high-power electrical equipment such as cement mills and raw mills. The emergency peak-breaking capacity is strong, but the kiln load cannot participate in emergency peak-to-peak power cuts. 3. The staged fault peaks of the users in the industry can be carried out by arranging centralized maintenance and production reduction. For example, the centralized maintenance mode is used, and only the maintenance equipment such as the kiln load and some living lights are reserved, and the maintenance is generally about 1000 kW. The load can be used; if the production mode is discontinued, the production line can be gradually stopped to reduce the production load and achieve the peak effect.
Third, third, industry users participate in the peak-to-peak power-limiting technology program industry users participate in the peak-peak power-limiting technology program (1) Gap level IV-level participation program 1. Staged peak: when the peak-shifting instruction is implemented, priority is given to the participation of some cement mills. Wrong peak. Under the premise of completing the peak-to-peak indicator, combined with its own production process, it can selectively release part of the equipment load at different time periods.
2. After receiving the wrong peak command, the emergency peak should be quickly put into the limit load, and the air-conditioning lighting equipment should be arranged preferentially. If the cement mill is not able to meet the requirements, the cement mill will participate in the peak, and then gradually release the load according to the instructions to resume normal production.
(II) Gap level III participation scheme 1. Staged peak: Under the premise of ensuring safety, all cement mills and some raw mills participate in the peak during the peak period on the basis of the implementation of the IV scheme. . Under the premise of completing the peak-to-peak indicator, combined with its own production process, it can selectively release part of the equipment load at different time periods.
2. Emergency peak 1) After receiving the peak error command, it is necessary to quickly input the limit load, and then gradually release the load according to the instruction to resume normal production. 2) On the basis of the implementation of the IV-level program, after receiving the wrong-peak command, it is necessary to quickly put all the cement mills into load limit, and then gradually release the load according to the instructions to resume normal production. Third, third, industry users participate in the peak-to-peak power-limiting technology program industry users participate in the peak-peak power-limiting technology program (1) Gap level IV-level participation program 1. Staged peak: when the peak-shifting instruction is implemented, priority is given to the participation of some cement mills. Wrong peak. Under the premise of completing the peak-to-peak indicator, combined with its own production process, it can selectively release part of the equipment load at different time periods.
2. After receiving the wrong peak command, the emergency peak should be quickly put into the limit load, and the air-conditioning lighting equipment should be arranged preferentially. If the cement mill is not able to meet the requirements, the cement mill will participate in the peak, and then gradually release the load according to the instructions to resume normal production.
(II) Gap level III participation scheme 1. Staged peak: Under the premise of ensuring safety, all cement mills and some raw mills participate in the peak during the peak period on the basis of the implementation of the IV scheme. . Under the premise of completing the peak-to-peak indicator, combined with its own production process, it can selectively release part of the equipment load at different time periods.
(3) Gap Level II Participation Plan 1. Staged peak: 1) On the premise of ensuring safety, based on the implementation of the Level III plan, all cement mills, raw mills and mines during the peak period The long-distance conveyor belt transmission system participates in the peak. Under the premise of completing the peak-to-peak indicator, combined with its own production process, it can selectively release part of the equipment load at different time periods.
2) For the long-distance transmission belt transmission system equipment with slow response time, it is necessary to participate in the peak preparation in advance to ensure that all load-limited loads can participate in the peak at full time.
2. Emergency peak 1) After receiving the peak error command, it is necessary to quickly input the limit load, and then gradually release the load according to the instruction to resume normal production. 2) On the basis of the implementation of the III-level plan, after receiving the wrong peak command, quickly put all the cement mills and raw material mills into operation, and if necessary, stop the main power equipment of the rotary rotary kiln, and enable the auxiliary transmission equipment to achieve the load-limiting purpose. Then gradually release the load according to the instructions to resume normal production.
(4) Gap Level I Participation Plan 1. Staged peak: 1) Considering the large power gap, the company can be arranged for maintenance throughout the plant, leaving only the power load required to repair the equipment. 2) In the peak period, firstly input the load-limited equipment such as the cement mill, the raw material mill and the main power equipment of the rotary rotary kiln with high limit load and fast response time; and gradually input the long-distance transmission of the mine with slow response time. With a conveyor system, all load-limited loads are guaranteed to participate in the peak.
2. Emergency peaks need to be quickly put into the limit load of the cement mill, raw mill and main power equipment of rotary rotary kiln after receiving the peak-level command, and then gradually release according to the instructions. The load resumes normal production.
Fourth, fourth, industry users participate in the peak power limit risks and precautions Industry users participate in the peak power limit risks and precautions 1. Stop the clinker and raw material grinding system risks and precautions must be prepared in advance, until all materials are exhausted After that, it can stop the machine. Otherwise, the hoist will not be able to start under heavy load, or the conveyor will be blocked by the powder, which will cause the system to transfer the powder normally after a long time. The preparation time usually takes 10 minutes.
