SFQ三倍頻發生器

一、產品概況

　　對于電力變壓器、電壓互感器等被試品，除了要對全絕緣變壓器的主絕緣進行外施工頻高壓試驗外，而且還要對變壓器的縱絕緣以及半絕緣變壓器的主絕緣進行感應高壓試驗。
　　根據國家試驗《GB311.1 - 97》標(biao)準(zhun)，對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力變(bian)壓(ya)(ya)器(qi)及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)互感器(qi)感應試(shi)驗(yan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)大致2～3倍zui大工作(zuo)相電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)考慮。*，變(bian)壓(ya)(ya)器(qi)在額(e)定(ding)頻率(lv)，額(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)下(xia)，鐵芯接近飽和(he)，若用工頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)在被(bei)試(shi)變(bian)壓(ya)(ya)器(qi)繞組兩(liang)端施加大于額(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)試(shi)驗(yan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，則空載勵磁電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)會急劇增加，達到不(bu)可(ke)允許的(de)(de)程(cheng)度，從感應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)勢的(de)(de)關系式可(ke)以看出，為了施加大于額(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)試(shi)驗(yan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，而又不(bu)使鐵芯飽和(he)，可(ke)采用增加電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)頻率(lv)（f）的(de)(de)辦(ban)法，必須用三倍頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)發生器(qi)。

二、使用(yong)環境

1. 電(dian)源條件(jian)：三相(xiang)380V/50Hz

2. 輸出(chu)電壓：300V 150Hz 波(bo)形失真≤5%

3. 環(huan)境溫(wen)度：-15℃～ 40℃

4. 海拔高度(du)：不(bu)超過1000米

三、使用(yong)方法

1、 按試驗接線(xian)圖接好工(gong)作線(xian)，注意三(san)倍頻外(wai)殼必(bi)須可靠接地。

2、 合上三相調壓器電(dian)源(yuan)。

3、 合(he)上(shang)三倍(bei)頻電源控制箱(xiang)，控制箱(xiang)電源指示燈(deng)亮（綠色），按(an)下啟動按(an)鈕，工作指示燈(deng)亮（紅色），此(ci)時三倍(bei)頻發(fa)生(sheng)器已產(chan)生(sheng)三倍(bei)頻率及電壓。

4、 順(shun)時針旋轉控制(zhi)箱調(diao)壓(ya)器(qi)手柄，調(diao)壓(ya)器(qi)升壓(ya)到額定電壓(ya)。

5、 密(mi)切注意儀表指(zhi)示以及(ji)被試品情況直至(zhi)所需試驗時間。

6、 試驗(yan)完畢后，逆(ni)時針旋轉(zhuan)控制(zhi)箱調壓器手柄(bing)降壓，然后按下停(ting)止按鈕，并切斷電(dian)源。

三倍頻工作原理圖

1. 三倍(bei)頻發生器 ;

2. 電源(yuan)控制箱

四(si)、注(zhu)意事(shi)項

　　在增(zeng)加(jia)頻(pin)率(lv)后，為(wei)了避免介質損耗增(zeng)加(jia)對(dui)絕緣帶來不利(li)影響，試驗時間應(ying)相對(dui)縮短。

五、可供配套

1、電源控制箱
2、三倍發頻生器
3、產品說明書及合格證

　　感謝您選用本廠生產系列試驗產品，您如果要使用時，可需改進的地方，望來函告之，以便更好地為您服務，歡迎您光臨指導！
　　謝謝！