Zhejiang SHUYI Electric Co., LTD

Maintenance requirements in the day-to-day operation of the frequency converter 1. Check whether the cooling system is normal, and clean the dust of the air filter. 2. Check whether the screws, bolts and other fasteners of the inverter are loose, and perform necessary tightening; for the parts with soldering and crimping terminals, check whether there is corrosion, discoloration, cracks, damage, etc., and also check the frame Whether the structural parts are loose, whether the conductors and wires are damaged, etc. 3. Check whether the connection of the control circuit board is loose, whether the capacitor is leaking, whether the lines on the board are rusted, broken, etc. 4. Check whether the filter capacitor is leaking and whether the capacitance is reduced. 5. Check whether the insulation resistance is within the normal range. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #VFD #INVERTER #frequencyinverter #frequencyconverter #converter #inverters

How to measure the quality of soft starter 1. Visual observation. Through visual inspection, we can observe whether the soft starter has the following phenomena: The soft starter has strong damage, and the damage is usually caused by collision, fire, water, dust, load short circuit, etc. Treatment method: It can be sent back to the manufacturer for repair depending on the damage. 2. Smell. Whether the soft starter body has a burnt smell, the damage is usually caused by excessive current or excessive load. Treatment method: It can be sent back to the manufacturer for repair depending on the damage. 3. Listen. Check the soft starter for any abnormal noise, and stop immediately if there is any abnormal noise. Do not connect power factor compensation capacitors to the starter output. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters #softstartechnology #solidstatesoftstarter

MCCB is a plastic case type circuit breaker, referred to as: (MCCB), A circuit breaker: can be switched on, load and break the current under normal circuit conditions, can also be switched on under the specified abnormal circuit conditions, load a certain time and break the current of a mechanical switching appliance. Second, product selection and engineering design in civil architecture design of low voltage circuit breaker is mainly used for line overload, short circuit, over current, loss of pressure, under voltage, grounding, leakage, dual power automatic switch and not frequent starting of motor, operating purposes, the selection principles in addition to comply with the low voltage electrical equipment outside the use of environmental features and other basic principles of still should consider the following conditions: 1) The rated voltage of the circuit breaker shall not be less than the rated voltage of the line; 2) The rated current of the circuit breaker and the rated curren

Zhejiang Suyi Electrical Technology Co., Ltd. is a professional engaged in electrical automation, intelligent and other fields of product research and development, manufacturing, sales and service as one of the standard model of high-tech enterprises. The strength of the company is strong, with a large independent production and processing base, and actively introduce advanced production and processing equipment, condensing a strong technical force in the industry, excellent design ability of the R & D team. During the production of products, the company has a strict management system and perfect reliable detection means, fully ensure the company's production of soft starter, frequency converter, soft start control cabinet, product quality, and can provide every customer with safe and reliable solutions in the industry. The company's product sales business throughout the world more than 120 countries, won the favor and support of consumers from all walks of life, in the fac

AC contactor is one of the most commonly used low-voltage control appliances in power drag and automatic control systems. As an executive element, it is used to connect and disconnect lines, or to frequently control the operation of electric motors and other equipment. It is composed of moving and static main contacts, arc extinguishing cover, moving and static iron cores, auxiliary contacts and bracket shells. Model: AC contactor with a set of normally closed contacts with rated operating current 18A of CJX2. There's just no coil voltage. Be careful when using it. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #contactor #ACcontactor #ZJSHUYI #BypassContactor #frequencyinverter #inverters #vfds #Chinashuyi #shuyitop

Direct start is hard start. The starting current of hard start (direct start) is 3-7 times of the rated current of the motor. In the case of direct start (hard start), the situation of exceeding the rated current of the motor brings many restricted problems to the manufacturing process and structure of the motor itself. Because of this, people started brainstorming to solve this problem and invented soft start. Soft start, as the name suggests, is not to start directly, but to start slowly and little by little. For example, at the input end of the motor, the voltage is gradually increased from 0 to the rated voltage, and the frequency is gradually changed from 0 to the rated frequency, so that the starting current of the motor during the starting process is changed from the uncontrollable overload impulse current in the past. It becomes a controllable starting current that can be adjusted as needed. There is no impact torque in the whole process of starting the motor, but it starts and

