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主營産品： QDB-101直流接地故障查找儀 NSHH蓄電池活化儀 BL608直流系統接地故障測試儀 ML.1-LJ-805直流接地故障定位儀 NSNZ蓄電池內阻測試儀

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電工電力檢測儀器

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从安全出发，直流系統接地故障測試儀一切为了安全着想

更新时间：2020-03-03 点击次数：981次

　　在電路工作過程中直流系統主要爲線路的控制保護裝置提供電源，它對于整個電路的安全連續運行有著極爲重要的意義。如果發生兩點接地現象就會引起保護裝置誤動，從而造成重大安全事故。因此需要直流系統接地故障測試儀對接地點進行准確迅速的檢測，方便工作人員及時排除，避免電路接地危害。

直流系統接地故障測試儀

　　一切为了安全着想。直流系統接地故障測試儀以可靠的低频信号方式进行检测，对电路系统不会产生影响。各种类型的接地故障，均能迅速地查找出接地点，准确率达到100％。

　　1、使用簡單。只需打開電源開關就可直接使用。

　　2、安全可靠。對直流系統不會産生任何影響。

　　3、適用電壓等級多。各個級別的直流系統電壓都可以使用。

　　4、適用範圍廣。任何類型電廠電路問題都可使用。

　　5、攜帶方便，信號接收器自帶電池，無需外接電源，可以隨身攜帶到任何地方查找接地點。

　　6、無需斷電，不影響系統正常工作。

　　7、抗幹擾能力強，克服了系統分布電容的影響。

　　8、直流系統接地故障測試儀智能化充电管理，延长仪器使用寿命。

上一篇:只要直流接地查找儀测量地够快，接地故障就影响不了电路运行下一篇:直流系统安全运行，看直流系統接地故障測試儀如何贴心维护

The captain gave the order to cast off the lines. Hardly had the echo of his words ceased before the lines had fallen. Then he rang the signal to the engineer, and the great screw began to revolve beneath the stern of[Pg 49] the ship. Promptly at the advertised time the huge craft was under way. The crowd on the dock cheered as she moved slowly on, and they cheered again as she gathered speed and ploughed the water into a track of foam. The cheers grew fainter and fainter; faces and forms were no longer to be distinguished; the waving of hats and kerchiefs ceased; the long dock became a speck of black against the hilly shore, and the great city faded from sight. "But there is danger that you will get tired if we keep on much longer about the sights of Canton, and particularly the shopping part of it. Besides, we want to go out and see what there is in Hong-kong, and perhaps we may run across something new in the Chinese part of the city that we shall want to buy. A good many people say that you can buy Canton goods just as cheaply in Hong-kong as in the city they come from. That may be so; but then it is more satisfactory to get them there and have the pleasure of buying them on the spot. "Let's go back," whispered Lilian, and they turned and retraced their steps. The sight of the lovers sealed their lips. Doctor Allingham struggled for a few moments with a strange sense of bigness wanting to escape. Almost it was a physical sensation; as though the nervous energy in his brain had begun to flow independently of the controls that usually guided it through the channels graven by knowledge and experience. It was Lilian who spoke next, and there was a note of pain in her voice. The steam-engine is the most important, and in England and America best known among motive agents. The importance of steam contrasted with other sources of motive-power is due not so much to a diminished cost of power obtained in this way, but for the reason that the amount of power produced can be determined at will, and in most cases without reference to local conditions; the machinery can with fuel and water be transported from place to place, as in the case of locomotives which not only supply power for their own transit, but move besides vast loads of merchandise, or travel. The first principle to be pointed out in regard to belts, to distinguish them from shafts as a means of transmitting power, is that power is communicated by means of tensile instead of torsional strain, the power during transmission being represented in the difference of tension between the driving and the slack side of belts. In the case of shafts, their length, or the distance to which they may be extended in transmitting power, is limited by torsional resistance; and as belts are not liable to this condition, we may conclude that unless there are other difficulties to be contended with, belts are more suitable than shafts for transmitting power throughout long distances. Belts suffer resistance from the air and from friction in the bearings of supporting pulleys, which are necessary in long horizontal belts; with these exceptions they are capable of moving at a very high rate of speed, and transmitting power without appreciable loss. “Mr. Whiteside—and Jeff?” repeated Larry. Infantry." Now you've torn it. Sometimes there were crises of extraordinary violence when he was with difficulty held down in bed, and these at last wore him out. Towards dawn he fell into a troubled sleep. She opened her lips to protest, but the sound died on them, for he stooped and swept her up in his arms. She slipped her hand to his neck to steady herself, and they went forward again towards the south. Young Ralph Bardon had come into the room, and stood by the door while the last verse was being sung. He was there to give an invitation from his father, for every year the Squire provided the choristers with a mild debauch at Flightshot. Robert had been to several of these, and they glittered in his memory—the laughter and games, the merry fooling, the grand supper table gay with candles. What a joke it had been when someone had given the salt to Rosie Hubble instead of the sugar to eat with her apple pie, and when some other wag had pulled away Ern Ticehurst's chair from under him.... No one thought or spoke or wrote of anything else.[Pg 181] If at meetings Reuben tried to introduce Protection or the Franchise, he was silenced even by his own party. The Scott's Float toll-gate became as important as the Sluice or the Brede River or the Landgate Clock had been in other elections, and nothing, no matter of what national importance, could stand against it. HoME 另类淫荡p ENTER NUMBET 0010www.3dyifu.org.cn
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从安全出发，直流系統接地故障測試儀一切为了安全着想