2. The long-distance conveyor belt transmission system of the mine must be prepared in advance. After all the mineral materials on the conveyor belt have been exhausted, it can be shut down. Otherwise, the conveyor belt will not be able to be turned on again under heavy load. The preparation time is determined by the transmission distance, generally not less than 30 minutes. 3. The rotary rotary kiln cannot be stopped urgently, and the rotary kiln auxiliary transmission should be activated within 10 minutes after the main power equipment is stopped. Otherwise, because the length of the rotary rotary kiln reaches tens of meters, in the case of emergency stop, the kiln body will be deformed, the internal refractory bricks will loosen, and the clinker will harden and block the kiln body. It takes a long time (72 hours) to empty the material when it is full.
Therefore, the industry should not use forced power or remote control equipment to control power cuts. Enterprises should formulate effective internal emergency plans, actively cooperate with peak implementation, prevent malicious accidents, and take the initiative to take social responsibility and minimize losses.
V. Function and application of intelligent power monitoring V. Function and application of intelligent power monitoring Zhongping Pingxiang Cement Co., Ltd. is a large electricity consumer in Pingxiang City, Jiangxi Province. The annual production cost of the old production line is tens of millions of RMB, so users pay great attention to the team. Electricity assessment. The power management system designed by Ankerui for its old production line performed well, and the power management system of the new 4500t/d production line was still designed by Ankerui. 5.1 Project Overview
Sinoma Pingxiang Cement Co., Ltd. was established in 2008 with a registered capital of 38,861.775 million yuan. It is affiliated to China National Materials Group and specializes in the production and sales of cement. The company currently produces: 32.5 grade composite Portland cement and 42.5 grade Portland cement. The 4,500 t/d clinker production line project of Sinoma Pingxiang Cement Co., Ltd. is located in Lianbu Village, Futian Town, Shangli County, Pingxiang City. The final products are cement and clinker. The project started construction in May 2010 and is scheduled to be completed in September 2011. The static total investment of the project is 280 million yuan. The power supply of the 4500t/d new line of Sinoma Pingxiang Cement is led by the Futian Town Power Supply Bureau to the two-way 110kV power supply line to the new line total substation, and the 2# main transformer of 25000MVA and the 2# main transformer of 31500MVA are stepped down to 10kV and It is distributed to the distribution room of each production line such as kiln head, kiln tail, raw material mill, cement mill and limestone crushing. During the trial operation phase, the new production line was supplied by the old factory. Now the production line is put into operation, the power supply line is operating normally, the 1# main transformer has not been invested, and the 2# main becomes the production and supply of the entire new line. The wiring mode of the new production line 10kV power distribution system is three-phase four-wire, and there is a mother-link between the two incoming lines. A diagram of the total power distribution system is as follows:
The user will record the production electricity consumption every two hours, and perform the assessment according to three shifts in the morning, midnight and evening. The morning shift time is 8:00am~4:00pm, the middle shift is 4:00pm~12:00pm, and the night shift is 0:00am. ~8:00am. Compare the data of the total transformer substation with the data of the distribution room of the production line once a week, compare it with the power consumption data provided by the power supply bureau every month, and use this as the basis for assessing the energy consumption of each group. 5.3 System Structure The entire system is designed with a set of Acrel-3000 power management system, which adopts a layered and distributed structure, namely the field equipment layer, network management layer and monitoring management layer, as shown in Figure 1:
In this project, the electrical circuit of each circuit of the substation is realized by installing the ACR320E series multi-function power meter of Ankerui Electric Co., Ltd. on the total drop 10kV switchgear. In addition, Zhuhai Malata uses the same type of instrument panel meter panel in the central control room of the second floor of the total drop to measure the positive active and reactive power of the new line 110kV incoming line, 1#2# main transformer high side and low voltage side. Electricity. In addition, ACR320E series instruments are also installed on the 10kV switchgear of the production line distribution room at the raw material mill, cement mill, kiln head, kiln tail, limestone crushing, etc. The power management system only initially performs the back-end networking of the multi-function meters of the total power distribution room and the central control room, that is, the field equipment layer consists of all ACR320E series instruments in the total power distribution room and the central control room. The field instrument adopts shielded twisted pair RVVSP2*1.0 as the transmission medium of RS485 bus. The number of instrumentation devices attached to each 485 bus does not exceed 20, and the total length of the line does not exceed 100 meters, thus ensuring the stability of the data link. . In this project, 24 instruments are divided into 2 channels, that is, 19 instruments in the power distribution room and 5 instruments in the central control room communicate with the back-end system through a 485 bus.
