frequency relay的例句大全

Circuit design of SZ digital power frequency relay

SZ型数字式周波继电器电路设计

But the connection of wind power makes the districts show a typical character of week feed system which forms a great test for system relay protection especially in high frequency protection of which one line can falsely trip two times.

但风电的接入使得该地区电网呈现出典型的弱馈系统特点，这使得系统继电保护面临很大的考验，尤其作为高频保护，现场曾发生过同一条线路两次误动的现象。

A first-order plus dead-time model is identified on the basis of relay feedback experiments. Nyquist curve is very close to that of large dead-time processes over a wide frequency range.

基于继电反馈试验，辨识出一阶加纯滞后模型，其Nyquist曲线在一个大的频率范围内接近于大滞后过程。

The experience is useful for system short of frequency channel and needs relay station.

对于无线频点资源有限和需要中继站的负控系统有一定的现实意义。

Parameter Analysis for the Radio Frequency Direct Amplification Relay System of Weak Field

弱电场射频直放中继系统参数分析

Reduce the traditional relay mechanical contact point control method for fixing shortcomings, which greatly improves the system flexibility, reliability. ( 2) Of the main mine fan speed adjustment using the most advanced frequency control scheme.

减少了传统继电器机械接触点多、控制方法固定等缺点，极大的提高了系统的灵活性、可靠性。（2）矿井主通风机的风速调节主要采用了目前最先进的变频调速方案。

The board can be inserted into the computer's bus slot. The system can test the state of the relay's contact according to the fixed sample frequency and calculate the relay' time parameter ( act time, bounce time and release time).

系统按照固定的采样频率检测继电器动作与释放时各个触点的状态，计算得出继电器的时间参数（动作时间、动作回跳时间、释放时间，释放回跳时间、动作同步时间差和释放同步时间差）。

Research on steady-state overreach of power frequency variation distance relay

工频突变量距离继电器稳态超越的研究

frequency sharing criteria between line-of-sight radio-relay systems and space radiocommunication systems

视距微波接力通信系统与空间无线电通信系统共用频率的技术要求

a new frequency domain identification algorithm based on biased relay feedback

基于偏置继电反馈的一种新的频域辨识方法

the problems of attenuation and disagreement of high frequency protection signal for the branch line and the operation mode of relay protection for high voltage line with branch of large size generator transformer unit etc are discussed.

介绍了如何解决分支线路高频信号介入衰耗和差拍、大型发电机组支接于高压线路的继电保护运行方式等问题；

influence of transient process of cvt on incremental power frequency distance relay

CVT暂态特性对工频变化量距离保护的影响

Purpose: Voltage regulator , DC-DC converter and relay driver audio frequency power Amplifier.

用途: 用于电压调节器,电源转换器和继电器驱动及音频放大输出等线路.

The analysis and calculation on system frequency changing, oscillating and symmetrical fault offers reference for choosing arithmetic of digital negative sequence unbalance output in relay protection.

分析计算这2种方法在系统频率变化和振荡以及三相故障时的负序不平衡输出，为数字式负序滤过器的算法选择和继电保护中负序不平衡量的定值整定提供依据。

The network can transmit one bidirectional relay voice or two bidirectional direct voices, and data packets transmission supports both unicast and broadcast with automatic routing. Secondly, the TDMA networking protocol is implemented on the VHF frequency hopping radio.

该协议支持最多32个节点组网，可实现一路中继双向话音或两路直达双向话音，支持单播及广播数据报文和自动路由。2.在超短波跳频电台上实现了该TDMA组网协议。

Several typical problems existing in site test of relay protection are pointed out, such as test with load, channel test of high frequency protection, remote trip function test of optical protection.

针对现场试验中带负荷检查存在的问题、高频保护中通道问题、光纤保护中远跳功能应注意的问题等，指出应特别关注的问题。

A new frequency domain identification algorithm for SISO system with time delay is proposed based on biased relay feedback.

提出一种新的基于偏置继电反馈的频域辨识算法，能够对包括迟延在内的SISO系统的传递函数参数进行在线辨识。