Softstarters

Model Of The Soft Starter

Data-sheet

Basic Functions

External Dimensions

External dimensions of 5.5kw-75kw

Please see the below table for the external and installation dimensions of WS1R3000 series 5.5kw-75kw soft starter.

Connection Diagram For Main Circuit Of WSTR 3000 Soft Starter

Terminal Configuration Diagrams

Terminal diagram of the main circuit

2)Terminal diagram of the control circuit

3)Terminal connection of the control circuit

Why Choose Us

Yueqing Winston Electric CO.,LTD has made further technical improvement in both the software and the structure of the soft starter according to the market demand. The soft starter provides complete motor protection functions including start control, running and overloading, phase failure, three-phase unbalance, over-voltage, under-voltage protection and so on. As another great achievement in the intelligentization of motor protection and networked technology application, it simplifies the circuit, reduces the volume, cuts the coat, makes installation and using more convenient.

Installation direction and space: to enable good ventilation and heat dissipating conditions during using of the soft star ter, the soft starter should be installed vertically with enough space for heat dissipating left around the equipment. The allowable minimum spaces are shown in figure 2.1 and figure2.2. 

In the event that the soft starter is installed inside the cabinet, besides the above requirements, the cabinet selected should be with good ventilation at the top and bottom, as shown in figure 2.3. 

WSTR 3000 series soft starter possesses complete protection functions to protect the operation security of the soft starter and the motor. Here is Motor thermal protection tripping time curve based on IEC60947-4-2 standard is shown as follows:

Description Of Protection Functions

WSTR 3000 series soft starter possesses complete protection functions to protect the operation security of the soft starter and the motor. During operation, the protection level and protection parameters should be properly set base don different circumstances. 

● Over-heating protection of the soft starter: the protection will start when the temperature rises to 80℃±5℃, and it will stop when the temperature falls to 55℃(lowest). 

● Delayed time of input phase loss protection: <3s. 

● Delayed time of output phase loss protection: <3s.

● Delayed time of input three-phase unbalance protection: <3s. Taking the deviation of current in each phase is over 50%10% as the criteria, when the load current is less than 30% of the nominal rated value of the soft starter, it is confirmed that the deviation will increase. 

● Protection time of over-current during starting: the protection time shall be continued to be longer than 5 times of the maximum operating current of code F5, 

● Delayed time for power under-voltage protection: when the power voltage is under the extreme value 40%, the protection time< 0.5s, when the power voltage is below the set value, the protection time< 3s. 

● Delayed time for power over voltage protection: when the power voltage is over the extreme value 130%, the protection time< 0.5s, when the power voltage is over the set value, the protection time< 3s. 

● Delayed time for load short circuit protection < 0.1 s, if the current is more than IO times of the nominal rated value of the soft starter, this protection shall not replace the fuse or short circuit protection device. 

The above time parameters are the periods from the valid signal being detected to the tripping protection directive being given; these parameters are for information only. In the event that the protection functions of the soft starter fails to meet the requirements of customers, special protection devices should be installed to ensure the safety.

Kick Mode

a)The soft starter will be under kick starting mode when code F9 is set to 2(kick+ current limiting) or 3(kick + voltage). Figure 12-3-1 and 12-3-2 show the output change wave of the kick starting mode. In some occasions with heavy load, this starting mode can be used when the motor fails to be started due to effect of the mechanical static friction force. During start, apply a relatively high fixed voltage to the motor for a limited period to overcome the static friction force of the motor load to rotate the motor, then the motor will be started in the current limiting or fixed voltage ramp method.

b)Before using this mode, the motor shall be started through the non-kick mode, and this mode shall be only used when the motor fails to rotate due to high friction, otherwise, starting with this mode shall not be used to reduce the unnecessary shock caused by large current.

Current Ramp Starting Mode

a)The motor will be under current starting mode when code F9 is set to 4(current ramp). Figure 12-4-1 shows the output current wave of the current ramp starting mode, I 1 is the time value set by code F 1.

b)The current ramp starting mode possesses strong accelerating capacity, when used in bipolar motor, it can shorten the starting time to a certain extent.

Voltage And Current Limiting Double Closed-Loop Starting

a) The motor will be under double closed-loop starting mode when code F9 is set to S(double closed loop). The voltage and current limiting closed-loop starting mode which adopts the double closed-loop control of voltage ramp and current limiting is a comprehensive starting mode requires both smooth starting and strict current limiting. It employs the prediction algorithm which estimates the operation status of the motor 

b)Output voltage wave of this starting mode varies with the motors and loadings. 

About Us

● Yueqing Winston is a known brand, a leading manufacturer and exporter for off-grid which has been this industry for 10 years. Our factory was established in 2010. We provide power solution service to our clients. All of our customers are located all over the world and they are very satisfied due to our excellent price-quality ratio.

● With special cultivation of employees, high investment on production facilities and R&D as well as a wide range of products, we advocate "technology innovation, business honesty and trust and quality first" as our basic principle, trying to develop into a world-class electrical manufacturer with constant efforts. 

● The company has a rigorous experimental team to develop and produce the latest and most practical products

● According to the product external weight, the company has independent and suitable packaging for products.

● Winston company uses modern office software to combine work and computer technology.It break the traditional office space design, improve the efficiency and optimize the service.

FAQ

Q: How to order our product ? 

A:1). Please tell us the model and quantity and other request you need. 

2). We make the PI for you.

3). After you confirm the PI, we arrange the order for you after receiving your payment.

4). After the goods finished, we send the goods out to you and tell you the tracking number.

5). We will track your goods until you receive the goods. 

Q: Where is your main market for your products?

A: Most of our products are exported to Europe, Africa and Mid East.

Q: Can I see the sample first before I place the real order ? 

A: Yes, of course.

Q: Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery. What’s more , all our goods will have a 12 hours aging test before leaving the factory.