Zhejiang SHUYI Electric Co., LTD

In the field of motor control systems, bypass soft starters and online soft starters are two highly efficient and widely applied technologies. Although they differ in certain aspects, these two types of starters exhibit significant similarities in many key characteristics. Similarity One: Smooth Starting Whether it’s a bypass soft starter or an online soft starter, one of their main functions is to achieve smooth motor starting. By controlling the starting current, both types of starters can effectively reduce the current impact at startup, thus protecting the motor and connected mechanical equipment. Similarity Two: Energy-Saving Features Energy saving is another common advantage of bypass soft starters and online soft starters. They optimize the starting process and reduce unnecessary energy consumption, helping businesses reduce operating costs and improve energy efficiency. Similarity Three: Extended Equipment Life Using bypass soft starters and online soft starters can reduce mech...

Dual power switch is the switch that automatically switches to another power supply for a reason. General double power switch is widely used in high-rise buildings, residential areas, hospitals, airports, docks, fire protection, metallurgy, chemical industry, textile and other important places that do not allow power outage Web: www.shuyitop.com; Tel/Fax: 0086-577-62840011 Wechat/WhatsApp: 008613355775769 Zhejiang SHUYI Electric Co., LTD, Focus on switches with 30 years. #Dualpowerswitch #SYQ1-100GA/4P #zhshuyi #shuyitop

Now the long used in transmission engineering is three-phase asynchronous motor. In many cases, these motors cannot be directly connected to the power system due to their starting characteristics. If started directly on line, a surge current of 6 times the rated current of the motor will be generated, which can overload the supply system and the series switchgear. If it is started directly, it will also produce a higher peak torque. This impact will not only impact the driving motor, but also make the mechanical device under load. For example, auxiliary power transmission components. To reduce the starting current, start auxiliary devices, such as starting reactors or autotransformers, should be used. However, this method can only gradually reduce the voltage, while the soft starter can realize non-impact starting by smoothly increasing the voltage of the gao terminal. Can better protect the power system and motor. Web:www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355...

Soft starter function (1) The startup mode and parameters can be modified on site to meet various startup requirements. (2) Not affected by temperature, stable startup performance, high restart precision. (3) IT has small size, long service life and convenient installation and maintenance. Web:www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters

First energize the soft start and then press the start button. When the number displayed on the screen reaches 100 percent, the motor starts to complete. When you want to stop the motor, press the stop button, the motor will stop running. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters

1. Press the "Program" key to enter the parameter group, and press the "△ ▽" key to switch the parameter group. 2. To modify the parameter, press the first step to enter the corresponding parameter, press the "program" key to enter the parameter, press the "△▽" key to modify the parameter value, after the modification is completed, press the "confirm" key to save the parameter, and press the "confirm" key again to return Go to the main interface. 3. Press the "Run" key to start the soft starter. 4. Press the "Stop" button to stop. 5. In the standby state, press the "ruturn" button to view the fault record. 6. Long press the "△" key to clear the fault record. 7. Long press "▽" to restore factory settings. Web:www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstart

Inverter, this product uses intelligent detection circuit and automatic control system, so that the operation is more stable, reliable and safe; In the occurrence of overvoltage, overcurrent, short circuit and other faults, it will automatically detect the related components in the circuit, and make it send an alarm signal, in order to avoid greater trouble in the operation of the frequency converter, and provide more security for users; This product also has high reliable braking function (braking resistance is not less than 200KΩ), so that customers use safe and reliable; In addition, this product also has overvoltage protection (over the pressure set value automatically cut off the output), short circuit protection and other functions. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #Frequencyconverter#VFD#INVERTER

During the starting process of the soft starter motor, the conduction angle of the thyristor gradually increases, the output voltage of the thyristor also gradually increases, and the motor accelerates from zero until the thyristor is fully turned on and the start is completed, thereby realizing the stepless smooth start of the motor. The maximum starting torque and starting current of the soft starter motor can be set according to the load. The main composition of the soft starter is a three-phase parallel thyristor and its electronic control circuit connected in series between the power supply and the controlled motor. Different methods can be used to control the conduction angle of the three-phase parallel thyristor, so that the input voltage of the controlled motor changes according to different requirements, and different functions can be realized. Soft starters and frequency converters are two completely different products. The frequency converter is used where speed regulation i...

