產(chǎn)品內容介紹
Kollmorgen B-102-A-21運行減速機
REG670用于保護從相對較小的機組到最大的發(fā)電機組，對發(fā)電機和發(fā)電機變壓器組進(jìn)行控制和監測。IED有一個(gè)全面的功能庫，涵蓋了大多數發(fā)電機應用的要求?？捎玫拇罅磕M輸入與大型功能庫一起，使許多功能集成在一個(gè)IED中。在典型應用中，兩個(gè)單元可以提供全部功能，也可以提供高度冗余。REG670也可用于保護和控制并聯(lián)電抗器。定子接地故障保護包括傳統的95%以及100%注入和三次諧波保護。當使用基于注入的保護時(shí)，100%的機器定子繞組，包括星點(diǎn)，在所有操作模式下都受到保護?；谌沃C波的100%定子接地故障保護采用三次諧波差動(dòng)電壓原理。即使機器處于靜止狀態(tài)，基于注入的100%定子接地故障保護也可以運行。IED中包括極滑、欠勵磁、轉子接地故障、負序電流保護等久經(jīng)驗證的算法。REG670中的發(fā)電機差動(dòng)保護適用于考慮了長(cháng)直流時(shí)間常數和短跳閘時(shí)間要求等因素的發(fā)電機應用。由于許多保護功能可以作為多個(gè)實(shí)例使用，因此可以在一個(gè)IED中保護多個(gè)對象?？梢詾榧稍诰哂邪l(fā)電機主保護的同一IED中的輔助電力變壓器提供保護。因此，這一概念可以實(shí)現非常經(jīng)濟高效的解決方案。
差動(dòng)保護
發(fā)電機差動(dòng)保護GENPDIF定子繞組相間短路通常會(huì )導致非常大的故障電流。短路有損壞絕緣、繞組和定子鐵芯的風(fēng)險。較大的短路電流會(huì )產(chǎn)生較大的力，甚至會(huì )損壞發(fā)電廠(chǎng)中的其他部件，如渦輪機和發(fā)電機渦輪軸。為了限制定子繞組短路造成的損壞，故障清除必須盡可能快（瞬時(shí)）。如果發(fā)電機組與靠近其他發(fā)電機組的電力系統相連，則快速故障清除對于保持非故障發(fā)電機的瞬態(tài)穩定性至關(guān)重要。REG670還可以實(shí)現寶貴的監控可能性，因為許多過(guò)程值可以傳輸到操作員HMI。廣泛的應用靈活性使該產(chǎn)品成為新裝置和現有發(fā)電廠(chǎng)翻新的最佳選擇。串行數據通信通過(guò)光纖連接來(lái)確?？垢蓴_能力。廣泛的應用靈活性使該產(chǎn)品成為新裝置和現有裝置翻新的最佳選擇。通過(guò)使用專(zhuān)利算法REG670（或670系列的任何其他產(chǎn)品），可以在9Hz到95Hz的很寬范圍內跟蹤電力系統頻率。為此，最好將發(fā)電機端子的三相電壓信號連接至IED。然后IED可以采用其濾波算法，以便正確測量連接到IED的所有電流和電壓信號的相位。該特性對于發(fā)電機啟動(dòng)和停機過(guò)程中保護裝置的正確運行至關(guān)重要。
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 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. 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.
Differential protection
Generator differential protection GENPDIF Short circuit between the phases of the stator windings causes normally very large fault currents. The short circuit gives risk of damages on insulation, windings and stator iron core. The large short circuit currents cause large forces, which can cause damage even to other components in the power plant, such as turbine and generator-turbine shaft. To limit the damage due to stator winding short circuits, the fault clearance must be as fast as possible (instantaneous). If the generator block is connected to the power system close to other generating blocks, the fast fault clearance is essential to maintain the transient stability of the non-faulted generators. 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. Serial data communication is via optical connections to ensure immunity against disturbances. The wide application flexibility makes this product an excellent choice for both new installations and the refurbishment of existing installations. By using patented algorithm REG670 (or any other product from 670 series) can track the power system frequency in quite wide range from 9Hz to 95Hz. In order to do that preferably the three-phase voltage signal from the generator terminals shall be connected to the IED. Then IED can adopt its filtering algorithm in order to properly measure phasors of all current and voltage signals connected to the IED. This feature is essential for proper operation of the protection during generator start-up and shut-down procedure.
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PLC可編程控制器模塊，DCS卡件，ESD系統卡件，振動(dòng)監測系統卡件，汽輪機控制系統模塊，燃氣發(fā)電機備件等，優(yōu)勢品牌：Allen Bradley、BentlyNevada、ABB、Emerson Ovation、Honeywell DCS、Rockwell ICS Triplex、FOXBORO、Schneider PLC、GE Fanuc、Motorola、HIMA、TRICONEX、Prosoft等各種進(jìn)口工業(yè)零部件、歐美進(jìn)口模塊。
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