5.客户特殊需求  Requirements from Customer

  电网供应商要求：

  (1) 监控电压：L1-N、L2-N、L3-N。非标称 = 230V

  (2) 过压时切换继电器输出。分为两步，

  第 1 步：110% 非标称或 253V - 延迟 60 秒（s）；

  第2步，115% 的非标称或 264V - 延迟 0.1s；设置范围： U：非标称的 100-140%，未列出步骤，可能是 1V 或 1%；延迟0.05s 到 60s，未列出步骤，可能 1s；

  (3) 欠压时切换继电器输出：

  第1步；非标称电压或 184V 的 80% - 延迟 0.2s；设置范围： U：非标称电压的 10-100%，未列出步骤，可能是 1V 或 1%；延迟0.05 s 到 3s，步骤未列出，可能为 1s；

  (4) 过频时切换继电器输出：

  第1步； 50.5Hz——延迟0.1s；设置范围：F：50-52.5Hz，step 0.1Hz；延迟

  (5) 超频时切换继电器输出

  (6) 恢复延迟。由于先前的一些原因，当DO打开时，在网格参数回到标称范围后应该有时间延迟。时间范围1-60秒，step 1秒

  (7) 附加设置。(如果可能的话)。

  7.1.当非标称值低于60-70% 时，可禁用低频和超频监测;

  7.2. 当发生超频/低频时 -- DO不应该自动恢复，它应该等待手动/远程等方式恢复。

  terms of reference from grid supplier:

  （1）monitoring voltages: L1-N, L2-N, L3-N. Unominal = 230V;

  （2）switching relay output at overvoltage: 2 steps:

  Step 1: 110% of Unominal or 253V - delay 60 seconds (s) ;

  Step 2: 115% of Unominal or 264V - delay 0.1s;

  （3）switching relay output at undervoltage:

  1-step; 80% of Unominal or 184V - delay 0.2s; Range of settings: U: 10-100% of Unominal, step not listed, maybe 1V ot 1%; Delay: 0.05 s to 3s, step - not listed, maybe 1s;

  （4）switching relay output at overfrequency

  1-step; 50.5Hz - delay 0.1s; Range of settings: F: 50-52.5Hz, step 0.1Hz; Delay: 0.1-0.5s, step - maybe 0.1s;

  （5）switching relay output at overfrequency

  1- step; 47.5Hz - delay 0.1s; Range of settings: F: 47.5-50Hz, step 0.1Hz; Delay: 0.1-0.5s, step - maybe 0.1s;

  （6）Delay for recovering. When DO is on by some of previous reasons, there should be time delay after grid parameter(s) are back in nominal range(s). Time range 1-60s, step 1s

  （7）Additional settings. (If they are possible).

  7.1 When Unominal is lower than 60-70%, under and overfrequency monitoring can be disabled

  7.2 When overfrequency/underfrequency is happened - the DO should not be recovered automatically, it should wait for some kind of manual/remote restore.

  上述7点为客户对所采购产品的特殊需求，除第七点中部分要求不能满足客户外，其余需求都能满足。基本完好解决了客户的需求。

  The above 7 items are the special needs of customers for the purchased products. Except that some requirements in point 7 cannot meet the needs of customers, other needs can be met. Basically solved the needs of customers.

  6.安装图片Installation Picture