1. The function of relay base is as follows: (1) Current relay: acting to reflect the increase of current, it acts as the starting element and measuring element of current protection. (2) Voltage relay: reflects the voltage change (too low or too low) and the action. (3) Time relay: as a time element, it is used to establish the necessary action delay. (4) Intermediate relay: its function is to increase the number of contacts in order to control different circuits; Increase the contact capacity to disconnect or switch on the circuit with high current; Provide the necessary delay to meet the requirements of protection and automatic devices. (5) Signal relay: in the protection and automatic device as an action indicator. Web: www.shuyitop.com; Tel/Fax: 0086-577-62840011 Wechat/WhatsApp: 008613355775769 #ZJSHUYI #Chinashuyi #shuyitop #breakers #MCB #MCCB #Baserelay

Fire control cabinet (automatic control cabinet) is a kind of industrial control equipment that is more common in our lives, such as corridors, underground parking lots, gas stations and other public places. However, many friends do not know what it is called or what it is used for. The following ZJSHUI editor will explain what is a fire control cabinet. The fire control cabinet is a safe fire fighting tool provided by the pump factory. Its main purpose is to protect the pump motor from overvoltage, short circuit and overload. And also has a sound and light alarm function. It plays an important role in extinguishing fire and is also a fire safety device that can help control the fire after a fire occurs. There are many ways to start the control cabinet, including direct start, soft start, star-delta start, auto-coupling start, etc. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters #ZJSHUYI #Softstartcabinet

The phenomenon of inverter overcurrent (1) When restarting, it trips as soon as the speed increases, which is a very serious phenomenon of overcurrent. The main reasons are: the load is short-circuited, the mechanical parts are stuck; the inverter module is damaged; the torque of the motor is too small, etc. (2) It jumps when it is powered on. This phenomenon generally cannot be reset. The main reasons are: the module is broken, the drive circuit is broken, and the current detection circuit is broken. (3) When restarting, it does not trip immediately but during acceleration. The main reasons are: the acceleration time setting is too short, the current upper limit setting is too small, and the torque compensation (V/F) setting is high. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #VFD #INVERTER #frequencyinverter #frequencyconverter

Zhejiang Shuyi Electric Co., Ltd., the original soft starter; frequency converter is a professional manufacturer and exporter of electrical and electronic products in China. Specializing in research and development, production and sales. Main products: soft starters; frequency converters; automatic transfer switches; AC contactors; switches; relays. Most of the products have passed CCC, CE, VDE, UL, CQC certification. Our website :www.shuyitop.com. will always update the latest industry information and product information, you can pay attention to it when you are free. Thanks in advance ! www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #frequencyconverters#automatictransferswitches #ACcontactors #switches #relays#chinashuyi #shuyitop #MCCB

The AC contactor uses the main contact to open and close the circuit, and uses the auxiliary contact to execute the control command, so as to complete the power switch and control circuit. Normally, the main contact generally has only normally open contacts, and the auxiliary contact often has two pairs of normally open and normally closed functions of the contact. Next, it is described in detail through its composition, classification, basic parameters, selection parameters, operation and maintenance. It is mainly composed of four parts :(1) electromagnetic system (2) contact system (3) arc extinguishing device (4) insulation shell and accessories The selection parameters of AC contactor include: rated voltage; Rated current; Rated voltage of the coil; Frequency of operation; Working current of auxiliary contacts. Here is also an introduction to the points of attention in the selection of rated current: continuous operation of contactor, according to the selection of 67-75%, for exam...

The AC contactor uses the main contact to open and close the circuit, and uses the auxiliary contact to execute the control command, so as to complete the power switch and control circuit. Normally, the main contact generally has only normally open contacts, and the auxiliary contact often has two pairs of normally open and normally closed functions of the contact. Next, it is described in detail through its composition, classification, basic parameters, selection parameters, operation and maintenance. It is mainly composed of four parts :(1) electromagnetic system (2) contact system (3) arc extinguishing device (4) insulation shell and accessories The selection parameters of AC contactor include: rated voltage; Rated current; Rated voltage of the coil; Frequency of operation; Working current of auxiliary contacts. Here is also an introduction to the points of attention in the selection of rated current: continuous operation of contactor, according to the selection of 67-75%, for exam...

