Keep the power cleaner.
讓電能更清潔！
讓電能更清潔！
瀚爾爵電氣（HDAELEC）
德國(guó)工藝 百年傳承
源自歐洲 品質(zhì)保證
From European ?quality assurance
防爆防漏 質(zhì)量把控
EXPLOSION-PROOF AND LEAK-PROOF QUALITY CONTROL
常態(tài)現(xiàn)貨供應(yīng)
NORMALLY AVAILABLE FROM STOCK
歐洲工廠考察
European factory inspection
關(guān)于我們 / About us
瀚爾爵電氣（上海）有限公司是一家集產(chǎn)品技術(shù)進(jìn)出口，研發(fā)為一體的專業(yè)電能質(zhì)量綜合解決方案及產(chǎn)品的服務(wù)商。公司總部位于上海，銷售服務(wù)網(wǎng)絡(luò)覆蓋整個(gè)中國(guó)地區(qū)。
瀚爾爵一直與歐洲幾大知名電氣企業(yè)合作，是他們?cè)谥袊?guó)地區(qū)的核心合作伙伴。瀚爾爵電氣以龐大的中國(guó)市場(chǎng)為依托，將歐洲精湛的工藝和先進(jìn)的電能質(zhì)量產(chǎn)品廣泛的運(yùn)用于國(guó)內(nèi)外的建材、冶金、石油、化工、市政、港口、汽車、商業(yè)、醫(yī)療等各行業(yè)的電力系統(tǒng)中。
我們的使命是：“Keep the power cleaner”讓電能更清潔！貼身服務(wù)于每一位中國(guó)客戶，亦將優(yōu)秀的服務(wù)精神貫穿于研發(fā)、生產(chǎn)、銷售的全過(guò)程，全力為每一位客戶提供先進(jìn)的電能質(zhì)量產(chǎn)品、綜合解決方案以及專業(yè)完善的售后服務(wù)。瀚爾爵電氣將企業(yè)發(fā)展與社會(huì)使命緊密地聯(lián)系在一起。提升電能質(zhì)量，降低用電成本，服務(wù)客戶，服務(wù)社會(huì)，是我們矢志不渝的目標(biāo)和追求。
工程案例 / Engineering case
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新聞資訊 / NEWS
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電流互感器二次為什么不能開(kāi)路？
2025-10-27
正常運(yùn)行時(shí)，二次電流產(chǎn)生的反向磁通抵消一次電流產(chǎn)生的磁通，使得鐵芯中總磁通較小，所以二次電壓接近為零。若二次斷開(kāi)，二次電流為零，沒(méi)有反向磁通的抵消，一次電流產(chǎn)生的磁通就是總磁通，急劇變大，二次側(cè)將會(huì)出現(xiàn)高達(dá)數(shù)千伏的電壓，此時(shí)危險(xiǎn)來(lái)臨。Why Can't the Secondary Side of a Current Transformer Be Open-Circuited?During normal operation, the reverse magnetic flux generated by the secondary current offsets the magnetic flux generated by the primary current. This keeps the total magnetic flux in the iron core relatively small, so the secondary voltage is close to zero. If the secondary side is disconnected, the secondary current becomes zero, and there is no offset from the reverse magnetic flux. The magnetic flux generated by the primary current then becomes the total magnetic flux, which increases sharply. As a result, the secondary side will develop a voltage as high as several thousand volts, and at this point, dangers arise.
有功功率、無(wú)功功率的關(guān)系
2025-10-27
正常情況下，視在功率是指，容量固定不變，把視在功率看作圓的半徑，橫軸上投影是有功功率，縱軸上投影是無(wú)功功率，夾角就是功率因數(shù)角。當(dāng)夾角為0時(shí)，功率因數(shù)為1，容量直接等于有功功率，那么當(dāng)夾角為90°時(shí)，是什么情況呢？The relationship between active power and reactive powerUnder normal circumstances, apparent power refers to a situation where the capacity remains constant. Think of apparent power as the radius of a circle, with the projection on the horizontal axis representing active power and the projection on the vertical axis representing reactive power. The angle formed is the power factor angle. When the angle is 0, the power factor is 1, and the capacity is directly equal to the active power. So what happens when the angle is 90°?
電容并聯(lián)或串聯(lián)后的三種狀態(tài)
2025-10-21
相同參數(shù)的兩個(gè)電容并聯(lián)后，電容的耐壓值不變，但是容量翻兩倍！相同參數(shù)的兩個(gè)電容串聯(lián)后，耐壓值增加了兩倍，但是容量會(huì)減半！相同參數(shù)的兩個(gè)有極性電容背靠背反向串聯(lián)后就組成了無(wú)極性電容，電容的耐壓值不變，容量值減半！ Three States of Capacitors After Parallel or Series ConnectionWhen two capacitors with the same parameters are connected in parallel, the voltage rating remains unchanged, but the capacitance doubles!When two capacitors with the same parameters are connected in series, the voltage rating triples, while the capacitance is halved!When two polar capacitors with the same parameters are connected in reverse series back-to-back, they form a non-polar capacitor. The withstand voltage value of the capacitor remains unchanged, and the capacity value is halved!
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