What is the bypass operation of the 3RW series soft starter? How to choose a bypass contactor?

Create Date: 2024-8-30 12:03:23|Source: Siemens/Siemens

After the 3RW series soft starter is started, there are two main operation methods: continuous operation and bypass operation. At this time, the thyristor is in a fully conductive state, and the system enters a constant speed operation state. Here, we advocate that the user should choose the bypass method for operation, that is, when the full voltage is reached after the start-up is completed, the main circuit is switched to the bypass contactor connected in parallel with the thyristor. This has two benefits:
What is the bypass operation of the 3RW series soft starter? How to choose a bypass contactor?

1. Reduce the operation time of thyristors and improve the service life of thyristors, thereby reducing the cost of protection.

2. Reduce the heat loss of thyristor conduction, which is conducive to the heat dissipation of the equipment and can effectively reduce the power consumption of the equipment.

For the 3RW30/31, 3RW40 and 3RW44 series soft starters, the equipment now has a built-in bypass contactor, so the customer does not need to choose an external bypass contactor separately, thus reducing the purchase cost and simplifying the design.

More on that
Siemens S7-200 SMART communication protocols and resources Siemens S7-200 SMART communication protocols and resources

Each S7-200 SMART CPU provides an Ethernet port and an RS485 port (port 0), and the standard CPU additionally supports the SB CM01 signal board (port 1), which can be configured as an RS232 communication port or R...

Siemens acquires Supplyframe Siemens acquires Supplyframe

Siemens recently signed a buy-in agreement to acquire Supplyframe, a leading platform for planning-to-acquisition information in the global electronics value chain, for $700 million. The sale will bring tremendous value to Supplyframe and Siemens' customers, helping them to achieve a seamless, fast and seamless process.

HBIS and Siemens have established a comprehensive strategic partnership HBIS and Siemens have established a comprehensive strategic partnership

The iron and steel industry is the backbone of national modernization and an important industry to support the development of the national economy. Without steel, there would be no high-rise buildings, railways and highways in all directions. The importance of this cannot be overstated.   In recent years, the steel industry has seen overcapacity and ...

Siemens helped CIMC ENRIC win the hydrogen energy track Siemens helped CIMC ENRIC win the hydrogen energy track

ENRIC is a leading manufacturer of clean power equipment under World Marine Containers (Group) Co., Ltd. in China, and has accumulated full tacit understanding and trust with Siemens in projects such as LNG system integration project and Hebei Xiong'an oil, gas and hydrogen integrated power service station. ...

Do the Siemens 3RW series soft starters have a communication function? How the communication function is implemented Do the Siemens 3RW series soft starters have a communication function? How the communication function is implemented

For the 3RW series soft starters (current models 3RW30/31, 3RW40, 3RW44, discontinued models 3RW34, 3RW22), the high-performance 3RW44 and 3RW22 have their own communication functions. The high-performance 3RW44 soft starter is equipped with a local device RS ...

Siemens presents the new Sinamics G220 high-performance inverter Siemens presents the new Sinamics G220 high-performance inverter

On the eve of the Hannover Messe 2023, Siemens launched a new product in the Sinamics series, the Sinamics G220 high-performance frequency inverter. This innovative inverter product uses clean converter technology to reduce harmonics by up to 97% without the need for incoming filters or incoming reactors.   ...

Siemens builds a super digital factory for small pots of tea Siemens builds a super digital factory for small pots of tea

In June 2022, with the help of Siemens, the super factory built by Xiaocan Tea with an investment of 1.5 billion yuan in Huangshan, Anhui Province was officially put into operation, providing a modern demonstration model for Chinese tea enterprises and leading the arrival of the "Tea Industry 4.0" era. As the first tea profession in China to start with "...

Siemens launches an open digital business platform Siemens launches an open digital business platform

Siemens Xcelerator enables companies of all sizes in industry, buildings, power grids, and transportation to accelerate digital transformation and value creation. With this business channel, digital transformation will be easier, faster, and easier to scale. Siemens Xcelerator integrates the best ...

The Siemens soft starter 3RW44 can self-reset and can fail The Siemens soft starter 3RW44 can self-reset and can fail

Not all faults can achieve self-reset, and the faults that can achieve self-reset are as follows, (the method of self-reset is to set the corresponding parameters in the menu of the LCD display): 1) The motor thermal model is overloaded. The way to achieve self-reset is to select "Settings" -> "Response..." -> "Thermal ...

Siemens S7-1200 PLC process functions Siemens S7-1200 PLC process functions

1. S7-1200 CPU motion control S7-1200 Body Motion Control Axis Resources: In open-loop control mode, the maximum number of pulse axes is 4 and cannot be expanded. In closed-loop control mode: S7-1200 with firmware version V4.1 and above can be used in ...

