如图2 - 9所示，由于保护缓冲放大器具有典型值为104到106的开环增益，所以能够大大减少CSHUNT的充电时间。
As shown in Figure 2-9, the guard buffer significantly reduces the charging time of CSHUNT because of the open-loop gain (AGUARD), which is typically 104 to 106.
实验结果表明，动作时间及电流动作值精度在2%以内，保护装置运行稳定可靠。
Test results show that time duration and current operating value precision are less than 2%, and the functions of the protection device are reliable.
超过堵转电流保护值所持续的时间。
The duration when over the protection value of the blocking current.
分析了轨道交通直流牵引供电系统的直流设备电压型框架保护装置与轨道电位限制装置定值和时间配合存在的问题及解决办法。
It analyses the rail transit DC traction power supply system voltage type frame protect device and rail voltage limited device matching problems that solve their adjusting value and time.
此外，为了避免在甩负荷时转速形成明显的第二峰，电超速保护装置的推持时间宜取较小值。
Finally, for avoidance too large the second peak of the overspeed, to reduce the time constant of OP…
此外，为了避免在甩负荷时转速形成明显的第二峰，电超速保护装置的推持时间宜取较小值。
Finally, for avoidance too large the second peak of the overspeed, to reduce the time constant of OP…
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