Spark Lab
Region: SA
Sunday 15 March 2026 10:57:37 GMT
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Oran-med :
there is one device can do this 😁
2026-03-15 19:44:16
6
JoeyVoltek_Joseph :
But those intermediate relays are 24VDC But I see you're giving them 230VAC
2026-03-15 12:10:50
7
Bahrudeen :
what if L1 L2 give R phase and L3 give B phase. how this setup will protect the motor
2026-05-20 08:52:06
0
Haron Korir :
perfectly explained,thank you so much
2026-05-29 05:45:15
1
rcwblockchain :
Why not use ct's on each phase
2026-03-17 05:37:42
0
Phoenix :
Just get a terminal protector
2026-04-04 21:57:13
1
nicolas cedric Narai :
why not use either 3~ phase failure. or what is used every time an overload😅 protect from phase missing overload and short circuit
2026-03-29 04:45:11
1
🅾️Ⓜ️🅰️®️⚙️ :
Thats a good idea for when you want to save some $$$ and not buy an ac drive
2026-04-01 03:01:06
2
@stevecom EEngineering service :
a phase sequence relay would solve this, thanksfor giving an educative option😊
2026-03-29 10:30:10
0
Andre :
Also Two relays can work ! With two phases have their relays and that extra phase will supply Contactor through these relays NO
2026-03-15 17:29:56
4
bnb :
phase monitor???
2026-05-14 02:13:32
0
68camaro68 :
Looks like he’s running a single face motor if he size the coil to the voltage you’re running the motor most likely two away 230 single phase. If you lose either phase, it does not work.
2026-03-15 18:37:51
1
tălâmbu mircea :
How You can conect The Neutral yo L1 of the contactor? This is bullshit
2026-03-16 06:37:27
0
Mr. T :
Or just use an actual phase fail relay🤷🏻♂️
2026-03-20 08:17:18
2
Mg Nu :
much better device for this. XJ3-D from chint which can monitor over and under voltage of the input as well. your system works if one phase lost but what if one phase is around 100v instead of 220v, then yours will have problem
2026-03-19 01:16:57
0
Kamrul hasan mintu :
this is old system
2026-03-15 16:22:15
1
eframgmichael :
Nice
2026-03-15 13:29:39
0
serioga_sng :
Откуда взять высоковольтные питания 380в(3 фазы) для Магнитного пускателя? Также из Автомата или можно взять с 14-го ножка релейка?
2026-03-15 11:47:31
1
Jako_Draco :
show the circuit drawing please
2026-03-16 04:48:19
0
zedy :
hi
2026-03-16 20:32:58
0
user4241306698777 :
.
2026-03-29 05:19:44
0
king so cr7 :
👍👍👍
2026-03-21 02:02:53
0
melodytopsallelectricals :
❤️❤️❤️
2026-03-19 19:34:52
0
johnndungu718 :
😳😳😳
2026-03-18 20:35:30
0
erick :
🥰🥰🥰
2026-03-15 11:08:09
0
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