真空断路器ZW25-12
用途
ZW25-12型户外柱上高压真空断路器，适用于三相交流50Hz、10kV的配电系统，作为分合负载电流、过载电流及短路电流之用，也可 作为城市电网的分段开关。
结构及特点该产品为三相共箱式结构，由本体及弹簧操动机构两部分组成。本体部分由导电回路、绝缘部分及传动系统组成。由真空灭弧室与进出线导电杆组成导电部分。真空天弧室采用纵磁场陶瓷外壳结构，具有高分断能力及机械寿命、电寿命长的特点，箱内设。专用的绝缘支架，既可作为真空灭弧空的安装支架，又可作为相间绝缘。
箱体采用全密封结构，可防止雨水、潮湿气体侵人箱内而产生凝露，以免引起内部电穿。产品内绝缘为空气绝缘，无油、无渗漏、无爆炸危害，从而提高了产品运行的**司膏性。产品外绝缘采用硅橡胶套管（陶瓷套管），具有绝缘性能好和防凝露、抗污秽能力的特点。
传动系统由传动主轴拐臂和连接件组成，与操动机构及真空灭弧室动导电杆形成传。链，驱动断路器的分、合闸。操动机构采用高可靠性的电动机储能和手动储能的弹簧。
机构具有电动和手动分合闸、自动重合闸及过电流脱扣功能。机构置于断路器端部，上面；分、合闸及已储能指示标牌，何干物松损作。
Instructions
From the chart select the size of tape required for the particular size of pipe to be wrapped.
Adjust center shaft (7) according to the size tape needed an lock in place with wing nut (8). NOTE: The Tape Width Chart below shows maximum tape widths for certain sizes of pipe with a single layer applied. Smaller width rolls may be take longer.
As pipe size increases, move wheels (15) farther apart so they grasp the pipe as much as possible. Wing nuts (14) are provided to lock wheel axles so they don't twist out. NOTE: one wheel needs a spacer to clear adjustment plate (9).
Adapter plate is bolted to right wing in the two closest holes and wheels transferred to the holes in the plate. The purpose of the plate is to lift the right wing of the Wrapster in increasing the angle between it and the pipe. It allows for wider tape sizes on pipes smaller than 12", as shown in the chart. NOTE: It should always be used on 2" pipe.
The tape is place on the Wrapster so that the tape comes off the top of the roll in a direction going away from the handle (12). This places tension knob (4) on operator's left.
The tape is fastened to the pipe with enough tension that the machine will not move by itself. Tension is increased or decreased simply by tightening or loosening knob (4) against tension spring (6).
The release liner separating layers of tape can be used to help wrap the pipe. Grasp the release liner after fastening the tape to the pipe. Pull the release liner toward the operator and over the handle (12). The liner should be pulled downward and used to rotate the machine around the pipe. Always pull the liner toward the pipe to keep the machine tight to the pipe. Rotate the machine downward using the liner, then grab the liner from the opposite side as it comes around the pipe and pull upward.
After a couple of wraps check for overlap desired. To increase lap, loosen knob (10) tightening the carriage bolt in the slot (11) that places the two wings closer to parallel position (in a completely parallel position there will be no travel and it will continue to wrap over itself.) To decrease lap, move carriage bolt to a lower position (toward wheels). This increases the angle between wings giving more spiral action down the pipe.
Double-wrapping can be done two different ways: either by just going over the pipe twice or setting the Wrapster for 1/2 as much travel. NOTE: When double wrapping, you may use wider tape than the chart suggests, i.e., 2" pipe may be double wrapped using 4" tape.
Changing tape -- remove tension knob (4), loosen handle (12) then pull the roll off and replace tape making sure tape is put on correctly. NOTE: Wrapster #3 may be used to wrap joints, short radius bends or lengths of any size pipe. It will also wrap vertically which will make it an asset in plant applications.
Tape Width Chart
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Without adapter plate
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With adapter plate
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no 2" pipe
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2" pipe - 2" tape
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3" pipe - 2" tape
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3" pipe - 4" tape
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4" pipe - 2" tape
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4" pipe - 4" tape
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6" pipe - 4" tape
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6" pipe - 4" tape
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8" pipe - 4" tape
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8" pipe - 6" tape
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10" pipe - 4" tape
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10" pipe - 6" tape
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12" pipe - 4" tape
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10" pipe - 6" tape
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24"-100" pipe - 6" or 9" tape
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Not used for piper larger than 12"
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