1. It is required to reduce the starting current of the motor. 2. In normal operation, the motor does not need to have the function of speed regulation, only to solve the working state of the starting process. 3. The load is not allowed to reduce voltage and speed during normal operation. 4. If the motor power is larger than 100kw, it will cause bad influence to the operation of the main voltage transformer when starting. 5. The operation of the motor has strict requirements on the grid voltage, and the voltage drop is no more than 10%U. 6. No starting impact is allowed when the equipment starts. 7. The starting torque of the equipment is not large, and it can be started with no load or light load. 8. Medium and large motors need energy-saving starting. From the initial investment, it is more economical to use autocoupling step-down starting for motors with power below 75KW, while it is more economical to use soft starter for motors with power between 90-250kw. www.shuyitop.com; Tel/F...

A relay is a component that is often used as a switch in a circuit. According to the type of control voltage required by its coil, it can be divided into AC relays and DC relays. The specifications of the relay are expressed by the coil control voltage and the contact current. Usually, when the load current is less than 10A, the contact of the relay can be used to directly connect or cut off the circuit. When the load current is too large, it can be used as an indirect control part. Relays are generally composed of iron cores, coils, armatures, contact springs, etc. As long as a certain voltage is applied to both ends of the coil, a certain current will flow through the coil, and an electromagnetic effect will be generated. contacts (normally open contacts) attract. After the coil is powered off, the electromagnetic attraction also disappears, and the weighing iron returns to its original position under the reaction force of the spring, releasing the moving contact and the original sta...

The role of the intermediate relay So why distinguish between intermediate relays and AC contactors? AC contactors mainly play the role of controlling the power supply in the circuit and are used in the main circuit of the main circuit, while the intermediate relays mainly exist in the control circuit, which controls the circuit, Convert and expand the role of contacts. When the auxiliary contacts of the AC contactor are not enough, the contacts of the intermediate relay can be used instead. However, the contact capacity of the intermediate relay is relatively small, generally around 5A. It is possible for circuit feedback or control, but It cannot directly drive high-power loads. What is the difference between AC and DC? Having said so much, what is the difference? First of all, we need to understand that AC means AC voltage level, commonly used are 220VAC, 380VAC. DC means DC voltage level, commonly used are 12VDC, 24VDC, if you want to get DC voltage requires the use of a switching ...

Generally, the soft start specification of low-voltage motor is 5.5-600KW, which is mainly used for the start and operation protection of different power motors. The power cabinet with soft starter can not add other motor protection products, only the circuit breaker, soft start, measuring instrument and related buttons in the cabinet can be. Because the soft starter has integrated current and voltage protection, such as overcurrent, overload, undervoltage and lack of equal. There is no need to add additional protectors. If the high power soft starter debugging cabinet is best with a light bulb. For example, 200KW with a small motor can start, very fast, because the rated current of the small motor is small, high-power soft starter can not detect the running current, it will report the lack of phase fault. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #softstarterprice #softstartcabinet #ZJSHUYI #Chinashuyi

Main voltage range, main current range, control voltage, soft start time, soft stop time, initial voltage. Motor soft start is to achieve smooth start of motor and mechanical load by adopting technical means such as voltage reduction, compensation or frequency conversion, reducing the impact of starting current on the power grid, and protecting the power grid and mechanical system. Make the output torque of the motor meet the requirements of the mechanical system for the starting torque, ensure smooth acceleration, smooth transition, and avoid destructive torque impact; make the starting current meet the requirements of the motor's bearing capacity, and avoid the insulation damage or burning caused by the motor's starting heat; make the starting current Meet the requirements of relevant standards for power quality of the power grid, reduce the voltage sag amplitude, and reduce the content of high-order harmonics. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355...

Inverter and servo drive are the most widely used driving equipment in the transmission system. When talking about the difference between the two, many people only know that inverter is often used in low-end mechanical equipment, while servo drive is mostly used in high-end mechanical equipment. This is a relatively general statement. Frequency converter is a power control device that uses the on-off function of power semiconductor devices to convert power frequency power into another frequency. It can realize the functions of soft start, frequency conversion, speed regulation, improving operation accuracy and changing power factors of AC asynchronous motor. Frequency converter can drive frequency conversion motor, common AC motor, mainly acts as the role of adjusting the motor speed. Frequency converter is usually composed of rectifier unit, intermediate circuit, inverter and controller. Servo system is an automatic control system that enables the object's position, orientation, s...