瓦斯發(fā)電機組的電氣保護一般設置有過(guò)載、高頻低頻、差動(dòng)、接地、勵磁故障等，不同的廠(chǎng)家保護配置有所不同。今天主要來(lái)講講瓦斯發(fā)電機組電氣保護整定及傳動(dòng)試驗相關(guān)內容事項。

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(shí)參照燃機電氣保護裝置技術(shù)文件，對定值單的內容逐項進(jìn)行核對，設置保護模塊中機組發(fā)電機各側的CT變比、PT變比、電流電壓值及各種保護參數。

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.

調試時(shí)用繼電保護測試儀對保護模塊進(jìn)行相應的模擬故障試驗，使保護可靠動(dòng)作，檢查各插件面板指示燈動(dòng)作及出口繼電器輸出情況，用萬(wàn)用表在端子排查該保護的所有跳閘出口接點(diǎn)動(dòng)作是否正確，外部有連鎖的接點(diǎn)檢查連鎖動(dòng)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.

一般應檢查發(fā)電機保護動(dòng)作后連鎖跳閘出口高壓開(kāi)關(guān)、瓦斯氣預處理系統輸入及排空閥、廠(chǎng)區鍋爐系統等連鎖動(dòng)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.

驗證各系統邏輯動(dòng)作的準確性及可靠性。試驗過(guò)程中需要注意跳閘出口繼電器輸出接點(diǎn)極性應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(guò)程中送電、送氣及其他工作事宜均由調試總負責人負責，做到各系統有序協(xié)調，專(zhuān)門(mén)的調試人員應參加調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(guò)程時(shí)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(diǎn)進(jìn)行修理緊固，應停機后將設備或管道內瓦斯排盡后再做處理，同時(shí)在發(fā)電廠(chǎng)區域內嚴禁吸煙，嚴禁采用非防爆設備作業(yè)，嚴禁動(dòng)火動(dòng)焊作業(yè)。更多相關(guān)內容就來(lái)我們網(wǎng)站http://m.elmasticar.com進(jìn)行留言咨詢(xún)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://m.elmasticar.com Leave a message for consultation!