rectifier
Many converters use diodes, which convert the power frequency power supply to DC power. It is also possible to form a reversible converter with two sets of transistor converters, because the purpose of the power target is reversible and can be regenerated for operation.
Flat wave back
The rectified DC voltage of the rectifier contains the pulsating voltage of the power supply at 6 times the frequency, and the pulsating current generated by the inverter also changes the DC voltage. In order to fluctuate the voltage, inductors and capacitors are selected to accept the pulsating voltage (current). When the installation capacity is small, if the power supply and main power formation equipment are insufficient, the inductor can be omitted and a simple flat wave return can be selected.
inverter
Contrary to the rectifier, the inverter converts the DC power into the communication power of the required frequency, and the 6 switching devices can be turned on and off at a determined time to obtain 3 communication outputs. Take a voltage-type PWM inverter as an example to show the switching time and voltage waveform.
The control electricity is the return of the main power supply to the asynchronous motor (voltage and frequency can be adjusted), which has the frequency and voltage of the "operation electricity", the main power of the "voltage and current detection electricity", the "speed detection electricity" of the motor, the "driving electricity" that amplifies the control signal of the operation electricity, and the "electricity" of the inverter and the motor.
(1) Computing electricity: The external speed, torque and other instructions are compared with the current and voltage signals of the detected electricity to determine the output voltage and frequency of the inverter.
(2) Voltage and current detection electricity: It is blocked from the main return potential to detect voltage and current.
(3) Driving electricity: the electricity that drives the main electrical equipment. It is isolated from the control resistor to make the main electrical equipment on and off.
(4) Speed detection electricity: The signal of the speed detector (TG, PLG, etc.) installed on the shaft of the asynchronous motor is the speed signal, which is sent back to the operation, and the motor can be operated according to the command speed according to the instruction and calculation.
(5) Electricity: detect the voltage and current of the main electricity, and prevent damage to the inverter and asynchronous motor when overload or overvoltage occurs.
|
More on that
|
Precautions for the use of Schneider AC contactors
There are many series of contactors: LC1-SK series: below 6ALC1-K series: 6A-16ALC1-D series: 9A-150ALC1-F series: 115A-800ALC1-B series: 750A-1800A
When installing, it should be in accordance with the regulations...
|
|
The difference between Schneider PLC and Siemens PLC
There are three main differences, namely: different applications, different products, and different characteristics.
1. The application situation is different: the programmable manipulator produced by Siemens in Germany is also widely used in China.
|
|
Servo motor selection process – Schneider
1. Load organization (acknowledging the type of tissue and its specific data, such as ball screw length, ball screw diameter, stroke, pulley diameter, etc.)
2. Form of action (acknowledging the form of action of manipulating the target, the relationship between time and speed; Will manipulate ...
|
|
Features of Schneider explosion-proof inverter boxes
1. Aluminum alloy shell or steel plate welding, plastic spraying on the surface;
2. Built-in inverters, circuit breakers, signal lights and other components produced by domestic or Schneider and other companies;
3. It mainly regulates the general three-phase difference by changing its output frequency.
|
|
Instrumentation mechanical equipment system - Schneider
1. Power system:
The wire and cable products selected in the power system mainly include overhead bare wires, busbars (busbars), power cables (plastic cables, oil-paper power cables (fundamentally replaced by plastic power cables), rubber cables, overhead insulated cables), branch cables (replacing part of the busbars), ...
|
|
Electrical Control Line Fault Analysis Method - Schneider
1) Survey and research method. The investigation and research method is to "see", "listen", "smell", "touch" and "ask" to understand the significant faulty phenomena; After visiting the operator, understand the cause of the problem; A common way to help find faults after consulting others or consulting information ...
|
|
Schneider instrumentation winter insulation measures
The methods adopted usually are: selection, thermal insulation and heat tracing, protection (point inspection, sewage discharge) and so on.
Selection method
Choose the appearance of the type with insulation equipment. According to the category and use of the appearance and the geographical location of the proposed equipment, the insulation and antifreeze requirements of the appearance are proposed, and then submitted to the manufacturer for processing. ...
|
|
Automatic control instrument construction content and procedures - Schneider
1. Construction preparation. Including the preparation of operating conditions (construction skills documents and detailed planning documents), construction organization planning, equipment list, data budget, and list of machined parts;
2. Cooperate with civil engineering majors to do a good job of embedding, ...
|
|
How to choose the right inverter for the motor?