installation requirements 1. The installation and wiring of the soft starter should follow the corresponding installation standards and safety regulations. 2. It is strictly forbidden to wire the soft starter when it is powered on. 3. It is strictly forbidden to use a megohmmeter to measure the insulation resistance of the soft starter. 4. When the soft starter is working normally, it will automatically output bypass. 5. The soft starter must be connected to the load during debugging, which can be smaller than the actual load. 6. Active input is prohibited from the remote terminal of the soft starter. 7. When wiring the soft starter, the three-phase input power must be wired according to the specified phase sequence. 8. The number of soft starter starts is recommended not to exceed 20 times per hour. 9. The soft starter should be installed vertically, and should not be installed upside down, obliquely or horizontally, and the base of the installation should be firm and flat. www.shuyit

1. Start curve - sets the time for voltage rise at start up Description: Ramp boost soft start. This STARTING MODE IS THE SIMPLEST AND DOES NOT HAVE current CLOSED-loop control. It only adjusts the thyristor conduction Angle to increase it as a function of time. 2. Stop curve -- set the speed of voltage decline at the stop time Note: When the motor is shut down, the traditional control mode is completed by instantaneous power outage. 3. Description of current limiting function: In this starting mode, the starting current increases gradually in the initial stage of motor starting, and keeps constant when the current reaches the preset value until the starting is complete. 4. Used to select the connection mode Note: The main circuit of the soft starter can be connected in different ways, that is, with the motor "external" or "internal", switch S1 in the corresponding position. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstart

What if there is no suitable soft starter, can a high-power soft starter bring a small motor? Generally, the specifications of low-voltage motor soft start are 5.5-600KW, which are mainly used for starting and running protection of different power motors. Power cabinets using soft starters do not need to add other motor protection products, and only need circuit breakers, soft starters, measuring instruments and related buttons in the cabinet. Because the soft starter has integrated current and voltage protection, such as overcurrent, overload, undervoltage and lack of equality. There is really no need to add other protectors. If the high-power soft starter is used to debug the cabinet, it is best to have a light bulb. . For example, 200KW with a small motor can be started very quickly, because the rated current of the small motor is small, and the high-power soft starter cannot detect the running current, it will report a phase loss fault. . If debugging, bring a light bulb and look a

Soft starter is a novel motor control device that integrates motor soft start, soft stop, light load energy saving and various protection functions. The main composition 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. When the motor reaches the rated number of revolutions, the starting process is over, and the soft starter automatically replaces the thyristor that has completed the task with a bypass contactor, providing rated voltage for the normal operation of the motor to reduce the heat loss of the thyristor and prolong the service life of the soft starter. , improve its work efficiency, and make the power grid avoid harmonic pollution. The soft starter a

20,000 square meters warehouse, plenty inventory and well managed. Inventory includes, Inverter , soft starter,micro switches, limit switches, travel switches, foot switches, toggle switches, solid state relays, For retailers, we accept small orders. We think this is really good for you For distributors, buy in bulk can get a better price. Save purchasing costs for you. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #inverter #forfrequencydrive #ACvfd #frequencyinverter #ZJSHUYI #SHUYITOP #softstarter

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

CJX is a small contactor, 2 is the design serial number. 3210 indicates that the rated working current of the main contact of the contactor is 32A, and 10 indicates a set of normally open auxiliary contacts. AC contactors often use three arc extinguishing methods: double-break electric arc extinguishing, longitudinal seam arc extinguishing and grid arc extinguishing. It is used to eliminate the arc generated by the moving and static contacts during the opening and closing process. Contactors with a capacity of more than 10A have arc extinguishing devices. The AC contactor also has auxiliary components such as reaction spring, buffer spring, contact pressure spring, transmission mechanism, base and terminal. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #contactor #ACcontactor #ZJSHUYI #BypassContactor #Chinashuyi #shuyitop