The new factory of Siemens CNC (Nanjing) Co., Ltd. (SNC) was officially put into operation The new factory of Siemens CNC (Nanjing) Co., Ltd. (SNC) was officially put into operation

The new factory of Siemens CNC (Nanjing) Co., Ltd. (SNC) was officially put into operation. As the world's first native digital factory of Siemens, SNC's new factory fully demonstrates the real value of Siemens' advanced digital corporate philosophy and skills. Even before it was built in the field, Siemens was using it in all directions...

Siemens' measures to deal with F7453 after the occurrence of F7453 Siemens' measures to deal with F7453 after the occurrence of F7453

1. Causes of F7453 When using the EPOS function, an azimuth ring encoder will be set, and if the numerical feedback of the azimuth ring encoder presents a problem, it will report an F7453 problem, which represents an error in the processing of the azimuth practice value. When the F7453 is generated, it is generally related to the hardware of the encoder ...

Features of the Siemens S7-1200 memory card Features of the Siemens S7-1200 memory card

The memory card used by the S7-1200 CPU is an SD card, which can store user project files and has the following three functions: As a mount store for the CPU, user project files can be stored only on the card, without project files in the CPU, they cannot run without the memory card. ...

Frequently asked questions about Siemens ET200S configuration programming Frequently asked questions about Siemens ET200S configuration programming

1. Q: How many serial modules can the ET200S slave take? Answer: There is no constraint on the number of ET200 serial port modules, which depends on the number of modules that can be carried by the ET200S site and the constraints of IO addresses. 2. Q: What is the meaning of 4/8/32 byets in ET200S hardware configuration options?

Siemens is investing 600 million euros in an industrial and technological center in Berlin Siemens is investing 600 million euros in an industrial and technological center in Berlin

Sept. 16 (Reuters) -- Siemens returned to its headquarters in Berlin on Wednesday to announce plans to invest 600 million euros ($681 million) in an industrial and technological center in Germany's capital. This investment will contribute to the creation of a new Siemensstadt in the Berlin area, the predecessor of Siemens ...

Siemens brought innovative fire protection products to the 19th China International Fire Protection Exhibition Siemens brought innovative fire protection products to the 19th China International Fire Protection Exhibition

With the theme of "Perfect Space, Safety First", Siemens participated in the 19th China World Fire Equipment Skills Exchange Expo (China World Fire Protection Exhibition), showing a full range of fire explorers, emergency dispersion and lighting systems, intact subsystem solutions, and wine ...

Siemens joins hands with Hisense to explore the home appliance industry Siemens joins hands with Hisense to explore the home appliance industry

Siemens recently signed a strategic cooperation agreement with Hisense Group Holding Co., Ltd. (Hisense). The two sides will be based on Siemens' preemptive digital business portfolio, as well as the successful practice of digital transformation, to promote Hisense's digital construction together, and explore the development of intelligent production in the home appliance industry.

Siemens SINAMICS GM150 for in-depth maintenance Siemens SINAMICS GM150 for in-depth maintenance

On-site maintenance Pre-charge circuits, rectifier units, diode characteristics, inverter units, GSV, AVT are inspected and cleaned. Diagnostic testing of rectifier modules, as well as functional testing of high-voltage switchgear interfaces. GM150 IGBT POWERCARD Static Testing, Cleaning, Inspection IG...

Siemens and New Hope work together to create new opportunities Siemens and New Hope work together to create new opportunities

At present, digital technology is empowering the transformation and upgrading of traditional agriculture, animal husbandry and food industries. The use of innovative technologies such as artificial intelligence, big data analysis and cloud accounting has brought the modernization and intelligence of industry to a further step.   As a well-known enterprise in China, New Expectation Group Co., Ltd. ( ...

The 3RA6 SIRIUS Compact Starter operates in conditions from 2000m to 5000m above sea level The 3RA6 SIRIUS Compact Starter operates in conditions from 2000m to 5000m above sea level

When the 3RA6 SIRIUS Compact Starter is operating at altitudes above 2000 m above sea level, the following parameters will be degraded: Rated Current (Ie), Rated Insulation Voltage (Ui) and Rated Operating Short-Circuit Breaking Capacity (ICS) ...

CATEGORIES BYPASS
Customer Service Center

Online Consultation:QQ


ContactContact

Contact: Manager Huang

Contact QQ: 3271883383

Contact number: 13522565663


Scan the code to add WeChat (please save the picture first on the mobile phone)

working hoursworking hours

Weekdays: 9:00-17:00

Holidays: Only emergencies are handled

Contact us

Contact us

Contact number QQ consultation
QQ consultation

3271883383

Company address
Back to top