- Trump BANS WeChat & TikTok - on Sept 13 - 4 Updates
- cell (mobile) phone detector - 1 Update
- Solid state relay questions - 2 Updates
| bruce2bowser@gmail.com: Aug 08 05:56PM -0700 Trump issues orders banning TikTok and WeChat from operating in 45 days if they are not sold by Chinese parent ... CNN - 2 days ago -- https://www.cnn.com/2020/08/06/politics/trump-executive-order-tiktok/index.html |
| Rob <nomail@example.com>: Aug 09 07:53AM > Trump issues orders banning TikTok and WeChat from operating in 45 days if they are not sold by Chinese parent ... And what electronics are now to be repaired? His pacemaker? |
| Sjouke Burry <burrynulnulfour@ppllaanneett.nnll>: Aug 09 12:12PM +0200 On 09.08.20 9:53, Rob wrote: >> Trump issues orders banning TikTok and WeChat from operating in 45 days if they are not sold by Chinese parent ... > And what electronics are now to be repaired? > His pacemaker? Might he have a chinese pacemaker? Nahh, that wistfull thinking. :) |
| Allodoxaphobia <trepidation@example.net>: Aug 09 03:48PM On Sun, 09 Aug 2020 12:12:53 +0200, Sjouke Burry wrote: >> His pacemaker? > Might he have a chinese pacemaker? > Nahh, that wistfull thinking. :) LOL! "Wistful", indeed! |
| fynnashba@gmail.com: Aug 09 07:06AM -0700 Please is there any gadget/circuit/App that can detect a mobile phone when ; 1. even when the phone is off but the battery is inside. 2. When the phone is on 3. when the battery has been removed thank you. |
| etpm@whidbey.com: Aug 08 12:40PM -0700 My water comes from a well. When the well was drilled I had only built my shop and so the well is now powered by my shop. The pressure tank and switch is also at the shop. Now that the house is built I need to power the well from the house. This is fine but I am not gonna move the pressure tank and the pump switch must be at the tank for proper operation. The problem I must address is how to use the switch at the tank while using power from the house. I cannot run power from the house to the tank and then to the well pump because the voltage drop would be too great due to the much longer run of wire. My plan is to instead use the existing wires coming from the shop and going to the well to just carry switching power, not pump power. I want to use a couple solid state relays, one for each leg of the 240 power, to switch the power to the well. There is plenty of room to mount two solid state relays inside the well junction box. And I found AC controlled solid state relays that use 80 to 280 volts AC for control and will switch up to 480 volts AC at 25 amps. My well pump is a 2 HP pump that draws less than 10 amps. It is a capacitor start type pump so it draws less current at start up than a non-capacitor type pump. So, my questions: Are solid state relays suitable for this type of work? Are they typically able to handle surge current loads from motor starting? Here is a link to the relay in question: https://www.mpja.com/download/33984-86RLData.pdf Thanks, Eric |
| Phil Allison <pallison49@gmail.com>: Aug 08 06:42PM -0700 et...@whidbey.com wrote: ======================== > work? Are they typically able to handle surge current loads from motor > starting? Here is a link to the relay in question: > https://www.mpja.com/download/33984-86RLData.pdf ** That is a no brand, triac based SSR. Nice and cheap - right ? Triacs cannot take over current surges that last more than a cycle or two. Why use 2 in series ? I can only see that causing problems. .... Phil |
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