Description
The REG670 is used for protection, control and monitoring ofgenerators and generator-transformer blocks from relativelysmall units up to the largest generating units. The IED has acomprehensive function library, covering the requirements formost generator applications. The large number of analoginputs available enables, together with the large functionallibrary, integration of many functions in one IED. In typicalapplications two IED units can provide total functionality, alsoproviding a high degree of redundancy. REG670 can as wellbe used for protection and control of shunt reactors. Stator earth fault protection, both traditional 95% as well as100% injection and 3rd harmonic based are included. Whenthe injection based protection is used, 100% of the machinestator winding, including the star point, is protected under alloperating modes. The 3rd harmonic based 100% stator earthfault protection uses 3rd harmonic differential voltageprinciple. Injection based 100% stator earth fault protectioncan operate even when machine is at standstill. Well provenalgorithms for pole slip, underexcitation, rotor earth fault,negative sequence current protections, and so on, areincluded in the IED.
The generator differential protection in the REG670 adaptedto operate correctly for generator applications where factorsas long DC time constants and requirement on short trip timehave been considered. As many of the protection functions can be used as multipleinstances there are possibilities to protect more than oneobject in one IED. It is possible to have protection for anauxiliary power transformer integrated in the same IED havingmain protections for the generator. The concept thus enablesvery cost effective solutions. The REG670 also enables valuable monitoring possibilities asmany of the process values can be transferred to an operatorHMI.
Forcing of binary inputs and outputs is a convenient way totest wiring in substations as well as testing configuration logicin the IEDs. Basically it means that all binary inputs andoutputs on the IED I/O modules (BOM, BIM, IOM & SOM) canbe forced to arbitrary values.
The Flexible Product Naming allows the customer to use anIED-vendor independent IEC 61850 model of the IED. Thiscustomer model will be exposed in all IEC 61850communication, but all other aspects of the IED will remainunchanged (e.g., names on the local HMI and names in thetools). This offers significant flexibility to adapt the IED to thecustomers' system and standard solution.
By using patented algorithm REG670 (or any other productfrom 670 series) can track the power system frequency inquite wide range from 9Hz to 95Hz (for 50Hz power system).In order to do that preferably the three-phase voltage signalfrom the generator terminals shall be connected to the IED.Then IED can adopt its filtering algorithm in order to properlymeasure phasors of all current and voltage signals connectedto the IED. This feature is essential for proper operation of theprotection during generator start-up and shut-downprocedure.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
① 24 hours email response (12 hours); ② For shipment outside Asia, please contact the seller.
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