作为一个电能质量专家, 谁你应该是接近专业
作为一个电能质量专家, 有正确的接触，以获得正确的信息，以指定一个有效的解决方案是非常重要的. 这里有几个你重要的联系人和问题清单，你可能要问.
Get in contact with your Customer process Suppliers
So you have to solve a Power Quality problem for a specific load, either a variable speed drive, soft start or a power controller. Refine your detective skills! Identify exactly where the compatibility issues is by getting the alarm information or a particular mis-operation. Is the drive tripping on low voltage, high voltage, frequency variation or the power controller does not produce constant power output.
Contact the company’s application engineer to discuss the mis-operations, chances are that this is not a new problem and there are out of the box solutions like a specific power controller for the customer’s application or a new trip settings for the motor drive or soft-start.
Know your Utility Engineer
Once you have determined the problem and the solutions, you need some information from the Utility Engineer.
For a problem concerning sags, swells or short interruptions, here is a list of questions you may want to ask:
- What is the protection philosophy and setting for the line supplying your customer?
- Is there a reclosure scheme, if so, ask what are the settings, this can make a big difference on your solution spec and cost?
- In case of a permanent fault on the utility side, how much time does it take to transfer to the back-up, is it automatic or manual?
For a flicker problem, you may want to know:
- What is the fault level at point of common coupling?
- Is it possible to rearrange the supply to get a higher short circuit level?
- 公共耦合点的推荐电平是多少?
对于谐波问题, 这是相关问题:
- 公共耦合点的谐波阻抗是多少?
- 同一馈线上是否有其他产生谐波的负载?
- 公共耦合点的推荐电平是多少?
与您的电能质量设备供应商联系
现在您已找到解决方案, 是时候分析它们了. 为什么不使用我的免费电子表格来比较并选择最佳的一个, 在这里获取.
一旦找到最佳解决方案, 是时候指定它了. 请联系电能质量设备供应商的应用工程师以获取典型规格并询问如何对其进行评级以及任何其他信息
请添加您的评论.
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