YouTube transcript (hPt1ZY2e-6E) — Transcript

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1. 0:00Hello, my wonderful students.
2. 0:03Good afternoon from where you're
3. 0:04watching. All right, we are going to be
4. 0:06talking about for under the installation
5. 0:08module, which is the 3.0. We're going to
6. 0:11be talking about SPD, surge protective
7. 0:14devices.
8. 0:15So,
9. 0:16let's quickly dive into it quickly.
10. 0:19So, in my hand here is a 6 to 9 way
11. 0:23protection complete device box.
12. 0:26This is what you're going to be use in
13. 0:28your installation
14. 0:30when adding to your installation for
15. 0:32protection.
16. 0:33Unless this is optional,
17. 0:35it's an it's an optional
18. 0:37part of the system. So, most customers
19. 0:40request for it, most doesn't.
20. 0:42So, this is the box. This is a new one.
21. 0:46So, now
22. 0:48this is a complete box. This is how it
23. 0:49looks like.
24. 0:51So, let me open this.
25. 0:53You see?
26. 0:54We have the complete unit here. So, let
27. 0:56me start explaining it one by one
28. 0:59quickly for you so that you know what
29. 1:00we're doing.
30. 1:01For us to remove this casing, we will
31. 1:02unscrew both of them and we can get
32. 1:04access to each of these. So, these are
33. 1:06breakers.
34. 1:10These are breakers.
35. 1:12Breakers are like switches that serves
36. 1:14as an intermediary between current flow.
37. 1:18Okay? They are also protection so that
38. 1:20when currents are not going the way it's
39. 1:22supposed to go, they react.
40. 1:24You know? You can attest from your
41. 1:26normal distribution board in your house.
42. 1:28When there's a bridge, it does what? It
43. 1:30cuts off automatically. So, let me start
44. 1:32explaining each of these things you are
45. 1:34seeing here.
46. 1:36The first one we have is DC breaker.
47. 1:40This is a DC breaker.
48. 1:44Okay? So, DC breaker is the first one
49. 1:46that you have. This is where your solar
50. 1:49panels will be connected to.
51. 1:52In the in the 9 way, because this is a 6
52. 1:55way Uh this is a 4 ways rather, this is
53. 1:57a four-way box. In the nine-way box, you
54. 1:59will have two of this. One, you're going
55. 2:02to be using it for the solar panel, and
56. 2:04the other one you're going to be using
57. 2:05it for battery. You know, both of these
58. 2:08collect DC current. So, they're going to
59. 2:10serve as switches for both of them. Now,
60. 2:12up to the second one, we have AVS.
61. 2:16The job of AVS is to regulate the
62. 2:18voltage. AVS means adjustable voltage
63. 2:21protector, so that the voltage that
64. 2:23comes in from grid. Remember we talked
65. 2:26about grid connection? The voltage that
66. 2:28comes in from utility to charge the
67. 2:30device can be regulated here. You can
68. 2:32see if there's an overvoltage, it's
69. 2:34going to step it down to protect the
70. 2:36system. So, that's it for here.
71. 2:39Next, we have our surge protective
72. 2:41device.
73. 2:42Surge protective device. This is the
74. 2:44SPD. This is responsible for
75. 2:47thunderstorm and lightning. This is for
76. 2:50the AC unit. The one for the nine-way,
77. 2:52you We're going to see another one for
78. 2:54the DC.
79. 2:56Okay? You're going to see the other one
80. 2:57for the DC. So, this is how you take to
81. 2:59know this VAC, that is voltage alternate
82. 3:02current. So, the one for solar, you'll
83. 3:04see VDC, that is voltage direct current.
84. 3:07So, its job is to protect the system
85. 3:09from thunderstorm. So, that's the job of
86. 3:12SPD.
87. 3:14Right here is AC breaker.
88. 3:18This is where the grid power comes in
89. 3:20for to charge the system. So, before it
90. 3:22goes into the system, it first of all
91. 3:24comes through these two pole, the
92. 3:25positive and the negative pole, and
93. 3:28comes out from under before going into
94. 3:30the inverter. That way it serves as a
95. 3:31switch. Whenever we want AC power to
96. 3:33power, all we have to do is
97. 3:35turn it on. You see? AC power start
98. 3:38charging. When we want to turn it off,
99. 3:41we turn it off. So, that is it for surge
100. 3:44protective device, guys. So, whenever
101. 3:46you see this, you know that it's used in
102. 3:50installing of high system when needed.
103. 3:53Unless the house has earthing, you don't
104. 3:55require this protection. But, it is also
105. 3:58advisable for homes that doesn't have
106. 4:00earthing to for it to be added in order
107. 4:03for the system to be protected.
108. 4:17So,
109. 4:18this is MPPT solar charge controller
110. 4:22sample.
111. 4:24This is a Must Company,
112. 4:28one of the top brands in Nigeria.
113. 4:31And this is rating.
114. 4:34Remember I talked to you about the
115. 4:35rating of each
116. 4:37system.
117. 4:39Every system has a rating, so that you
118. 4:41know how many volts goes into it. If you
119. 4:44check here, it's showing you what?
120. 4:46Maximum solar voltage that can enter
121. 4:48here is what? 145
122. 4:51volts. You know? It's saying minimum
123. 4:54voltage that can enter here is what? 100
124. 4:57volts. So, you see? So, that is it for
125. 5:01MPPT solar charge controller. I have I
126. 5:03explained these are the terminal ports.
127. 5:06This is for panel PV. Remember I told
128. 5:08you about PV? This is for panel
129. 5:11positive, negative. This is for battery
130. 5:13positive and negative.