Heping soft starter was awarded as a well-known trademark in China, and Suoken Heping (Shanghai) Electric used the word soft starter for the first time in China.
Especially HPMV series, high-voltage solid-state soft starter is especially famous, and hapn is a well-known trademark in China. It has been successfully applied to the Three Gorges Xiluodu Hydropower Station, Beijing Olympic Games Project, Shanghai World Expo, Guangzhou Baiyun Airport, Liugang Group, Anniversary Oil, Shanghai Metro and other national large-scale projects.
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What is the difference between a soft starter and a frequency converter?
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Soft starter and frequency converter are two completely different products. Frequency converter is used where speed regulation is needed, and its output not only changes the voltage but also changes the frequency; The soft starter is actually a voltage regulator. When the motor is started, the output only changes the voltage, not the frequency. Inverter has all the functions of soft starter, but its price is much more expensive and its structure is much more complicated.
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Energy-saving principle of soft starter;
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Motor is an inductive load, and the current lags behind the voltage. Most electrical appliances fall into this category. In order to improve the power factor, it must be compensated by capacitive load, capacitor or synchronous motor. Reducing the excitation current of the motor can also improve the power factor (HPS2 can save energy, reduce the voltage under light load, reduce the excitation current and increase COS∮). Energy-saving operation mode: reduce the voltage under light load and reduce the excitation current, and the motor current is divided into active component and reactive component (excitation component) to increase COS∮.
Energy-saving operation mode: when the motor load is light, when the energy-saving function is selected, the soft starter will turn the PF switch to the Y position, and under the action of current feedback, the soft starter will automatically reduce the motor voltage. The excitation component of the motor current decreases. So as to improve the power factor (COS∮) of the motor. (Most domestic soft starters don't have this function) This function can't be realized when the contactor is bypassed. TPF switch provides double reaction time energy-saving function; Normal, slow. Energy-saving operation mode: automatic energy-saving operation. (Normal and slow reaction speed) No-load energy saving 40%, load energy saving 5%.
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The model of soft starter is introduced in detail:
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HPS2D conventional soft starter: HPS2D75…840 motor soft starter, which is a fully digital controlled soft starter. Perfect control function, with a variety of protection functions. At the provincial new product appraisal meeting, it was rated as a domestic leading international product. Using 16-bit single chip microcomputer, the data processing is fully digital. The voltage ramp at start and stop is controlled by single chip microcomputer. It has the functions of pulse conflict jump, high current disconnection, pump stop, built-in electronic overload protection (optional), phase failure protection, over-current protection, over-temperature protection and so on, and has the functions of self-diagnosis and energy saving. It can eliminate the current impact in the process of starting and stopping the motor, reduce the power grid capacity, avoid the mechanical impact when the motor is started, and protect the motor and load. It is the best substitute for traditional star triangle and autotransformer buck starter, and can be widely used in textile, metallurgy, petrochemical, water treatment, food and health care products processing, mining and machinery industries.
The HPMV-DN medium and high voltage soft starter consists of several thyristors in series and parallel, which can meet the requirements of different current and voltage levels. The output voltage can be controlled by controlling the trigger angle of the thyristor. In the process of motor start-up, HPMV-DN increases the terminal voltage of the motor according to the preset start-up curve, which makes the motor accelerate smoothly, thus reducing the electrical and mechanical impact on the power grid, the motor itself and the connected equipment when the motor is started. When the motor reaches normal speed, the bypass contactor is connected. After the motor is started, the HPMV-DN soft starter continues to monitor the motor and provide various fault protection. During the soft stop, the terminal voltage of the motor decreases steadily according to the preset stop curve until the motor stops. Soft stop can solve the water hammer phenomenon of water pump and the mechanical impact caused by sudden stop.
The economical soft starter HPS2S18/30 … 300/515 is a flexible and diverse motor soft starter. It can replace Y/△ starting and is suitable for most applications. Convenient installation and adjustment, all control connections and parameter adjustment are completed on the front. There are clear working conditions and fault indications on the front panel. After installation, the soft starter can still be easily modified by users, such as adding current limiting function and selecting internal and external conversion. The soft starter can run continuously online without bypass. The soft starter has a separate bypass and fault control relay. All parameters of the soft starter are set by three knob potentiometers and a code pull switch on the front panel, which is intuitive and accurate. It can even work in vibration and high ambient temperature applications. When the soft starter is used for internal wiring, the thyristor module bears the phase current of triangular wiring, so the soft starter with the same current can load a motor 1.73 times larger than the external wiring. For example, a 58A S-type soft starter is internally connected with a motor that can load 100A.
Characteristics of HPS2S 18/30 ... 300/55
Simple installation and convenient adjustment.
Flexible choice, free choice of internal/external connection mode;
The product performance is stable and reliable;
With LED indication, power supply, working state and fault analysis can be seen at a glance.
In conventional load applications such as pumps, compressors, elevators, lifts, short-distance conveyor belts and bow propellers, the HPS2S soft starter can be selected according to the rated power of the motor.
For load applications, such as centrifuges, mixers, crushers, mixers and long-distance conveyor belts, it is recommended that you choose a soft starter with a size not greater than the rated power of the motor.
parameter
Main voltage range: 220～690 vac
Live current range: 18~300A external connection; 300~5 15A internal connection.
Control voltage:110 ~120 vac or 220~240VAC.
Soft start time: 0~30s
Soft stop time: 0~30s
Initial voltage: 30 ~ 70% UE；; 1.5~4Ie
Bypass mode: External operation can be done without bypass.
