零电压切换开关的可能性电阻器或电机。
Possibility of zero voltage switching to switch resistors or motors.
“最大信号电平”是指能够切换但又不会损坏开关卡的电压、电流和功率的最大值。
"Maximum signal levels" refers to the highest levels of voltage, current, and power that can be switched without damaging the switch card.
接触电势或热电效应偏移电压是设计用于低压切换的开关卡的关键技术指标。
The contact potential or thermoelectric offset voltage is the key specification of a switch card designed for low voltage switching.
在将一个电压源切换至多个装置时，则可能必须补偿由于开关电阻引起的压降。
When switching a voltage source to multiple devices, it may become necessary to compensate for voltage drops due to switch resistance.
安装进线刀开关、进线电流表、电压表(可切换)和进线电压指示灯。
Install incoming disconnect switch, incoming current meter, voltage meter (switchable) and incoming voltage indicator light.
除了切换高压（>100V）时需要高压开关卡外，通用开关通常足以切换电压源。
General-purpose switches are usually sufficient for switching the voltage source unless high voltages (>100V) are involved, in which case, high voltage switch cards are necessary.
在实际工程中，同期电压的取法采用的是“近区电压优先原则”，并使用相关的隔离开关和断路器的辅助触点来实现电压的切换。
In engineering application, the selection of the synchronism voltage is usually according to the principle that the nearest voltages are prior.
设计了一种新型模拟电压可切换无触点开关电路。
A new analog voltage contact-less switch circuit is designed.
开关卡的技术指标通常是由特定的应用决定的，例如小电流或高电压切换。
Switch card specifications are usually stated with a specific application in mind, such as low current or high voltage switching.
数字化变电站由于采用了电子互感器和智能开关，因此有必要研究新的电压切换方式。
Because of adopting electronics transformers and intelligence switches in digital substation, it is necessary to study a new method of voltage switching.
介绍了一种适用于户外电网远程监测监控的不间断高频开关电源，设计了一种简易可靠的110V/2 2 0V自动切换电路，以满足宽范围电压输入要求。
A novel high frequency switch power supply, which is suitable for power network outside, is introduced in this paper, and a automation switching circuit for 110V/220V input voltage has been designed.
介绍了一种适用于户外电网远程监测监控的不间断高频开关电源，设计了一种简易可靠的110V/2 2 0V自动切换电路，以满足宽范围电压输入要求。
A novel high frequency switch power supply, which is suitable for power network outside, is introduced in this paper, and a automation switching circuit for 110V/220V input voltage has been designed.
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