因为按目前的负荷水平来说，一般的城市都有几千台配电变压器和箱式变压器。
Because according to the current load level a city has generally thousands of distribution transformer and box transformer.
认为谐波源来自系统侧，除了非线性负荷外，主要是由大型电力变压器激磁电流所造成。
The harmonic comes from power system side, which is caused mainly by exciting current of the large capacity transformer besides the nonlinear loads.
变电站包括各类设备：变压器、断路器、负荷开关、母线、电流互感器、电压互感器等。
Transformer substation including each kind of equipment: transformer, circuit breaker, load switch, generatrix, current transformer, voltage transformer and so on.
此外，要实现变压器并联运行时的恰当负荷分配，阻抗值是重要的。收藏。
In addition, impedance is important to achieve a proper load division in the parallel operation of transformers.
此外，随着大型变电站的负荷增长，变压器的容量也必须增加。
Furthermore, as the load on a large substation grows, transformer capacity has to BE added.
然而在配电等级，联络开关用来开合同一变电站中不同变压器上的馈线或馈线段，或切换到邻近变电站以进行变电站变压器的负荷管理。
However, at the distribution level, 'tie switches are used to switch feeders or feeder sections between transformers in the same station, or to adjacent substations for substation transformer load.
介绍了励磁变压器因二次侧负荷不平衡引起振动异音及铁心温度异常升高故障的原因分析及处理。
Analysis and treatment of the faults of vibration unusual sound and core temperature abnormal rise in exciting transformer, caused by the unbalance of the secondary side load, are introduced.
本文以系统负荷预测结果为前提，针对变压器经济运行优化调度问题展开研究。
In the premise of load forecast results of power system, the paper carries out research on optimizing dispatch for transformer's operation.
介绍了一种微机双绕组变压器负荷经济运行控制系统的基本工作原理、硬件结构框图和主要技术特点。
The basic working principle, hardware structure and main technical features of a micro computer based control system for transformer economic operation is presented in this paper.
变压器控制班级负荷秩序会改善的一般性的动态转化，但不会解决这个问题。
Transformer control over the class load order would improve the generality of dynamic transformation but would not solve the problem.
机组可在断路器或负荷开关打开时，采用发电机升压变压器作为一种非本电厂电源来起动。
The unit can be started with the breaker or switch opened using the generator step-up transformer as a source of off-site power.
研究结果表明牵引冲击性负荷对变压器绝缘寿命损失影响很大，不容忽视。
Test results show that the traction loads seriously affect insulation aging and loss-of-life of the traction transformer, which should by no means be overlooked.
城市电网的最大供电能力是指在城市电网任意支路(线路、变压器)无过负荷条件下所能供应的最大负荷。
The load supplying capability (LSC) of urban distribution network is the maximum load which can be supplied by the network without any branch (line and transformer included) exceeding its capacity.
变压器出现后，许多负荷由交流供电而不用直流供电。
After the Advent of transformers, much of the load was served by alternating current instead of direct current.
阐述了现阶段住宅小区计算负荷的确定，介绍了小区变压器容量的选取。
This paper discusses the determination of calculation load in residential districts at present, and introduces the choice of capacity of voltage transformer in the districts as well.
本文针对负荷特性和有载调压变压器对电力系统静态电压稳定性的影响展开研究。
This thesis carries out studies aiming at the impact of load characteristics and on load tap changer on voltage stability.
自然油循环的冷却方式不仅广泛应用于电力网中的中小型电力变压器，也会在在大型电力变压器低负荷和低环境温度时应用。
The cooling method of nature oil circulation is not only widely used in small-middle type power transformer, but also used in large type power transformer with low load and low ambient temperature.
该方法基于相分量模型，除对变压器和线路采用详细模型外，还能够考虑多项式负荷。
The method based on phase component models can simulate polynomial loads besides modeling transformers and lines in details.
变电站通过电容器组完成无功补偿后，负荷曲线发生变化导致变压器所在的经济运行区间变化，故应针对变化了的负荷重新计算投切策略。
The reactive compensation by capacitor banks for substations tends to make the load curve change, which may result in shifting of the economic operation range of the transformer.
电力自耦变压器在其输入电流均小于额定值时，其公共绕组也可能过负荷。
When electric power coupling transformer at input current is less than rated value, public winding can be also overload.
电力自耦变压器在其输入电流均小于额定值时，其公共绕组也可能过负荷。
Whem electric power coupling transformer at input current is less than rated value, public winding can be also overloaded.
在评价牵引变压器的过负荷能力时，所选择的典型负荷曲线必须合理，使之能够正确反映线路的牵引变压器运行状况。
The typical load curve which is selected for evaluating the overload ability of traction transformer must be reasonable, it should reflect accurately the operation status of traction transformer.
由于许多变压器并不带持续负荷，这就可利用发热时间的滞后来带上更高的峰值负荷而不至于超出温升的限定值。
Since many transformers do not carry continuous loads, advantage can be gained from the thermal time lag to carry higher peak loads without exceeding the temperature limits.
变压器可以在正常过负荷和事故过负荷的情况下运行。
The transformer is able to operate under the conditions of normal overload and accident overload.
用于分合负荷电流，闭环电流，空载变压器和电缆充电电流，关合短路电流。
Used for points and load current, closed loop current, no-load transformer and cable charging electric current, close short circuit current.
用于分合负荷电流、闭环电流、空载变压器和电缆充电电流。
Used for points and load current, closed loop current, no-load transformer and cable charging electric current.
提高功率因数，降低输入电流，减轻了变压器的负荷并提高了效率，增大了变压器的容量。
Electric saver can improve the power factor, reducing input current, lighting the transformer's load, and increasing efficiency and transformer's volume.
因此，通过研究牵引负荷得到建立牵引变压器典型负荷曲线的方法具有重要的意义。
So the method of making the typical load curve of traction transformer is great significant.
因此，通过研究牵引负荷得到建立牵引变压器典型负荷曲线的方法具有重要的意义。
So the method of making the typical load curve of traction transformer is great significant.
应用推荐