PS 640UX series protection, measurement, & control device

PS640UX series protection, measurement, & control device is integrated protection,measurement, and control device developed by Guodian Nanjing Automation Co. Ltd. It is applicable to substations and power plants of non-directly grounded system or small

resistance grounded system at 110kV and lower voltage levels.PS640UX can be used to protect and control the user substation, and is be widely used to Power Industry, Water conservancy industry, Traffic Industry, Oil industry, Chemical industry,Coal Industry, Metallurgical Industry and so on.

Q1. Relay does not trip?

A:Put the correspongding protection in the setting table to check whether the blocking conditions are met.

Q2. No communication with the RS485 port on the back of the device?

A: Change the polarity wiring, reset the communication parameters or protocol.

Q3. Voltage display is abnormal?

A: Set the fixed value according to the actual voltage connection mode

Q4. Power transmission circuit breaker tripping?

A: Put in the second harmonic blocking function

Q5. Can you offer Modbus protocol/register map?

A: Yes, we have and welcome contact us.

Q6. What about the lead time and shipment?

A: The lead time depends on the quantities ordered, normally within 7-20 days after receiving the payment. 

For shipping, we often use DHL, FedEx, UPS, and TNT. 

Q7. What's the warranty time?

A: 12 months from shipping date.

Q8: What is your payment terms?

A: We accept pay via Bank Transfer, Paypal, Western Union and Trade Assurance.

Q9: Can I customized LOGO?

A: Please inform us formally before our production and confirm the design firstly based on our sample. We have professional R&D

team to support best service, and give you best suggestions.

Q10: Why choose us?

A: We serve our customers with our expertise,enthusiasm and customer-oriented attitude.

We always put employees and customers at first and try to improve the lives of the people we employ and exceed customers'expectation. Mutual benefit and shared growth is what we want to achieve.