Because the advanced system is small, the communication management equipment selects the 4-port serial port Jetport5604I produced by Korenix, which can simultaneously integrate 4 RS485 buses with optical isolation. The serial port server is installed in the network cabinet of the central control room, and is connected to the station management layer through the industrial Ethernet TCP/IP protocol. The Ethernet transmission medium is a super five types of STP shielded lines. Industrial network switches are reserved in this project for future system expansion. The main equipment of the station management layer is DELL's workstation, Santak 1KVA tower UPS power supply and HP's A4 format printer, operating system software Windows XP SP3, and power management system software for the Acrel-3000 series. All the equipments in this project use wired connection. The communication network construction is completed before the start of the new line production line. The system commissioning is completed during the trial operation. The power management system was put into operation at the same time in December 2011 with the production line.
5.4 System function data acquisition and management Data collection and management The data acquisition required for power distribution mainly through the ACR320E network multi-function instrument, PT, CT and other devices, will be the operating parameters of the field electrical equipment, including: current, voltage, active power, The remote sensing information such as reactive power, power factor, active power, and the state of the circuit breaker opening and closing are collected. The instrument is connected to the intelligent communication server through the 485 bus, and is connected to the power management host through the Ethernet interface. The ACR320E network multi-function meter adopts the RS485 interface and the MODBUS-RTU communication protocol, and the RS485 adopts the shielded cable twisted pair transmission, and the wiring is simple and convenient; The communication interface is half-duplex communication, and the maximum data transmission rate is 10Mbps. The RS-485 interface is a combination of balanced driver and differential receiver. The anti-noise capability is enhanced. Up to 32 devices can be connected on the bus. The maximum transmission distance is 1.2km.
Information processing information processing Statistics, analysis, and calculation of real-time data collected by the signal acquisition system, and the data is periodically stored. For the same period of electricity units, different power units in the same period of electricity consumption statistics; as a management platform for electricity costs, compared with the actual electricity costs; according to the amount of power generated by mobile oil, the fuel consumption is estimated. Clearly reflect the electricity consumption of all departments of the whole plant, establish a benchmarking department, and compare with the benchmarking department, find the steps of stealing electricity, leakage, long-lighting, and unused equipment power-off; evaluation of energy-saving effects of different energy-saving schemes It is beneficial to select energy-saving measures in a targeted manner, and can also be used as a measurement system for contract energy management projects; the energy report realizes the time-based inquiry of all energy data, which is divided into five types: minute, hour, day and month;
Power summary table, all monitoring equipment power summary, according to the time period query, automatically calculate the power consumption at any time; print and export, all reports and interfaces can be printed, or exported in EXCEL, WORD format; power report shown in Figure 2.
Because the advanced system is small, the communication management equipment selects the 4-port serial port Jetport5604I produced by Korenix, which can simultaneously integrate 4 RS485 buses with optical isolation. The serial port server is installed in the network cabinet of the central control room, and is connected to the station management layer through the industrial Ethernet TCP/IP protocol. The Ethernet transmission medium is a super five types of STP shielded lines. Industrial network switches are reserved in this project for future system expansion. The main equipment of the station management layer is DELL's workstation, Santak 1KVA tower UPS power supply and HP's A4 format printer, operating system software Windows XP SP3, and power management system software for the Acrel-3000 series. All the equipments in this project use wired connection. The communication network construction is completed before the start of the new line production line. The system commissioning is completed during the trial operation. The power management system was put into operation at the same time in December 2011 with the production line.
5.4 System function data acquisition and management Data collection and management The data acquisition required for power distribution mainly through the ACR320E network multi-function instrument, PT, CT and other devices, will be the operating parameters of the field electrical equipment, including: current, voltage, active power, The remote sensing information such as reactive power, power factor, active power, and the state of the circuit breaker opening and closing are collected. The instrument is connected to the intelligent communication server through the 485 bus, and is connected to the power management host through the Ethernet interface. The ACR320E network multi-function meter adopts the RS485 interface and the MODBUS-RTU communication protocol, and the RS485 adopts the shielded cable twisted pair transmission, and the wiring is simple and convenient; The communication interface is half-duplex communication, and the maximum data transmission rate is 10Mbps. The RS-485 interface is a combination of balanced driver and differential receiver. The anti-noise capability is enhanced. Up to 32 devices can be connected on the bus. The maximum transmission distance is 1.2km.
