串諧試驗裝置使用原理：

我們已(yi)知，在(zai)回(hui)(hui)路頻(pin)率f=1/2π√LC時，回(hui)(hui)路產生(sheng)諧(xie)(xie)振(zhen)，此(ci)時試品(pin)上(shang)的電(dian)(dian)(dian)壓(ya)(ya)是勵磁變高(gao)(gao)壓(ya)(ya)端輸出(chu)電(dian)(dian)(dian)壓(ya)(ya)的Q倍。Q為(wei)系統品(pin)質因素，即電(dian)(dian)(dian)壓(ya)(ya)諧(xie)(xie)振(zhen)倍數，一(yi)般為(wei)幾十到一(yi)百以上(shang)。先通過調節變頻(pin)電(dian)(dian)(dian)源(yuan)(yuan)的輸出(chu)頻(pin)率使回(hui)(hui)路發(fa)生(sheng)串聯諧(xie)(xie)振(zhen)，再在(zai)回(hui)(hui)路諧(xie)(xie)振(zhen)的條件下調節變頻(pin)電(dian)(dian)(dian)源(yuan)(yuan)輸出(chu)電(dian)(dian)(dian)壓(ya)(ya)使試品(pin)電(dian)(dian)(dian)壓(ya)(ya)達到試驗(yan)值。由于回(hui)(hui)路的諧(xie)(xie)振(zhen)，變頻(pin)電(dian)(dian)(dian)源(yuan)(yuan)較小的輸出(chu)電(dian)(dian)(dian)壓(ya)(ya)就可在(zai)試品(pin)CX上(shang)產生(sheng)較高(gao)(gao)的試驗(yan)電(dian)(dian)(dian)壓(ya)(ya)。

設備主要技術參數

*工作(zuo)電(dian)源;220V/380V,50HZ *試(shi)驗容(rong)量：30-30000KVA

*(試驗電壓：1000KV及以下 *諧振頻率范(fan)圍：20-300Hz

*試驗電壓波形：正弦波波形畸變率小于等于0.3%

*試驗(yan)電壓(ya)冷(leng)確度：1級

*頻率調節：0.01Hz *保(bao)護響應時間：小于1微秒

*系統(tong)具有(you)過(guo)電壓保(bao)(bao)(bao)護、過(guo)電流保(bao)(bao)(bao)護、放電保(bao)(bao)(bao)護、擊穿跳閘保(bao)(bao)(bao)護、過(guo)熱保(bao)(bao)(bao)護。

串諧試驗裝置組(zu)成部件： 由變頻電(dian)源、勵磁變壓器(qi)(qi)、高壓電(dian)抗器(qi)(qi)和(he)電(dian)容分壓器(qi)(qi)組(zu)成。

1.變(bian)(bian)頻(pin)電(dian)(dian)源：將(jiang)220V/380V，50HZ的電(dian)(dian)源變(bian)(bian)為頻(pin)率可(ke)調、電(dian)(dian)壓連續可(ke)調，同(tong)時集操(cao)作、保護、控制、監測功能于一體

2.勵磁(ci)變壓(ya)器：將變頻電源輸(shu)出的電壓(ya)升壓(ya)，同時隔離高壓(ya)和低壓(ya)

3.高壓(ya)電抗(kang)器(qi)：與容性(xing)試品(pin)發(fa)生串聯諧振

4.分壓(ya)器：測量調節(jie)器上的高(gao)壓(ya)電壓(ya)值和低壓(ya)