加拿大代写dissertation

加拿大圣佛朗西斯大学论文代写:继电器测试

加拿大圣佛朗西斯大学论文代写:继电器测试

保护继电器必须根据SAC的建议进行测试。电子部件失效的主要原因是电源、热、电压、过电压、电流波动、共振、年龄和湿度。振动可能会断裂或松动,会破坏电路板、组件外壳和绝缘,导致设备故障。过热可能由电压瞬变、高环境温度或电流涌流触发。水分可能导致金属元素的氧化和腐蚀,从而导致电路中断、短路和连接不良。对保护继电器的直接预防性维护,以消除故障原因,我在这里列出了以下方法:

测试电源电压与电源电压。

评估观察,所有链接,联系人以及领导是固定的和解放可行的振动的影响。

保持设备干燥和防止生锈和水分。

保持设备dirt-free通过定期吹或用真空吸尘器打扫灰尘,灰尘或其他污染物。使用干燥的罐装空气可以去除灰尘。建议不要使用空气压缩机或植物空气,因为湿度和污染物。

检查有足够的通风去除热保护继电器。

不必要地运行测试开关可能会带来有害的电压瞬变。作为一个例子,不要从他们的架子上画出印刷的电路板,以在没有真正需要的情况下进行评估。预防性的方法不应该被不必要地使用,因为这可能会增加自动化故障(Blackburn,j . Lewis)。,1998)。

测试过程

文档阶段:这个阶段也是至关重要的,因为它保持了决策的日期。由于先进的技术,现在测试系统提供定制的报告。

计划阶段:在这个阶段,作为一个测试工程师,我已经了解了要做什么测试,以及要记录哪些类型的评估数据供将来的审核和决策。

运行阶段:现在,这是进行测试的实际时间。在这个阶段,我必须小心,不要打开一个强大的电路,以免额外的电压被制造,并通过运行初步来伤害财产和工人。随后,根据SAC协议进行了实际的测试。

加拿大圣佛朗西斯大学论文代写:继电器测试

 Protective relays have to be tested based on SAC’s recommendations. Main reasons behind failure in electronic parts are power supplies, heat, under or over voltages, voltage transients, current surges, resonance, age, and moisture. Vibration could break or loosen can crack circuit boards, component casings, and insulation, resulting in equipment failure. Overheating could be triggered by voltage transients, high ambient temperature level or current surges. Moisture could lead to oxidation and corrosion of metallic elements that could lead to circuit discontinuities, short circuits and poor connections. Direct precautionary maintenance of protective relays toward eliminating the causes of failure, I listed here by the following approaches:
Test the supply voltage & the power supply result voltage.
Evaluate to observe that all links, contacts as well as leads are fixed and as liberated as workable from the effects of vibration.
Maintain the device dry and protected against rust and moisture.
Keep devices dirt-free by regularly blowing or vacuum cleaning dirt, dust, or any other pollutants. Dust might be removed using dry canned air. It is recommended that don’t use an air compressor or plant air because of moisture and contaminants.
Examine that there is enough ventilation to remove heat from the protective relay.
Running test switches needlessly might bring in harmful voltage transients. As an example, don’t draw printed circuit cards away from their racks to be evaluated in case there is no genuine necessity. Preventative approaches shouldn’t be used needlessly because this might add to automation failures (Blackburn, J. Lewis., 1998).
Testing Process
Documentation phase: This stage is also crucial as it keeps date of decision making. Thanks to the advance technology, as of now test systems offers custom-made report.
Planning stage: At this phase, as a testing engineer I have learned what test to be done and what type of evaluation data to be logged for future auditing and for decision making.
Running stage: Now, this is the actual time of carrying out the test. Here in this phase, I have to take care not to open a powerful circuit, in order that no extra voltages will be built and harm property and workers by running preliminary. Afterwards, the actual tests were done as according to the SAC protocols.