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The product integrates the independent research and development achievements of sensing technology, network technology and electrical technology into intelligence, miniaturization and modularization product. Compared with traditional low-voltage reactive power compensation products, it has automatic cyclic switching, three-phase compensation, phase-splitting compensation, hybrid compensation, grading optimization compensation, hybrid grading optimization compensation. And it also has protection function of overcurrent, overvoltage, undervoltage, undercurrent,voltage loss and phase loss, harmonics, temperature. And at the time it has measurement, control , communication and other functions.
The product breaks through the existing low-voltage reactive power compensation equipment in structure, and realizes a new mode of decentralized control and centralized management. The compensation series has the characteristics of few components, low temperature rise, small size, low power consumption, no harmonic generation; brief structure, easy standardization, flexible configuration of capacity, safety, reliability, economy, and convenient use.
The product can predict the input capacitor, improve the active power of distribution transformer, reduce investment in capacity expansion, and reduce the loss of compensation system. The real-time switching of decentralized control increases the stability of the compensation system, and the zero-crossing control reduces the impact of inrush current on the system voltage, reduces equipment loss and increases the service life of capacitors for stabilizing the system power grid, and is of great significance to energy conservation and environmental protection.
The product integrates the independent research and development achievements of sensing technology, network technology and electrical technology into intelligence, miniaturization and modularization product. Compared with traditional low-voltage reactive power compensation products, it has automatic cyclic switching, three-phase compensation, phase-splitting compensation, hybrid compensation, grading optimization compensation, hybrid grading optimization compensation. And it also has protection function of overcurrent, overvoltage, undervoltage, undercurrent,voltage loss and phase loss, harmonics, temperature. And at the time it has measurement, control , communication and other functions.
The product breaks through the existing low-voltage reactive power compensation equipment in structure, and realizes a new mode of decentralized control and centralized management. The compensation series has the characteristics of few components, low temperature rise, small size, low power consumption, no harmonic generation; brief structure, easy standardization, flexible configuration of capacity, safety, reliability, economy, and convenient use.
The product can predict the input capacitor, improve the active power of distribution transformer, reduce investment in capacity expansion, and reduce the loss of compensation system. The real-time switching of decentralized control increases the stability of the compensation system, and the zero-crossing control reduces the impact of inrush current on the system voltage, reduces equipment loss and increases the service life of capacitors for stabilizing the system power grid, and is of great significance to energy conservation and environmental protection.
Environment | Ambient temperature | -25℃~+45℃ |
Relative humidity | 20~90% at 40℃ | |
Altitude | ≤2000m | |
Power | Rated voltage | 380V |
Voltage deviation | ±20% | |
Voltage waveform | the total harmonic distortion rate of voltage is not more than 10% | |
Working frequency | 48.5Hz~51.5Hz | |
Power consumption | <0.5W (with capacitor removed) <1W (when two capacitors are put in) | |
Measurement error
| Current | ≤1% (in the range of 5%-120% rated current); ≤0.5% (within the range of 20%-120% rated current) |
Temperature | ±1℃. | |
Protection error | Current | ≤1.0% |
Temperature | ±1°C (capacitor) | |
Time | ±0.01s | |
Reactive power compensation parameters
| Capacitor switching interval | >10s |
Reactive power capacity of a single unit | three-phase≤40kvar; split-phase≤l0kvar. | |
Reliability parameter | Control accuracy | 100% |
Switching allowed times | > 1 million times | |
Attenuation rate of capacitor capacity running time | ≤1%/year | |
Capacitor capacity switching attenuation rate | ≤0.1%/10,000 times |
Environment | Ambient temperature | -25℃~+45℃ |
Relative humidity | 20~90% at 40℃ | |
Altitude | ≤2000m | |
Power | Rated voltage | 380V |
Voltage deviation | ±20% | |
Voltage waveform | the total harmonic distortion rate of voltage is not more than 10% | |
Working frequency | 48.5Hz~51.5Hz | |
Power consumption | <0.5W (with capacitor removed) <1W (when two capacitors are put in) | |
Measurement error
| Current | ≤1% (in the range of 5%-120% rated current); ≤0.5% (within the range of 20%-120% rated current) |
Temperature | ±1℃. | |
Protection error | Current | ≤1.0% |
Temperature | ±1°C (capacitor) | |
Time | ±0.01s | |
Reactive power compensation parameters
| Capacitor switching interval | >10s |
Reactive power capacity of a single unit | three-phase≤40kvar; split-phase≤l0kvar. | |
Reliability parameter | Control accuracy | 100% |
Switching allowed times | > 1 million times | |
Attenuation rate of capacitor capacity running time | ≤1%/year | |
Capacitor capacity switching attenuation rate | ≤0.1%/10,000 times |
CMC-MX soft starter is suitable for starting and protecting general squirrel-cage AC asynchronous motors. Adapted motor power from 7.5kW to 280kW. It can smoothly start/stop the motor without steps, avoid mechanical and electrical shocks caused by traditional methods such as direct start, star/delta start, auto-coupling step-down start, etc.