The motor can adjust the speed according to the frequency set by us, so that the purpose of stepless speed regulation can be achieved in a very wide frequency range. There are several ways of frequency conversion speed regulation. The main method of frequency conversion speed regulation is that we set a frequency command for the frequency converter. The most commonly used setting of this frequency command can generally be given through the operation panel of the frequency converter. Frequency command, pulse signal given, 0 to 10V voltage analog signal given or 0 to 24 mA analog current signal given, communication mode given and contact signal given, etc. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #VFD #frequencyconverter #acdrive #frequencyinverter #inverter #frequencydrive #acvfdvariablefrequencydrive #vfddriveprice #shuyitop #converter #inverters #vfds #vfdmarket #ZJSHUYI #Chinashuyi

The #softstarter has the advantages of small size, adjustable torque, stable start, small impact and soft stop function. #Softstarter has gradually replaced the traditional step-down starting method of asynchronous motor. So what should you pay attention to when choosing a low-voltage soft starter? 1. Selection of overload protection device Thermal overload relay with overload protection, phase break protection and temperature compensation function shall be selected for the overload protection device of soft start device. Specific selection, to make the working current of the motor within the range of setting current of the thermal element. The rated current value of the motor should be close to the lower limit of the setting current range of the thermal element for equipment that is prone to overload when working. 2. Electrical wiring and component arrangement of low-voltage soft starter cabinet Electrical wiring of low-voltage soft starter cabinet is shown in Figure 2. The electr

First of all, the purpose of the soft starter and the frequency converter is different. The main problem solved by the soft starter is to reduce the starting current of the large load and reduce the impact on the power grid. The startup of large equipment will generate a very large startup current, which will cause a large voltage drop. If the traditional star-delta and other step-down methods are used, it will not only cause a larger current impact to the power grid, but also cause a larger load to the load. Mechanical shock, in this case, a soft starter is often used to start, to achieve no shock throughout the start, so that the motor starts more smoothly, thereby reducing the capacity of the power supply. The frequency converter is mainly used in places with speed regulation. It can control the speed of the three-phase motor, such as the speed regulation of the spindle motor of CNC machine tools, the transmission control of mechanical conveyor belts, large fans, and heavy-duty mach

The AC contactor has the following functions: First, use a small current to control the on-off of a large current, so that the start and stop of the dragging device can be realized with a small current. Second, the contactor itself does not have the function of protecting the circuit, but it can be used with thermal relays and time relays to realize overheating protection shutdown of the equipment and time control of the equipment. Third, the AC contactor is composed of moving and static main contacts, arc extinguishing cover, moving and static iron cores, auxiliary contacts and bracket shells. The main contact is used to control the circuit, and the auxiliary contact is used to conduct the control circuit. Web: www.shuyitop.com; Tel/Fax: 0086-577-62840011 Wechat/WhatsApp: 008613355775769 Zhejiang SHUYI Electric Co., LTD, Focus on switches with 30 years. An original factory of micro switch; foot switch; toggle switch; limit switch from China. #ZJSHUYI #Chinashuyi #shuyitop #ACconta

(1) Start the slope Starting the slope is the time when the slope is soft to start the slope (initial voltage) to reach the full voltage. (2) Tortoic slope The stop slope is from the full voltage to the stop voltage (initial voltage). (3) Initial voltage This is the starting point of the soft -starting animal start or stop the slope. (4) current limit amplitude The current limitation can be used for applications that require limited start -current current, (5) Anti -voltage voltage Anti -voltage voltage provides a special type of stop slope. Time! (6) adjustable rated motor The adjustable rated motor current can set the rated current on the soft -lifter used by the motor. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters #softstartechnology #softstartermarket #softstarterprice #ac powersoftstarterwithbuilt-inbypass #threephaseforacmotor #builtinbypassseriesratedacsoftstarter #builtinbypasssoftstarter #singlephase

1. Selection of overload protection device Thermal overload relay with overload protection, phase break protection and temperature compensation function shall be selected for the overload protection device of soft start device. Specific selection, to make the working current of the motor within the range of setting current of the thermal element. The rated current value of the motor should be close to the lower limit of the setting current range of the thermal element for equipment that is prone to overload when working. 2. Electrical wiring and component arrangement of low-voltage soft starter cabinet Electrical wiring of low-voltage soft starter cabinet is shown in Figure 2. The electrical components in the cabinet are arranged in the order shown in the diagram, so that the main wiring is short and not crossed, which is convenient for copper bar connection. The soft starter is installed on the right side of the contactor and is not affected by the heating of other components. The d