Information processing information processing Statistics, analysis, and calculation of real-time data collected by the signal acquisition system, and the data is periodically stored. For the same period of electricity units, different power units in the same period of electricity consumption statistics; as a management platform for electricity costs, compared with the actual electricity costs; according to the amount of power generated by mobile oil, the fuel consumption is estimated. Clearly reflect the electricity consumption of all departments of the whole plant, establish a benchmarking department, and compare with the benchmarking department, find the steps of stealing electricity, leakage, long-lighting, and unused equipment power-off; evaluation of energy-saving effects of different energy-saving schemes It is beneficial to select energy-saving measures in a targeted manner, and can also be used as a measurement system for contract energy management projects; the energy report realizes the time-based inquiry of all energy data, which is divided into five types: minute, hour, day and month;
Power summary table, all monitoring equipment power summary, according to the time period query, automatically calculate the power consumption at any time; print and export, all reports and interfaces can be printed, or exported in EXCEL, WORD format; power report shown in Figure 2.
The alarm and control alarm and control alarm prompting and notification module can sort the abnormal data collected by the daily monitoring system management module, and output sound and light, short message, work order, etc. through the hardware support for a certain range of data exceeding the benchmark power. The alarm and alarm query interface is shown in Figure 5. The alarm prompt box displays the time when the alarm occurred, the circuit name, the circuit usage, the data point, the data point description and the alarm content. (If it is an overload alarm, it will also display the current value of the alarm and Set alarm limit)
Sixth, the main monitoring products Six, the main monitoring products ((1 1) high-voltage circuit or low-voltage incoming circuit selection) high-voltage circuit or low-voltage incoming circuit selection ACR330ELHACR330ELH instrumentation This table is a power quality analysis instrument, the main functions are: LCD display, All-electric parameter measurement (U, I, P, Q, PF, F, S); four-quadrant energy metering, multi-rate energy statistics; THDu, THDi, 2-31 harmonic components; voltage crest factor, telephone Waveform factor, current K coefficient, voltage and current unbalance calculation; grid voltage current positive, negative, zero sequence component (including negative sequence current) measurement; 4DI+3DO (DO3 overvoltage, undervoltage, overcurrent, unbalance Alarm); RS485 communication interface, Modbus protocol or DL/T645 protocol. Dimensions: 120 × 120mm, opening size: 108 × 108mm. Suitable for high-voltage important circuit or low-voltage incoming line cabinet.
((2 2) Low-voltage contact or outlet circuit selection) Low-voltage contact or outlet circuit selection ACR220ELACR220EL Power meter power meter The main functions of this table are: LCD display, all-electric parameter measurement (U, I, P, Q, PF, F); Four-quadrant energy metering, multi-rate energy statistics, maximum demand statistics; 4DI+2DO; RS485 communication interface, Modbus protocol. Dimensions: 96 × 96mm, opening size: 88 × 88mm. Suitable for low-voltage commissure cabinets, outlet cabinets. ((3 3) Low-voltage outlet cabinet selection) Low-voltage outlet cabinet selection ARDARD series series This meter measures three-phase current, fixed value inquiry, fixed value setting, overload, phase failure (unbalance), stall, underload, external fault, Protection functions such as blocking and undervoltage, 8DI+4DO, power management, leakage protection, SOE recording, multiple start modes, RS485 communication interface, MODbus protocol/Profibus-DP protocol are optional. ((4 4) energy-saving product optional rail table or) energy-saving product optional rail table or APFAPF active filter device active filter device lighting box DDSF1352 main function of the meter: current specification 1.5 (6) A, 5 (20) A, 10(40)A, 20(80)A Optional, multi-rate energy statistics, energy pulse output, RS485 communication interface, Modbus protocol or DL/T 645 protocol optional. Dimensions: 76 × 89 × 74mm, 4 modules. Current and voltage measurement for lighting boxes; single-phase energy metering. ARDDTSF1352 main function of rail type electric meter: current specification 1.5 (6) A, 5 (20) A, 10 (40) A, 20 (80) A optional, multi-rate energy statistics, energy pulse output, RS485 communication interface, Modbus The protocol or DL/T 645 protocol is optional. Dimensions: 126 × 89 × 74mm, 7 modulus. Three-phase energy metering for lighting boxes.
Main functions of DTSD1352 rail type electric meter: LCD display, full electric parameter measurement (U, I, P, Q, PF, F, S); four quadrant energy metering, multi-rate energy statistics, maximum demand statistics; current specification 1.5 ( 6) A, 5 (20) A, 10 (40) A, 20 (80) A optional, RS485 communication interface, Modbus protocol or DL/T 645 protocol optional. Dimensions: 126 × 89 × 74mm, 7 modulus. Suitable for power cabinets. The ANAPF series of active power filter devices are connected to the grid in parallel. By detecting the harmonic and reactive components of the load in real time, PWM converter technology is used to generate a corresponding harmonic component and reactive component from the converter. The inverse component is injected into the power system in real time to achieve harmonic control and reactive power compensation.
Seven, equipment list
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