XiChi XPQ Active Filters are used for Harmonic Reduction in Haier IOT Center. The active power harmonic filter (APF/AHF) suppresses the harmonic current on the load side to a great extent, and the overall harmonic filtering effect is obvious.
In the process of starting the motor, the soft starter gradually changes the conduction angle of the thyristor, so that the starting current of the motor rises smoothly from zero to the maximum value. The whole process runs smoothly, the reliability of the motor power supply is high, the impact torque on the mechanical load is reduced, the impact on the motor itself is small, and the service life of the motor and the entire equipment is prolonged.
The harmonic control technology of active filter equipment is one of the effective means to improve the quality of power supply. After the popularization and application of APF in the power supply system of hospital buildings, the generated harmonics can be controlled within the minimum range. Realize scientific and rational use of electricity, restrain grid pollution, improve power quality, ensure the safety of medical equipment, and bring huge economic and social benefits to users.
Project requirementsHigh voltage soft start device10KV 280kw * 8 units400kw * 6 unitsHigh voltage SVG1 unit
The use of high-voltage motor soft-start device can effectively improve the service life of the pump and the reliability of power supply. CMV series of products are widely used in electric power, building materials, chemical industry, metallurgy steel, paper making and other industries with rated voltage of 3000-10000V. It can be used well with various electromechanical equipment such as water pump, fan, compressor, pulverizer, mixer, belt conveyor, etc. It is an ideal high-voltage motor starting and protection equipment.
The VFD has achieved remarkable power-saving effect when used in the drive control of fans and pumps. It is an ideal speed control method. It not only improves the equipment efficiency, but also meets the production process requirements, and greatly reduces the equipment maintenance and repair costs, and also reduces the shutdown period.
Using VFD for speed regulation, it is convenient to realize multi-stage speed regulation of mining winches, and improve system stability and safety. It reduces operation failures and downtime, saves manpower and material resources, improves coal transportation capacity, and also has considerable indirect economic benefits.
APF is a new type of power electronic device for dynamically suppressing harmonics and compensating reactive power. It can quickly track and compensate harmonics of different sizes and frequencies. Compared with the passive filter device, the active filter device has better treatment effect, and it can mainly filter out multiple and high-order harmonics at the same time without causing resonance.
CFV9000A series high-voltage variable frequency speed regulation system, with high-speed DSP as the control core, adopts space voltage vector control technology and cell-series multi-level technology, with high reliability, easy operation and high performance as the design goals, to meet the needs of users for various load adjustments.
APF can not only compensate various harmonics, but also suppress flicker and compensate reactive power; the filtering characteristics are not affected by system impedance, etc., which can eliminate the risk of resonance with system impedance; it has an adaptive function, which can automatically track and compensate for changing Harmonics, that is, have the characteristics of high controllability and fast response.
XFC500 variable frequency drive is used in amusement ride to realize functions such as speed regulation, energy saving, and protection of mechanical equipment. With small size, light weight, large torque, high precision, strong function, high reliability, simple operation, easy communication and other functions.
The soft starter integrates motor soft start, soft stop and multi-function protection. In the heating industry, soft starters can be used in various applications of squirrel-cage asynchronous motors that do not require speed regulation, especially suitable for various pump loads or fan loads that require soft start and soft stop.
Application of CMV HV soft starter in piston pump in petrochemical industry.
Project Overview:The 1850 water pump house of Yaojie Coal and Electricity Group used oil circuit breaker to control high-voltage electricity, and reactor was used for starting, with large starting current and little protection function.
OverviewProduct model: CMV-800-10Load type: Crushing machinePhoto
Project infoLoad type: induced draft fanRated voltage: 10KVMotor rated current: 54ANumber of motor poles: 6 polesHigh voltage soft start model: CMV-900-10On-site parameter setting:Starting voltage: 65%Current limit multiple: 4 timesStartup time: 20Project infoLoad type: induced draft fanRated voltag
Frequency inverter applied to glass tempering furnace advantages: Low frequency and stable operation during standby, saving energy; The starting current is small, the impact on the power grid and machinery is small, and the service life of the equipment is prolonged; Quick start, shorten the production process and improve production efficiency; Control the frequency required for fast response, and control to meet the production process requirements.
The application of frequency inverters to plastic extruders has the advantages of reducing production energy consumption, improving productivity and product quality, and reducing the impact on the power grid during startup. The main extruder is composed of extrusion system, transmission system and heating and cooling system. The transmission part usually consists of a motor, a reduction box and a bearing.