人民的Costco发电机减价，有一氧化碳检测关机功能。 4450/3550W 479.99 这个周末消费1000以上再减20%

[月下独酌]

又搜了一下，似乎是说a decade or so ago，ordinary portable generators　produced ”dirty”　electricity。但是现在新型的普通portable generators已经克服了这个问题。目前inverter generators的优势只剩下两个：
１.quieter
２.use less fuel

Portable Natural Gas Generators: How to Choose and Use Them　
Until a decade or so ago, ordinary portable generators produced electricity that was”dirty” enough to sometimes harm sensitive electronics such as computers, TVs and music equipment.

While inverter generators were being developed to overcome the problem of dirty power, generators were also being developed to produce clean power that could run all household items safely. That’s usually the case with generators today. So why do we still have inverter generators when clean power comes from ordinary generators? A couple of reasons. Inverter generators are quieter and use less fuel than a comparable generator, and this matters in situations like trailer parks, cottages, campgrounds or any place where the less noise the better.

Generator Buying Guide - Consumer Reports

Shopping for a generator? Read about types, features, safety, and other must-know topics in our generator buying guide to make an informed choice.

www.consumerreports.org

• Inverter generators are much quieter than their conventional counterparts because they throttle up and down to match demand rather than run at full power all the time. They have more sophisticated exhaust systems, which also help tamp down noise.

这三十年发电机都还是一个设计。。。一样还是用化油器
靠个小servo速度再快也没法很准确很快的保持3600rpm啊

大一点的engine（比方说400-500cc) 会好很多（惯性大）但是耗油啊

 

[BFB_GMAIL]

随便你啊，furnace报错的时候别跟我说我没提醒过你

差几百块钱的事情，坏个电器得亏多少钱

我刚才又读了consumer report的generator selection guide, 发现:
1、也说要invertor才能避免fry the electonics, like charging cell phone。那么目前我在网上搜到的只有一篇说 non invertor也可以clean electricity, 但另外好几篇都说不适合电脑等电子设备。
2、说如果要接furnace, 必须有transfer switch. 但transfer switch要求240v, 这个只在3500w以上的发电机才有, 小功率发电机只有120v, 不能接transfer switch, 也就不能带动furnace.

您为什么说furnace需要inverter呢？这算sensitive electonics吗？

如果是这样, 必须大功率inverter有240v才能带动furnace？很贵吧？

 

[月下独酌]

我刚才又读了consumer report的generator selection guide, 发现:
1、也说要invertor才能避免fry the electonics, like charging cell phone。那么目前我在网上搜到的只有一篇说 non invertor也可以clean electricity, 但另外好几篇都说不适合电脑等电子设备。
2、说如果要接furnace, 必须有transfer switch. 但transfer switch要求240v, 这个只在3500w以上的发电机才有, 小功率发电机只有120v, 不能接transfer switch, 也就不能带动furnace.

您为什么说furnace需要inverter呢？这算sensitive electonics吗？

如果是这样, 必须大功率inverter有240v才能带动furnace？很贵吧？

谁跟你说transfer switch必须240v
你去看看reliance transfer switch

high efficiency furnace百分百high sensitive
gas furnce也就是风扇600w

 

[BFB_GMAIL]

谁跟你说transfer switch必须240v

How to Choose the Right Size Generator - Consumer Reports

Get help calculating what size generator you need. Plus, advice on whether to pay more for an inverter model, or even invest in a whole-home generator.

www.consumerreports.org

Midsized Inverter
Up to 3,500 watts
$1,000–$1,700
Pros: It’s lightweight (most models weigh less than 150 pounds) and quiet. It’s also efficient, capable of keeping the fridge running and the lights on for 8 to 18 hours using only 2 to 3 gallons of gas.

Cons: It can generally power only 110-volt items with a standard two- or three-prong plug, ruling out well pumps, and heating and cooling equipment. You can now find special 110-volt transfer-switch kits, but the installation cost makes them an impractical choice because you could opt for a portable generator with a 220-volt transfer switch for the same amount.

