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SCONINC變換器SCONI-1000-112X,出售大秦 DTSI-F7G-2DAEYEON轉(zhuǎn)換器;DY-HSC-BCAA DY-HSC-BCNA
DAEYEON轉(zhuǎn)換器;DY-HSC-BDAA DY-HSC-BDNA
DAEYEON轉(zhuǎn)換器;DY-HSC-BOAA DY-HSC-BONA
DAEYEON轉(zhuǎn)換器;DY-HSC-C1AA DY-HSC-C1NA
DAEYEON轉(zhuǎn)換器;DY-HSC-C2AA DY-HSC-C2NA
DAEYEON轉(zhuǎn)換器;DY-HSC-C3AA DY-HSC-C3NA
DAEYEON轉(zhuǎn)換器;DY-HSC-AA DY-HSC-NA
DAEYEON轉(zhuǎn)換器;DY-HSC-C5AA DY-HSC-C5NA歷時1min，無絕緣擊穿或閃絡(luò)現(xiàn)象。不同一組觸點(diǎn)之間應(yīng)能承受交流有效值2000V/50Hz的試驗(yàn)電壓，歷時1min，無絕緣擊穿或閃絡(luò)現(xiàn)象。絕緣電阻在試驗(yàn)大氣條件下，繼電器各導(dǎo)電部分對外露非帶電金屬部分及外殼之間，用開路電壓為500V的儀器測其絕緣值，應(yīng)不小于20MΩ。工作壽命：繼電器在規(guī)定的負(fù)荷下為80000次，平均無故障率時間為8萬小時[1]。絲(fuse)也被稱為電流絲，IEC127將它定義為"熔斷體（fuse-b)"。其主要是起過載保護(hù)作用。電路中正確安置絲，絲就會在電流異常升高到一定的高度和熱度的時候，自身熔斷切斷電流，保護(hù)了電路運(yùn)行。[1]一百多年前由愛迪明的絲用于保護(hù)當(dāng)時昂貴的白熾燈。
DAEYEON轉(zhuǎn)換器;DY-HSC-C6AA DY-HSC-C6NA
DAEYEON轉(zhuǎn)換器;DY-HSC-CAAA DY-HSC-CANA
DAEYEON轉(zhuǎn)換器;DY-HSC-CBAA DY-HSC-CBNA
DAEYEON轉(zhuǎn)換器;DY-HSC-CCAA DY-HSC-CCNA
DAEYEON轉(zhuǎn)換器;DY-HSC-CDAA DY-HSC-CDNA
DAEYEON轉(zhuǎn)換器;DY-HSC-COAA DY-HSC-CONA
DAEYEON轉(zhuǎn)換器;DY-HSC-D1AA DY-HSC-D1NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D2AA DY-HSC-D2NA

DAEYEON轉(zhuǎn)換器;DY-HSC-D3AA DY-HSC-D3NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D4AA DY-HSC-D4NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D5AA DY-HSC-D5NA
DAEYEON轉(zhuǎn)換器;DY-HSC-D6AA DY-HSC-D6NA
DAEYEON轉(zhuǎn)換器;DY-HSC-DAAA DY-HSC-DANA
DAEYEON轉(zhuǎn)換器;DY-HSC-DBAA DY-HSC-DBNA
DAEYEON轉(zhuǎn)換器;DY-HSC-DCAA DY-HSC-DCNA
DAEYEON轉(zhuǎn)換器;DY-HSC-DDAA DY-HSC-DDNA
DAEYEON轉(zhuǎn)換器;DY-HSC-DOAA DY-HSC-DONA
DAEYEON轉(zhuǎn)換器;DY-HSC-O1AA DY-HSC-O1NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O2AA DY-HSC-O2NA

DAEYEON轉(zhuǎn)換器;DY-HSC-O3AA DY-HSC-O3NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O4AA DY-HSC-O4NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O5AA DY-HSC-O5NA
DAEYEON轉(zhuǎn)換器;DY-HSC-O6AA DY-HSC-O6NA
DAEYEON轉(zhuǎn)換器;DY-HSC-OAAA DY-HSC-OANA
DAEYEON轉(zhuǎn)換器;DY-HSC-OBAA DY-HSC-OBNA
DAEYEON轉(zhuǎn)換器;DY-HSC-OCAA DY-HSC-OCNA
DAEYEON轉(zhuǎn)換器;DY-HSC-ODAA DY-HSC-ODNA
DAEYEON轉(zhuǎn)換器;DY-HSC-OOAA DY-HSC-OONA

此外回路損耗也使諧振過電壓受到阻尼和。當(dāng)回路電阻大于一定的數(shù)值時，就不會出現(xiàn)強(qiáng)烈的鐵磁諧振過電壓。3）串聯(lián)諧振電路來說，產(chǎn)生鐵磁諧振過電壓的的必要條件是ω01/L0C；因此鐵磁諧振可在很大的范圍內(nèi)發(fā)生。4）維持諧振振蕩和抵償回路電阻損耗的能量均由工頻電源供給。為使工頻能量轉(zhuǎn)化為其它諧振的能量，其轉(zhuǎn)化必須是周期性且有節(jié)律的，即…1/2(1，3…）倍的諧振。5）鐵磁諧振對PT的損壞。電磁諧振（分頻）一般應(yīng)具備如下三個條件。①鐵磁式電壓互感器（PT）的非線性效應(yīng)是產(chǎn)生鐵磁諧振的主要原因。②PT感抗為容抗的100倍以內(nèi)，即參數(shù)匹配在諧振范圍。③要有激發(fā)條件，如PT突然合閘、單相接地突然消失、外界對的或操作產(chǎn)生的過電壓等。