- 737
- 13
- 18
- Location
- Bothell, WA
Recently picked up a MEP-803a. One reason that I decided to get this was to solve an annoying problem, one of our UPS units refused power from our gas generator. (A Brigs & Stratton unit.)
So part of inspecting the MEP was making sure it looked like it would solve that problem. So out comes the cheap scope.
As a baseline, Snohomish County PUD #1 utility power:
![utility.jpg utility.jpg](https://www.steelsoldiers.com/data/attachments/420/420658-64faf1db48c6cc12ed091b737e3a0457.jpg)
The B&S unloaded:
![Generator_Unloaded.jpg Generator_Unloaded.jpg](https://www.steelsoldiers.com/data/attachments/420/420659-a9bca68a3d64080080a789d88a8b8ae0.jpg)
Shaky, but still decent.
And with a 3KW load:
![Generator_loaded.jpg Generator_loaded.jpg](https://www.steelsoldiers.com/data/attachments/420/420660-6b56dc59c2bdfe98465139a3cfc9b15f.jpg)
Well, that's not pretty. Need to see how balanced that load is.
The MEP-803 unloaded:
![MEP_Unloaded.jpg MEP_Unloaded.jpg](https://www.steelsoldiers.com/data/attachments/420/420661-f3b8c56a22146f454b1ac41b9358130b.jpg)
MEP-803a w/ 12KW load:
![MEP_Loaded.jpg MEP_Loaded.jpg](https://www.steelsoldiers.com/data/attachments/420/420662-70f7c49a05da12453516fda27040f35d.jpg)
Well, that's a lot better.
So, the sine wave is pretty decent.
Oh, some other random ones...
An APC BRG1500 UPS:
![BRG_UPS.jpg BRG_UPS.jpg](https://www.steelsoldiers.com/data/attachments/420/420663-27af15879c3c51411ab4146fbe8ac84e.jpg)
And a Smart-UPS 1500:
![Smart-UPS.jpg Smart-UPS.jpg](https://www.steelsoldiers.com/data/attachments/420/420664-3d4f49f870fdacdcd4367d9cedfbe646.jpg)
So part of inspecting the MEP was making sure it looked like it would solve that problem. So out comes the cheap scope.
As a baseline, Snohomish County PUD #1 utility power:
![utility.jpg utility.jpg](https://www.steelsoldiers.com/data/attachments/420/420658-64faf1db48c6cc12ed091b737e3a0457.jpg)
The B&S unloaded:
![Generator_Unloaded.jpg Generator_Unloaded.jpg](https://www.steelsoldiers.com/data/attachments/420/420659-a9bca68a3d64080080a789d88a8b8ae0.jpg)
Shaky, but still decent.
And with a 3KW load:
![Generator_loaded.jpg Generator_loaded.jpg](https://www.steelsoldiers.com/data/attachments/420/420660-6b56dc59c2bdfe98465139a3cfc9b15f.jpg)
Well, that's not pretty. Need to see how balanced that load is.
The MEP-803 unloaded:
![MEP_Unloaded.jpg MEP_Unloaded.jpg](https://www.steelsoldiers.com/data/attachments/420/420661-f3b8c56a22146f454b1ac41b9358130b.jpg)
MEP-803a w/ 12KW load:
![MEP_Loaded.jpg MEP_Loaded.jpg](https://www.steelsoldiers.com/data/attachments/420/420662-70f7c49a05da12453516fda27040f35d.jpg)
Well, that's a lot better.
So, the sine wave is pretty decent.
Oh, some other random ones...
An APC BRG1500 UPS:
![BRG_UPS.jpg BRG_UPS.jpg](https://www.steelsoldiers.com/data/attachments/420/420663-27af15879c3c51411ab4146fbe8ac84e.jpg)
And a Smart-UPS 1500:
![Smart-UPS.jpg Smart-UPS.jpg](https://www.steelsoldiers.com/data/attachments/420/420664-3d4f49f870fdacdcd4367d9cedfbe646.jpg)