 

[billwanhua]

我不觉得我这个seasonic 1000w platinum PSU值得去试试10+% THD

你如果觉得电脑娇气，普通inverter发电机也没有用，顶多电压稳点，如果想稳压不是inverter的可以用surge protector解决，很多廉价的inverter直流变交流也跟廉价的UPS一样，都是方波或者三角波。你买这个吧：

What is an Inverter Generator? | Honda Outdoors

A Honda inverter generator provides in most cases better than grid power as in NZ the fluctuation is allowed to be up to 10%.

www.hondapowerequipment.co.nz

Why does Honda do it better? Our inverter generators (see the portable range) provide 'pure sine wave' power. Other cheaper generators use 'square sine wave' or modified sine waves. The image (right) illustrates this.

The most inexpensive way to convert power from DC to AC is to switch the DC on and off, creating a square wave. These old-fashioned inverters are the cheapest to make, but produce the worst kind of power. They just flip the voltage from plus to minus creating a square waveform. Generators that produce square wave are also not very efficient because the square wave has a lot of power in the higher harmonic range that cannot be used by many appliances.

记住，廉价UPS也保护不了你，也是一样方波

 

[月下独酌]

你如果觉得电脑娇气，普通inverter发电机也没有用，顶多电压稳点，如果稳压不是inverter的可以用surge protector解决，很多廉价的inverter直流变交流也跟廉价的UPS一样，都是方波或者三角波。你买这个吧：

What is an Inverter Generator? | Honda Outdoors

A Honda inverter generator provides in most cases better than grid power as in NZ the fluctuation is allowed to be up to 10%.

www.hondapowerequipment.co.nz

Why does Honda do it better? Our inverter generators (see the portable range) provide 'pure sine wave' power. Other cheaper generators use 'square sine wave' or modified sine waves. The image (right) illustrates this.

The most inexpensive way to convert power from DC to AC is to switch the DC on and off, creating a square wave. These old-fashioned inverters are the cheapest to make, but produce the worst kind of power. They just flip the voltage from plus to minus creating a square waveform. Generators that produce square wave are also not very efficient because the square wave has a lot of power in the higher harmonic range that cannot be used by many appliances.

记住，廉价UPS也保护不了你，也是一样方波

surge protector... lol

 

[月下独酌]

How to Choose the Right Size Generator - Consumer Reports

Get help calculating what size generator you need. Plus, advice on whether to pay more for an inverter model, or even invest in a whole-home generator.

www.consumerreports.org

Midsized Inverter
Up to 3,500 watts
$1,000–$1,700
Pros: It’s lightweight (most models weigh less than 150 pounds) and quiet. It’s also efficient, capable of keeping the fridge running and the lights on for 8 to 18 hours using only 2 to 3 gallons of gas.

Cons: It can generally power only 110-volt items with a standard two- or three-prong plug, ruling out well pumps, and heating and cooling equipment. You can now find special 110-volt transfer-switch kits, but the installation cost makes them an impractical choice because you could opt for a portable generator with a 220-volt transfer switch for the same amount.

diy

 

[billwanhua]

要搞清原理，为什么要用inverter，不能人云亦云，不分档次，非要说inverter好

Page not found – JP Electrical

jpelectric.com

 

[billwanhua]

surge protector... lol

How To Make A Generator Safe For Electronics

Plugging in your iPhone into a any generator isn't the best idea. So here’s what you need to know on how to make a generator safe for electronics.

thetoolscout.com

不是我原创的。

Can You Make a Conventional Generator Safe for Electronics?​

Yes, there are a number of devices you can use to protect your electronics from the power ebbs and surges of a conventional generator. Here are the best options.

Use a Surge Protector​

Add a Surge Arrester​

Use an Uninterruptible Power Supply​

How to Make a Generator Safe for Electronics?

