PCS-915母差保護(hù)繼保試驗(yàn)方法研究

 

趙文婷，盧迪勇

（廣東電網(wǎng)公司東莞供電局, 廣東 東莞 523120）

 

    摘 要：對于目前主流的母差保護(hù)裝置，還沒有非常完善的邏輯校驗(yàn)方法，尤其是數(shù)據(jù)之外的試驗(yàn)儀加量原則。以南瑞繼保PCS-915母差保護(hù)裝置為例，簡要介紹其典型配置、動作判據(jù)及PCS-915與BP-2C的區(qū)別，并重點(diǎn)從原理、邏輯校驗(yàn)?zāi)Ｐ?、加量原則等方面分別闡述了復(fù)壓閉鎖差動邏輯校驗(yàn)、大差和小差K 值校驗(yàn)、死區(qū)保護(hù)邏輯以及失靈保護(hù)邏輯校驗(yàn)方法，為220 kV母差保護(hù)裝置的驗(yàn)收和維護(hù)提供參考依據(jù)。

    關(guān)鍵詞：PCS-915；母差保護(hù)；繼保試驗(yàn)；死區(qū)保護(hù)；失靈保護(hù)

    中圖分類號：TM588     文獻(xiàn)標(biāo)識碼：A     文章編號：1007-3175(2020)01-0053-06

    Abstract: For the current mainstream busbar differential protection device, there is no very thorough logic method of calibration, especially for the tester dosage principle beyond data.Taking NR relay protection PCS-915 busbar differential protection device for example, this paper briefly introduced the typical configuration, the movement criterion and the difference between PCS-915 and BP-2C, expounded the re-pressing shutting differential motion logic verification, the big and small differences K value verification, the dead zone protection logic and the failure protection logic verification method emphatically from the aspects of principle, logic verification model and dosage principle model etc, which provides the reference frame for the acceptance inspection and maintenance of 220 kV busbar differential protection device.

    Key words: PCS-915; busbar differential protection; relay protection; dead zone protection; failure protection