In fact, single phase power can sometimes produce higher levels of harmonics than three phase power.
电路设计须考虑整体功率的大小、三相电要求、特殊仪器稳定性的要求。
The circuit design must consider the size of the overall power, the three-phase electrical requirements, and the requirements of special instrument stability.
先接通电源,此时三盏电源指示灯全部都会亮,证明三相电源已经到配电箱。
Turn on the power first, then all three power indicators will be on, proving that the three-phase power has arrived at the distribution box.
分配电箱应安装在用电设备几种或是负荷相对集中的地带,从而确保三相负荷保持平衡。
Distribution box should be installed in electrical equipment or the load is relatively concentrated in the heart, to ensure that the three-phase load balance.
在这些应用领域中的电气系统通常包括两级逆变器,三相电机和相应的能源供给。
The electrical system in these fields of application normally consists of a two-level inverter, a three-phase electrical machine and the corresponding energy supply.
三相是单独测量,允许三相不一样,因此一相功率增加了,不会影响另外两相。
Three phases are measured separately, allowing three phases to be different, so the power of one phase increases without affecting the other two phases..
三相异步电动机的功率一般应为生产机械功率的1.1~1.5倍。
The power of the three-phase asynchronous motor should generally be 1.1 to 1.5 times the production mechanical power.
为了保护三相网络,最好选择一套RCD+自动。
To protect a three-phase network, it is better to choose a set of RCD+ automatic.
三相四线制照明电路还应做好三相负荷的平衡配置。
The three-phase four-wire lighting circuit should also be balanced with three-phase load.
如果您使用的是三相网络,则需要使用四线电缆。
If you are using a three-phase network, then you need a four-wire cable.
例如,为了保护三相电饭煲(3.5千瓦),您需要一个以下方法:.
For example, to protect a three-phase electric cooker(3.5 kW), you need a difavtomat to.
且供电网络负荷应均匀,电压波动在±5%内,三相电压不平衡允许在±1%。
And the power supply network load should be uniform, the voltage fluctuation is within±5%, and the three-phase voltage imbalance is allowed to be±1%.
图1所示为带有隔离式分流传感器的三相系统的功能组件。
Figure 1 shows the functional components of a three-phase system with isolated shunt sensors.
许多其它汽车子系统也非常适合48V架构,无论是单相还是三相配置。
Many other vehicle sub-systems are also ideally suited to the 48V architectures for both single and three-phase configurations.
相间90度的两相电源可以使用Scott连接的变压器从三相系统中获得。
A two-phase supply with 90 degrees between phases can be derived from a three-phase system using a Scott-connected transformer.
简单来讲,双相就是一火一零线,三相四线是三火一零线。
In simple terms, the two-phase is a fire-zero line, and the three-phase four-wire is a three-fire-zero line.
在该应用环境下,典型的变频器结构是三相二级电压源变频器。
In such conditions, the most typical VFD structure is a three-phase two level source variable frequency drive.
当前我国现行的低压公用配电网络,通常采用的是TT或TN-C系统,实行单相、三相混合供电方式。
At present, China's current low-voltage public power distribution network usually adopts TT or TN-C system, and implements single-phase and three-phase hybrid power supply modes.
在向低压用户供电时,我们的供电系统一般采用三相四线制。
When supplying power to a low-voltage user, the power supply system generally adopts a three-phase four-wire system.
Be it Control, Isolation, Three-phase, Rectifier, Auto or Special Purpose Transformer, we have quality tested and safety parameters passed solutions to keep our customers satisfied.
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