On the basis of adhering to the excellent start-stop characteristics of other types of soft starters of Heping Electric, HPS2DB intelligent and economical soft starter adopts the form of dual MCU, and the main chip adopts a new microprocessor to complete functions such as communication, fault handling, signal acquisition and parameter setting. The trigger control of SCR is completed from the chip, and the factory parameters are preset, which is suitable for most loads. The current parameters can be easily restored to the factory values through the keyboard. Built-in nonvolatile memory ensures that parameters will not be lost. Comprehensive protection function. Support communication function-can communicate with soft starter through field bus, and can support communication protocols such as Modbus, Profibus and DeviceNet. Optional analog output function, soft starter control program can be upgraded online.
Model description
The rated flow of (1) starter is 18, 30, 37, 44, 50, 60, 72, 85, 105, 142, 175, 2/kloc.
(2) Scope of application of main voltage level
50/60Hz 230VAC 220~240VAC
400 volts AC voltage 380 ~ 420 volts AC voltage
500 volts AC 480 ~ 520 volts AC
660 ~ 690 volts AC voltage
(3) the scope of application of control voltage level
50/60Hz 1 15 vac 1 10 ~ 120 vac
230 volts AC voltage 220 ~ 240 volts AC voltage
(4) Optional code description
Modbus
B field bus
Equipment network
D RS232C option
E analog output options
Note: If the last three items of HPS2DBXXX are not filled in, the default values are: main voltage 400VAC, control voltage 230VAC, and there is no option.
Selection guide
Maximum rated power of motor (KW) The rated current of motor is the specification, model and weight of soft starter.
230V 400V 500V 690V A main voltage control voltage type Kg
4 7.5 1 1 15 18 HPS 2 db 18-x-x-x 4.5
7.5 15 18.5 25 30 HPS2DB 30-x-x-x 4.5
9 18.5 22 30 37 HPS 2db 37-x-x-x 4.5
1 1 22 25 37 44 HPS2DB 44-x-x-x 4.5
12.5 25 30 45 50 HPS2DB 50-x-x-x 4.5
15 30 37 55 60 HPS 2db 60-x-x-x 4.5
18 . 5 37 45 59 72 HPS 2 db 72-x-x-x 4.5
22 45 55 75 85 HPS2DB 85 - x - x - x 5.5
30 55 75 90 105 HPS2DB 105-x-x-x 5.5
37 75 90 132 142 HPS 2 db 142-x-x-x 5.5
45 90 1 10 160 175 HPS 2 db 175-x-x-x 22.7
55 1 10 132 200 2 10 HPS 2db 2 10-x-x-x 22.7
75 132 160 220 250 HPS2DB 250-x-x-x 22.7
90 160 200 257 300 HPS2DB 300-x-x-x 22.7
1 10 200 250 355 370 HPS2DB 370-x-x-x 24.8
132 250 3 15 450 470 HPS2DB 470-x-x-x 24.8
performance parameter
The main voltage range is 230 v ~ 690 vac 50/60 Hz.
Main current range 18~470A.
Control power supply110v ~127vac 50/60hz or 220~240VAC 50/60HZ.
The startup time is 0~30s.
Stop time 1~30s
UE with initial voltage of 30 ~ 50%
Current limiting multiple 1.5~4Ie
Frequently start 4 times/hour under the maximum starting current.
Protection functions include phase loss, overvoltage, undervoltage, overcurrent, undercurrent and overheating.
Analog output 1~5V DC or 4 ~ 20mDC.
Communication function1~ 5vdc or 4 ~ 20mdc.
Analog output: Modbus, Profibus, DeviceNet, etc.
The display languages are Chinese and English, which can be extended to other languages.
Main features:
● LCD menu display, optional in Chinese and English, which can be extended to other languages;
Small size, compact structure and convenient installation;
● Smooth start-stop control and comprehensive protection function;
● Support communication function, and multiple communication protocols are available;
● It has the function of monitoring and protecting the working state of the bypass.
HPS2DN 15…840 digital intelligent soft starter is a voltage regulating and current limiting intelligent motor soft starter developed on the basis of original HPS2S and HPS2D/DH. Its unique intelligent electronic circuit provides perfect control and protection functions: linear acceleration start-up, pump start-up and pump stop control, preset low-speed operation (low-speed short-time electric control forward and reverse debugging), preset double. Motor insulation detection and protection functions, as well as lack of phase, short circuit, phase sequence and electronic overload protection. It can take RS 485 communication interface and adopt Modbus /Profibus protocol to realize microcomputer comprehensive remote control and monitoring. Can be widely used in textile, metallurgy, petrochemical, water treatment, shipping, transportation, medicine, food processing, mining and machinery and equipment industries. The new generation of HPS2DN is a very convenient "building block" IT component in the application of modern industrial informatization and automation technology.
HPS2S economic soft start actuator: According to its power, it can be divided into four types on DIN35 35mm guide rail. This small soft starter has built-in bypass contacts. Hps2s18/30 ... 300/515 is used for general startup, and there are two connection modes (equivalent to standard Y/D starter). Using "internal connection" can reduce the current flowing through the soft starter by 42%. In other words, the user can start and run the motor of 100A with the soft starter of 58A. The current limiting function can be provided as an option, and the standard configuration is two built-in signal relays. The power of this soft starter is 1. 15, which means its maximum current is equal to the rated current lex 1. 15.