Learning how to make your generator safe for electronics is essential to keep your sensitive electronics protected from unstable electricity.

www.generatormag.com

 

[月下独酌]

How To Make A Generator Safe For Electronics

Plugging in your iPhone into a any generator isn't the best idea. So here’s what you need to know on how to make a generator safe for electronics.

thetoolscout.com

不是我原创的。

Can You Make a Conventional Generator Safe for Electronics?​

Yes, there are a number of devices you can use to protect your electronics from the power ebbs and surges of a conventional generator. Here are the best options.

Use a Surge Protector​

Add a Surge Arrester​

Use an Uninterruptible Power Supply​

How to Make a Generator Safe for Electronics?

Learning how to make your generator safe for electronics is essential to keep your sensitive electronics protected from unstable electricity.

www.generatormag.com

6. Use an Inverter Generator​

Indeed, inverter generators are far superior to non-inverter generators. While a regular generator directly feeds the generated AC power to the power panel and the connected small appliances. An inverter generator turns AC to DC and then to AC again. The final result is clean AC power with minimal harmonic distortion, similar to the electricity you get from a wall outlet.

Inverter generators are a bit pricier but worth it when compared to the price you’d pay for a conventional generator damaging all your electronics. We have a dedicated article that explains the difference between inverters and generators. It explains all the details about how they work and what makes an inverter generator more suitable for electronic devices.

If you already have a portable generator, you can consider getting a power inverter separately and installing it to your conventional generator. You can also opt for a solar generator for your home or RV since they supply pure sine wave energy, suitable for powering electronics.

 

[billwanhua]

6. Use an Inverter Generator​

Indeed, inverter generators are far superior to non-inverter generators. While a regular generator directly feeds the generated AC power to the power panel and the connected small appliances. An inverter generator turns AC to DC and then to AC again. The final result is clean AC power with minimal harmonic distortion, similar to the electricity you get from a wall outlet.

Inverter generators are a bit pricier but worth it when compared to the price you’d pay for a conventional generator damaging all your electronics. We have a dedicated article that explains the difference between inverters and generators. It explains all the details about how they work and what makes an inverter generator more suitable for electronic devices.

If you already have a portable generator, you can consider getting a power inverter separately and installing it to your conventional generator. You can also opt for a solar generator for your home or RV since they supply pure sine wave energy, suitable for powering electronics.

关键是 Surge Protector可以解决，特别是人家已经买了的普通发动机，你难道非让人再买一个？还有你说的tri fuel没有inverter,怎么办呢？我要买就买能带natural gas的
Amazon product ASIN B00D7KP8S4
$30搞定

 

[月下独酌]

关键是 Surge Protector可以解决，特别是人家已经买了的普通发动机，你难道非让人再买一个？还有你说的tri fuel没有inverter,怎么办呢？我要买就买能带natural gas的
Amazon product ASIN B00D7KP8S4
$30搞定

爱买啥买啥，surge protector能顶inverter也是牛逼了。。。
orz服了

 

[billwanhua]

爱买啥买啥，surge protector能顶inverter也是牛逼了。。。
orz服了

几个网站都说了，又不是我发明创造的。
基本原理就是普通发电机输出电压不稳，电机转速不能保持恒定3600转，特别是产生surge，原理在那里，你说不能用，也要搞个所以然，问问为什么不能用吧，为什么inverter可以用？

 

[月下独酌]

几个网站都说了，又不是我发明创造的。
基本原理就是普通发电机输出电压不稳，电机转速不能保持恒定3600转，特别是产生surge，原理在那里，你说不能用，也要搞个所以然，问问为什么不能用吧，为什么inverter可以用？

surge protector 那点surge跟generator的 10% THD
根本不是一个级别，你觉得网站说得对就对呗

 

[billwanhua]

10% THD

你再查查10%thd 是什么意思。
那个应该是跟你的PSU 整压以后的直流输出有关，而跟交流输入没有任何关系。

输入电压有问题无非两个方面，电压波动或者波形不对，波动特别是高压可以用surge protector保护，波形不对，Honda已经说了，很多廉价inverter波形也有问题