The inverter is an electric transmission element that is used in frequency conversion skills and microelectronics skills to control and communicate with the motor by changing the frequency and fluctuation of the power supply of the motor.
The birth of the inverter cabinet originated from the communication motor ...
|
|
Schneider inverter simple question
1. How to complete the control of ATV38 and ATV58 through the operation panel?
First, in the control menu, set "LCC" to "YES" (panel operation); Enter the "LFR" parameter in the adjustment menu, press the up and down keys to adjust the given value, and complete the control of the inverter.
...
|
|
Schneider's new Modicon programmable controller PLC series
Schneider Electric, the global energy efficiency management specialist, has launched the new Modicon Programmable Manipulator (PLC) M221 series, M241 series and M251 series under the MachineStruxure machine automation channel. This series of new products is tailored for industrial OEM shopping malls, relying on Schneider Electric global ...
|
|
The energy-saving effect of using frequency converter for fan and pump loads
Why is the use of inverter for fan and pump loads to save energy?
According to the basic laws of fluid mechanics, it can be seen that the fan pump load is a typical square rotation load, and its main characteristics are: speed n and torque T and load ...
|
|
Precautions for Schneider to use USP power supplies
(1) When using Schneider UPS power supply, the relevant provisions of the manufacturer's product manual should be strictly adhered to ensure that the front and zero line sequences of the mains connected by Schneider UPS meet the requirements.
(2) The main intention of equipping Schneider UPS is to prevent the computer from losing information due to a sudden power failure...
|
|
"Five Ways" to Solve Life Sciences Industry Challenges – Schneider
In life sciences careers, equipment performance is critical to ensuring business continuity and useful production time. The main challenges faced by the industry include: maintaining the positive impact of environmental parameters on product quality, managing multiple systems in a "siloed" state, and using existing infrastructure sensitively and efficiently.
|
|
The difference between the highest frequency and the basic frequency of the inverter - Schneider
1. There are two ways to say the fundamental frequency:
(1) The frequency corresponding to the maximum output voltage of the inverter is called the fundamental frequency;
(2) When the output voltage of the inverter is equal to the additional voltage, the minimum output frequency is called the fundamental frequency. The fundamental frequency is expressed in fBA.
...
|
|
A brief description of the working principle of Schneider power soft starter
Schneider ATS48 soft starter is composed of three opposite parallel thyristors, which are connected in series between the three-phase power supply and the motor, by changing the trigger angle of the thyristor gate pulse, the conduction angle of the thyristor gradually increases from zero, according to the pre-set soft starter parameter curve, the motor output torque ...
|
|
Schneider miniature circuit breaker C type D type difference
The difference between Schneider OSMC32N3D10 and OSMC32N3C10
After type comparison, one is Schneider D10A and the other is Schneider C10A.
Schneider circuit breaker type D, suitable for power equipment, such as motor load, air conditioner, etc.;
Schneider circuit breaker type C, suitable ...
|
|
How can industry be high-quality and sustainable? - Schneider
Sanya, China, October 21, 2021 – In the context of the ever-changing global development situation and the increasingly urgent response to carbon neutrality, Ruan is moving towards carbon neutrality together with cost reduction and efficiency increase, which has become the focus of attention of many industrial enterprises. As a global digital transformation specialist in power management and automation...
|
|
Rebecca · Lowell · Edwards Schneider Electric's first Global Head of Communications
GENEVA – Rebecca Lowell Edwards, who has been with the International Olympic Committee for the past 18 months·· has joined Schneider Electric as the company's first global communications chief.
In the new work that starts today, love ...
|
|
Schneider inverter series at a glance
1. ATV11 series
The Schneider ATV11 series is primarily used in three-phase asynchronous motor inverters with a power range of 0.18 to 2.2 kW.
2. ATV12 series
ATV12 Schneider inverter for power scale 0.18k...
|
|
Contact
working hours
