REG670  Version 2.2 Generator protection

Description

REG670  Version 2.2 Generator protection

The REG670 is used for protection, control and monitoring of generators and generator-transformer blocks from relatively
small units up to the largest generating units. The IED has a comprehensive function library, covering the requirements for
most generator applications. The large number of analog inputs available enables, together with the large functional
library, integration of many functions in one IED. In typical applications two IED units can provide total functionality, also
providing a high degree of redundancy. REG670 can as well be used for protection and control of shunt reactors.
Stator earth fault protection, both traditional 95% as well as 100% injection and 3rd harmonic based are included. When
the injection based protection is used, 100% of the machine stator winding, including the star point, is protected under all
operating modes. The 3rd harmonic based 100% stator earth fault protection uses 3rd harmonic differential voltage
principle. Injection based 100% stator earth fault protection can operate even when machine is at standstill. Well proven
algorithms for pole slip, underexcitation, rotor earth fault, negative sequence current protections, and so on, are included in the IED.

REG670

The generator differential protection in the REG670 adapted to operate correctly for generator applications where factors as long DC time constants and requirement on short trip time
have been considered.
As many of the protection functions can be used as multiple instances there are possibilities to protect more than one
object in one IED. It is possible to have protection for an auxiliary power transformer integrated in the same IED having
main protections for the generator. The concept thus enables very cost effective solutions.
The REG670 also enables valuable monitoring possibilities as many of the process values can be transferred to an operator HMI.
The wide application flexibility makes this product an excellent choice for both new installations and for refurbishment in existing power plants.

Please contact Sunny sales@xiongbagk.cn for the best price.

➱ sales manager: Sunny
➱ email mailto: sales@xiongbagk.cn
➱ Skype/WeChat: 18059884797
➱ phone/Whatsapp: + 86 18059884797
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