Model Of The Soft Starter
Rated motor power
Please refer to
Meet the standards
Three phase power supply
AC 380V(optional 220V and 660V)
Squirrel cage three-phase asynchronous motor
When the motor is fully loaded, no more than 4 times per hour, no load or light load, no more than 10 times per hour.
At an altitude of 3000 below ground gas, the vibration stresses below 0.5G
93% no condensation or drop
Natural cold wind
Relative to vertical
Vertical installation, angle range
External dimensions of 90kw-400kw
Please see the below table for the external and installation dimensions of WSTR3000 series 90kw-400kwsoft starter.
Rated power (KW)
Connection Diagram For Main Circuit Of WSTR 3000 Soft Starter
Terminal Configuration Diagrams
Terminal diagram of the main circuit
|1) WSTR3005-3075||WSTR 3090-3400|
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.
WSTRD series Motor Starter has a Chinese & English LCD display to real-time display current, voltage and other operating status. The help information can be assessed when the soft starter is not in the soft start/ soft stop status or the setting status; press Yes(button for confirmation), then press the up/down buttons to read the prompt messages.
Four-digit voltmeter, used to test the voltage of the three phase AC power
Indicate the specification of the soft starter
Indicate that the latest fault information is zero
Indicates no occurred fault information
Indicates the occurred fault information Err0r06
indicates no fault information
Indicates the software version of the product is Ver4. 2
The total times of successful starting
Time used in last soft start(whether succeed or not)
Note: HI-H9 saves the recent 9 fault information in the recursive method
Through the inbuilt RS485 standard interface, WSTR 3000 series soft starter can connect with PC and PLC and other hosts to conduct serial communication. The command of the host can control running or stop of the soft starter, monitor the running status of the soft starter and modify its functional data.
1.Input of stop running command.
2.Monitoring of the running status
3.Real-time tracking (tabular display of the running information)
4.Read-once, write-once and saving to files of function codes. Please consult our company separately for the communication software.
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.
● 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.
● We have 3 senior engineers in our R&D dept, we design and produce all kinds of voltage transformers regulators, stabilizers rector on the basis of our customers’ specific requirements.
● There is no perfect individual, only perfect team!Our company often organizes activities to enhance the cohesion and teamwork spirit of the company and further promote the corporate culture
● We have customers from all of the world, and we hold exhibitions in different country.
● The company's products have a wide range of applications.Including printing machinery, packaging machinery, winding machinery, film blowing machine, lathe, grinder, etc.Therefore, it is deeply loved by customers.
Q: Why choose us ?
A: 1. Famous brand in china for 10 more years ---- Winston
2. Easy operating system ---- Easy but effective software, gentle touch achieves
3. Stable performance ---- best famous compenents ensure the quality all the time
4. Excellent aftersales service ---- 24*7 hours online serive, never leave you alone.
5. Fast delivery ---- cheap & safe delivery, we look after it all the time
Q: Do you have any foreign agents?
A: Yes, at present we have agents in Indonesia and Malaysia, developing more agents is part of our next plan.
Q: How about the price of the product?
A: We are the manufacturer and we have a fairly advantaged competitive price.
Q: I can’t find the product on your catalogue, can you make this product for me?
A: Our catalogue shows most of our products,but not all.So just let us know what product do you need, and how many do you want.If we do not have it,we can also design and make a new mould to produce it.For your reference,making a ordinary mold will take about 35-45 days.