Distributed control system REC670

¥45,698.00

External connections:
• Excitation current to the load cells
• 2 or 4 analog inputs for load cell signals
• 4 analog outputs, voltage or current
• 8 digital inputs for control signals
• 8 digital outputs
• +24 V supply for external units, max 0.5 A
• Ethernet connection
• Service and multiple control units
• 2 serial interfaces of type RS-232 for
external displays, control, etc.

Model:REC670

Category: SKU: ABB REC670 Tag:
Whatsapp：+86 15359293870
WeChat：+86 18106937731
                E-mail：geabbdcs@gmail.com
Contacts：kelly CHEN

Description

Distributed control system REC670

Distributed control system REC670

The numerical, low-impedance differential protection function is designed for fast and selective protection for faults within protected zone.

All connected CT inputs are provided with a restraint feature. The minimum pick-up value for the differential current is set to give a suitable sensitivity for all internal faults.

The pick-up setting for the fault current must be less than 80% of the lowest fault current that can occur on the protected bus bars. If the minimum fault current is high enough, the set value should be set higher than the maximum load current.. This setting is made directly in primary amperes.

The operating slope for the differential operating characteristic is fixed to 53% in the algorithm.

The fast tripping time (shortest trip time is 5ms) of the lowimpedance differential protection function is especially advantageous for power system networks with high fault levels or where fast fault clearance is required for power system stability.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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2. We will ship the product to you on the same day or within 1-2 working days after receiving your payment. The shipping time depends on the country/region where you reside, the customs and habits of your country/region, and especially during peak hours.
3. Assuming (assuming) that the item requires payment of tariffs from your country, the buyer is obligated. We are not responsible for any taxes or customs fees in your country/region.

 

Return Policy:
1. Please contact us before returning the item.
2. The buyer should inform the seller of all returned items within 7 days after receiving the package. We reserve the right to reject any request to inform the seller for more than 7 days.
3. Returned products must have all original packaging and be in good condition.

 

Response policy:
If you are satisfied with the purchase, please leave us an active response.
2. If you have any questions about the outcome of the transaction or product, please contact us first and we will do our best to satisfy you!
3. Please do not reply with negative feedback before contacting us!

 

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