瓦斯發(fā)電機組的電氣保護一般設(shè)置有過載、高頻低頻、差動、接地、勵磁故障等，不同的廠家保護配置有所不同。今天主要來講講瓦斯發(fā)電機組電氣保護整定及傳動試驗相關(guān)內(nèi)容事項。

The electrical protection of gas generator sets generally includes overload, high-frequency and low-frequency, differential, grounding, excitation fault, etc. The protection configurations of different manufacturers are different. Today we mainly talk about the electrical protection setting and transmission test of gas generator sets.

試驗時參照燃機電氣保護裝置技術(shù)文件，對定值單的內(nèi)容逐項進行核對，設(shè)置保護模塊中機組發(fā)電機各側(cè)的CT變比、PT變比、電流電壓值及各種保護參數(shù)。

During the test, refer to the technical documents of the gas turbine electrical protection device, check the contents of the setting sheet item by item, and set the CT transformation ratio, PT transformation ratio, current and voltage values and various protection parameters at each side of the unit generator in the protection module.

調(diào)試時用繼電保護測試儀對保護模塊進行相應(yīng)的模擬故障試驗，使保護可靠動作，檢查各插件面板指示燈動作及出口繼電器輸出情況，用萬用表在端子排查該保護的所有跳閘出口接點動作是否正確，外部有連鎖的接點檢查連鎖動作情況。

During commissioning, relay protection tester shall be used to conduct corresponding simulated fault test on the protection module to make the protection operate reliably. Check the action of indicator light on each plug-in panel and the output of outlet relay. Use a multimeter to check whether all tripping outlet contacts of the protection act correctly at the terminal. Check the interlocking action of external interlocking contacts.

一般應(yīng)檢查發(fā)電機保護動作后連鎖跳閘出口高壓開關(guān)、瓦斯氣預(yù)處理系統(tǒng)輸入及排空閥、廠區(qū)鍋爐系統(tǒng)等連鎖動作情況。

Generally, the interlocking actions of the high-voltage switch at the outlet of the interlocking trip, the input and vent valve of the gas pretreatment system, the boiler system in the plant area, etc. after the generator protection action should be mainly checked.

驗證各系統(tǒng)邏輯動作的準確性及可靠性。試驗過程中需要注意跳閘出口繼電器輸出接點極性應(yīng)與外回路直流電源極性配合。

Verify the accuracy and reliability of the logic actions of each system. During the test, it shall be noted that the polarity of the output contact of the tripping outlet relay shall match the polarity of the external circuit DC power supply.

試驗過程中送電、送氣及其他工作事宜均由調(diào)試總負責(zé)人負責(zé)，做到各系統(tǒng)有序協(xié)調(diào)，專門的調(diào)試人員應(yīng)參加調(diào)試各階段工作的檢查、交接驗收等工作。

During the test, the general person in charge of commissioning shall be responsible for power transmission, gas transmission and other work to ensure orderly coordination of all systems. Special commissioning personnel shall participate in the inspection, handover and acceptance of work at each stage of commissioning.

瓦斯發(fā)電機組在試驗過程時一旦發(fā)生瓦斯泄漏，嚴禁在運行狀態(tài)下用鐵質(zhì)工具對泄漏點進行修理緊固，應(yīng)停機后將設(shè)備或管道內(nèi)瓦斯排盡后再做處理，同時在發(fā)電廠區(qū)域內(nèi)嚴禁吸煙，嚴禁采用非防爆設(shè)備作業(yè)，嚴禁動火動焊作業(yè)。更多相關(guān)內(nèi)容就來我們網(wǎng)站http://www.51credits.cn進行留言咨詢吧！

In case of gas leakage during the test of gas generator set, it is strictly forbidden to repair and fasten the leakage point with iron tools under the running state. The gas in the equipment or pipeline shall be drained after shutdown. At the same time, smoking is strictly prohibited in the power plant area, non explosion proof equipment is strictly prohibited, and hot welding is strictly prohibited. More relevant content will come to our website http://www.51credits.cn Leave a message for consultation!