CIRCUTOR CDP-0 - Manual (Page 32)

CDP
32 Instruction Manual
• Disconnection condition:
𝑷𝑷𝑷𝑷𝑷
∑ 𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷 𝑷𝑷𝒓𝒓𝒓𝒓 < 𝑀𝒓𝒂. 𝑷𝑷𝑷𝑷 𝑷𝑷𝑷𝑷𝑷𝑷𝒐𝒐𝑷𝑷𝑷𝑷
(
0
8000
= 0%)  0% ≤ 50% 
this condition is met
 relay 2 stays connected
At this point, the CDP-G will check whether it can connect the third load. To do
so, it must verify whether the connection condition is met:
• Condition 1:
𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃
𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃 𝑃𝑃𝑖𝑃𝑖𝑖𝑃𝑖
𝑥 100 ≤ 𝑀𝑚𝑥. 𝑃𝑃𝑃𝑃𝑚𝑚𝑖𝑚𝑃𝑃 𝑖𝑚𝑚𝑃𝑃
(
8000
10000
𝑥 100 = 80%)  80% ≤ 90%  this condition is met
• Condition 2:
-If Injection Margin = 0%
 It checks whether:
Pgrid < 2 x (0.03) x Pconsumed
-If Injection Margin
≠ 0%  It checks whether:
Pgrid < 2 x Injection Margin x Pconsumed
0 < 2 x 0.03 x 8000
 this condition is met
If the 2 conditions are met, the relay closes and connects load number 3.
(Figure 29)