RET670 ABB PLC
RET670 is a dedicated two-winding power transformer management relay perfectly aligned for the protection, control, measurement and supervision of both power and step-up transformers, including power generator-transformer blocks, in utility and
industrial power distribution systems. RET620 is a member of ABB’s Relion® protection and control product family and its 620 series. The 620 series relays are characterized by their functional scalability and withdrawable-unit design.The 620 series has been designed to unleash the full potential of the IEC 61850 standard for communication and interoperability of substation automation devices. The 620 series relays support a range of communication protocols including IEC 61850 with Edition 2 support, process bus according to IEC 61850-9-2 LE, IEC 60870-5-103, Modbus® and DNP3. Profibus DPV1 communication protocol is supported by using the protocol converter SPA-ZC 302.
RET670 ABB PLC
RET670 ABB PLC
Five stages for high-voltage side and two stages for low-voltage side, as a total of seven stages, are offered for earth-fault protection. Two stages are for directional functionality RET670, while the others are only for non-directional earth-fault protection EFxPTOC.The OPERATE outputs are connected to the Master Trip and output X105-SO3 via generic timer TPGAPC3, and also to the alarm LED 4.It is selectable by parameter whether the earth-fault protection function uses measured or calculated Io. However, when highimpedance based restricted earth-fault protection HREFPDIF1/2,which needs dedicated differential current measurement channel, is used on the high-voltage side or low-voltage side, the earth-fault protections mentioned here should use only calculated Io from threephase currents.Three overvoltage and three undervoltage protection stages PHPTOV1/2/3 and PHPTUV1/2/3 offer protection against abnormal phase voltage conditions. A failure in the voltage measuring circuit is detected by the fuse failure function and the activation is connected to undervoltage protection functions, to avoid faulty undervoltage tripping.
RET670 ABB PLC
RET670 ABB PLC
The arc protection offers individual function blocks for three arc sensors that can be connected to the relay. Each arc protection function block has two different operation modes, with or without phase and residual current check. The OPERATE outputs from the arc protection function blocks are connected to the Master Trip and alarm LED 11.All START and OPERATE outputs from the protection stages are routed to trigger the disturbance recorder or, alternatively, only to be recorded by the disturbance recorder,depending on the parameter settings. Additionally, some selected signals from different functions and some binary inputs from X110 and RET670 are also connected.There are two types of disconnector and earthing switch blocks available.RET670…4 and ESXSWI1 are controllable type. By default, the controllableblocks are connected in default configuration logic. If the status-only type is preferred,the status-only type of disconnector and earthing switch blocks can be used instead of the controllable blocks type. The connection and configuration of the status-only blocks can be made using PCM600.
RET670 ABB PLC
♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦♦…♦
Shipping:
1. Your item will be shipped to all countries via EMS, unless one country cannot be shipped via EMS. We will choose DHL, UPS, or FedEx. Please leave us your phone number.
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!
Related models:
500MBA02 1MRB150003R0003 1MRB200053-M
500CSP04
There are no reviews yet.