超音波檢測儀電氣檢測系統(tǒng)
當(dāng)絕緣子周圍的空氣被電離時,會產(chǎn)生化學(xué)反應(yīng),腐蝕金屬部件,削弱絕緣物的絕緣能力。電暈放電產(chǎn)生的高能量將導(dǎo)致機械部件嚴(yán)重?fù)p壞,造成非預(yù)期性停運和對成千上萬的服務(wù)客戶造成影響,嚴(yán)重的可導(dǎo)致火災(zāi)和爆炸出現(xiàn)。特別是工廠中由電氣原因引起的火災(zāi)和爆炸會因現(xiàn)場危險和有毒化學(xué)物的存在產(chǎn)生嚴(yán)重的連鎖反應(yīng)。
應(yīng)用傳統(tǒng)的紅外成像技術(shù)可以發(fā)現(xiàn)肉眼所無法察及的熱點現(xiàn)象。但是電暈、電弧、電痕等現(xiàn)象并不一定伴隨明顯的升溫現(xiàn)象;并且環(huán)境高溫掩飾了這些現(xiàn)象。但是,這些想象卻產(chǎn)生明顯的超聲噪音,可利用超聲檢測設(shè)備進行檢測。超聲波檢測系統(tǒng)完善了絕緣檢測工作,使您可以探聽到絕緣子故障、線套、變壓器、端套、避雷針等故障聲響。高壓系統(tǒng)的超聲檢測彌補了熱像技術(shù)的不足。
主機技術(shù)參數(shù):
功 能:多功能檢測儀
◎顯 示:高對比度、LCD帶背光顯示,100×32像素
◎鍵 盤:8個功能按鍵
◎量 程:-10dBμV~120dBμV
◎測量分辨率:0.1dBμV
◎靈敏度:可檢測到壓力6psi、孔徑0.1mm、距離70英尺的泄漏
◎*低極限:1×10-2~1×10-3std.cc/sec.FREON
◎精 度:±0.5dBμV
◎信噪比:-5dBμV典型
◎帶 寬:(-3dB)2kHz
◎自動關(guān)機:預(yù)設(shè)時間自動關(guān)機
◎工作溫度:-15℃到+60℃
◎電池包:1.3Ah可充電鎳氫電池
背光關(guān)閉時使用8~10小時
充電時間:5~6小時
壽命:500~1000次充/放電循環(huán)
◎外 殼:軋制鋁材,橡皮保護套
◎尺 寸:203x38x88mm(LxHxW)
◎重 量:約700克(含電池和皮套) 商品特性:
Electrical Inspections
Corona discharge, arcing, tracking, damaged line bushings, and other potentially dangerous and wasteful conditions in high voltage systems produce ultrasound as a warning of future failure. By itself, or as a compliment to Infrared Imaging, Ultrasonic Detection has become the technology of choice for electrical inspections of:
• Transmission & Distribution Lines
• Substation Inspections
• Switch Gear
• Transformers
• Partial Discharge
• Arcing, Tracking, and Corona
• Radio/TV Interference
Electrical faults emit ultrasound at the site of the problem. Scan an area in the same way one would for leaks. Characteristic frying, popping, buzzing, and humming sounds can be associated with different faults. Build a library of faults by recording sound waves and sharing them on your company intranet.