LG-11功率方向繼電器產(chǎn)品介紹（中文版）
LG-11功率方向繼電器是專為電力系統(tǒng)保護(hù)設(shè)計(jì)的重要控制元件，采用成熟的機(jī)電一體化技術(shù)方案，為電網(wǎng)運(yùn)行提供可靠的功率方向判別功能。產(chǎn)品基于電磁感應(yīng)原理，通過優(yōu)化磁路結(jié)構(gòu)和觸點(diǎn)系統(tǒng)設(shè)計(jì)，可精準(zhǔn)識(shí)別電力線路中功率傳輸方向，有效配合各類繼電保護(hù)裝置實(shí)現(xiàn)系統(tǒng)故障的快速隔離。
該裝置內(nèi)置高靈敏度的方向判別模塊，通過特殊設(shè)計(jì)的相位比較電路，能夠準(zhǔn)確捕捉線路電壓與電流的相位關(guān)系變化。當(dāng)系統(tǒng)發(fā)生短路、逆功率等異常工況時(shí)，繼電器可在10-15毫秒內(nèi)完成方向判定，觸發(fā)機(jī)構(gòu)動(dòng)作的響應(yīng)偏差控制在±3%以內(nèi)，確保保護(hù)系統(tǒng)的選擇性動(dòng)作。產(chǎn)品支持0.5A-10A寬范圍電流輸入和50-500V電壓輸入，配合可調(diào)節(jié)的動(dòng)作閾值設(shè)定，可適配不同電壓等級(jí)的輸配電網(wǎng)絡(luò)。
在結(jié)構(gòu)設(shè)計(jì)方面，繼電器采用模塊化組裝工藝，核心組件包含精密繞制的極化電磁系統(tǒng)、抗氧化銀合金觸點(diǎn)組以及耐沖擊的擺臂機(jī)構(gòu)。全封閉式外殼通過灌封工藝處理，內(nèi)部元件防護(hù)等級(jí)達(dá)到IP54標(biāo)準(zhǔn)，可在-25℃至+70℃環(huán)境溫度下穩(wěn)定工作。特別設(shè)計(jì)的磁屏蔽結(jié)構(gòu)能有效抑制外部磁場(chǎng)干擾，確保測(cè)量精度不受周邊電磁環(huán)境影響。
產(chǎn)品適用于發(fā)電廠、變電站、工礦企業(yè)配電網(wǎng)等場(chǎng)景，可配合過流保護(hù)裝置實(shí)現(xiàn)方向閉鎖功能，有效防止保護(hù)誤動(dòng)作。人性化的透明觀察窗設(shè)計(jì)便于運(yùn)維人員現(xiàn)場(chǎng)查看觸點(diǎn)狀態(tài)，嵌入式安裝結(jié)構(gòu)和標(biāo)準(zhǔn)化接線端子滿足不同機(jī)柜的裝配需求。經(jīng)過嚴(yán)苛的老化測(cè)試和環(huán)境試驗(yàn)驗(yàn)證，產(chǎn)品在潮濕、粉塵、振動(dòng)等復(fù)雜工況下仍能保持穩(wěn)定的動(dòng)作特性。
LG-11 Power Direction Relay Product Introduction (English Version)
The LG-11 Power Direction Relay is a critical control component specifically engineered for power system protection. Utilizing a proven electromechanical integration technical solution, this device delivers reliable power direction discrimination capabilities for grid operations. Based on electromagnetic induction principles, the relay features optimized magnetic circuit configuration and contact system design to accurately identify power flow direction in electrical circuits, enabling rapid fault isolation in coordination with various protective devices.
Equipped with a high-sensitivity directional discrimination module, the relay employs specially designed phase comparison circuitry to precisely detect changes in the phase relationship between line voltage and current. During system abnormalities such as short circuits or reverse power flow, the device completes directional determination within 10-15 milliseconds, with actuation response deviation controlled within ±3%. The relay supports wide-range current input from 0.5A to 10A and voltage input from 50V to 500V, complemented by adjustable operation threshold settings to accommodate various voltage-level transmission and distribution networks.
The product incorporates modular assembly technology, comprising a precision-wound polarized electromagnetic system, oxidation-resistant silver alloy contact groups, and shock-absorbing armature mechanisms. The fully enclosed housing utilizes potting technology to achieve IP54 protection grade, ensuring reliable operation within ambient temperatures ranging from -25℃ to +70℃. A specially designed magnetic shielding structure effectively suppresses external electromagnetic interference, maintaining measurement accuracy in challenging electromagnetic environments.
This relay finds application in power plants, substations, industrial power distribution systems, and other scenarios where directional blocking functions are required in coordination with overcurrent protection devices. The user-friendly transparent observation window facilitates on-site contact status inspection by maintenance personnel, while the embedded mounting structure and standardized terminal blocks ensure compatibility with various control panel configurations. Rigorous aging tests and environmental trials confirm the product s stable operational characteristics under complex conditions including humidity, dust, and mechanical vibration.
