Power supply voltage is higher than the rated voltage transformer, the transformer itself and its load will have adverse consequences

If the supply voltage is higher than the rated voltage of the transformer, the transformer itself and its load will have adverse consequences. Typically, the transformer  electri cenergy meter  at rated voltage, the magnetic flux density in the core close to saturation. If the supply voltage is higher than the rated voltage, the excitation current will rapidly increase, the power factor decreases. In addition, the voltage is too high and may burn out the transformer windings. When the power supply voltage 105 exceeds the rated voltage, the waveform of the potential  power transformers  large distortion occurs, it contains more high-order harmonic component, the maximum potential will increase, causing damage to the winding insulation. On the other hand, the supply voltage is too high, the output voltage of the transformer will increase accordingly, which will not only lead to electrical equipment overload, over-voltage, but also reduce the life of electrical equipment, even when serious breakdown of insulation, burn bad equipment.

There are so many pebbles under the transformer resolved

Prevent oil spills, but also fire riot. Seepage of oil can go on, as if the provisions of the ministerial standards, a large oil-immersed transformers shall be provided with the lower oil reservoir, an area   Electric transformer  than the plane occupied by the transformer, the depth of about 1M, laying 10CM diameter around the cobbled   air circuit breaker  is to absorb the transformer oil. But let not the oil can absorb the oil leak continues, the transformer is a slope below the lowest point has a grille, through tubing connected to the incident under the tank. Let go of the oil flow to the accident on the tank!

There are so many pebbles under the transformer resolved

Prevent oil spills, but also fire riot. Seepage of oil can go on, as if the provisions of the ministerial standards, a large oil-immersed transformers shall be provided with the lower oil reservoir, an area   Electric transformer  than the plane occupied by the transformer, the depth of about 1M, laying 10CM diameter around the cobbled   air circuit breaker  is to absorb the transformer oil. But let not the oil can absorb the oil leak continues, the transformer is a slope below the lowest point has a grille, through tubing connected to the incident under the tank. Let go of the oil flow to the accident on the tank!

There are so many pebbles under the transformer resolved

Prevent oil spills, but also fire riot. Seepage of oil can go on, as if the provisions of the ministerial standards, a large oil-immersed transformers shall be provided with the lower oil reservoir, an area  Voltage stabilizer  than the plane occupied by the transformer, the depth of about 1M, laying 10CM diameter around the cobbled  power transformers  is to absorb the transformer oil. But let not the oil can absorb the oil leak continues, the transformer is a slope below the lowest point has a grille, through tubing connected to the incident under the tank. Let go of the oil flow to the accident on the tank!

Work features intelligent AC contactor: intelligent AC contactor on the switch body

Work features intelligent AC contactor: intelligent AC contactor on the switch body, the installation of intelligent control module, starting, pull, breaking the optimal control of the whole process, and having a communication function in the starting process, the microcontroller  air circuit breaker . voltage real-time sampling, if the supply voltage exceeds the minimum pull-in voltage, the voltage value according to the SCM system in accordance with the appropriate procedures to control the controllable elements phasing, timing of work to ensure that the contact is in the best starting state in sorption state, low voltage Sorption DC circuit provides the electrical energy to achieve energy sorption silent operation.  mcb circuit breaker , breaking signal, microcontroller system through the current transformer on the main circuit current is sampled to enter the three-phase circuit breaking  Circuit breaker  control procedures to achieve breaking control the intelligent AC contactor has the following salient features: to achieve a zero-phase circuit breaking current control, no arc or less arc breaking, contactors electrical life greatly improved; through the SCM process control, corresponding to different supply voltages, contactors You can select the best closing phase angle, with the election phase closing function;

Vacuum breaker power transmission and distribution systems as the most common switch electrical equipment

Vacuum breaker power transmission and distribution systems as the most common switch electrical equipment, its mechanical  electric transformer  is necessary, but also improve the supply and distribution reliability, the only way to protect the safety of the power system. The overall design of the mechanical properties of the vacuum circuit  Voltage stabilizer  of the system mainly refers to mechanical actuation device driven dynamic and static contact points closing process, some of the performance indicators, the main trip contact stroke of closing speed, average speed of closing , open and close time, over the same period of the three-phase tripping, closing contacts average speed, closing contact bounce time, the cumulative movement allowed to wear contacts thickness.

Reliability of the vacuum circuit breaker depends to a large extent the mechanical actuating system reliability

Reliability of the vacuum circuit breaker depends largely on the mechanical reliability of the actuator system. International Conference organized international survey shows that a large grid in a vacuum circuit breaker failure, mechanical failure (including the actuator and control circuit) accounted for more than four-fifths of all the failures, other arcing, insulation faults occupy a smaller proportion lower heat failure ratio.  Voltage stabilizer  factory inspection and  electric meter  test users, regarded as an important test of the mechanical properties of the pilot project. Based on the analysis of research results and trends on the domestic circuit breaker monitoring, developed the mechanical properties of the vacuum circuit breaker testing device based on DSP. First, the mechanical  power transformers  of the vacuum circuit breaker test parameters were analyzed, and then introduces the mechanical properties of the vacuum circuit breaker test equipment hardware and software design, hardware design. Firstly, the instantaneous signal responsive to the Hall current sensor actuator aggregate, the current signal tripping coil; using linear displacement sensors measure the moving contact trip signal, and converts it into a voltage signal synchronization output;

Contactor is a production of large, wide application of electromagnetic devices

Contactor is a production of large, wide application of surface electromagnetic devices are commonly used in the distribution and control of electrical products . Contactor mechanical parameters from the main contacts open , overtravel , early pressure , final pressure and three-phase synchronous main contact and poor , these parameters has an important impact on the performance of the contactor , so the detection of mechanical parameters it is very necessary . At present, although there are some AC contactor mechanical parameters measuring instrument , but failed to electromagnetic bodies early pressure , final pressure , and counter- force  electric meter  and other parameters for accurate measurement. Due to the particularity of the contact structure , which is characteristic of the anti- reaction force of the spring , the contact spring and an auxiliary contact spring and the like. Accordingly, the reaction force characteristic should be between the plurality of springs and the combined effect of the displacement between the movable member , which is an important parameter of the electromagnetic  power transformers  development and performance analysis . However, so far the main contactor is a counter- force characteristics of the spring reaction force characteristics , structural characteristics of the contactor according to a theoretical synthesis reaction and the lack of fit between the actual displacement of the structure , and this theory not reflect the characteristics of the spring reaction force and the contact with the actual structure , processing and properties of the error caused by the deviation . Therefore, the theoretical reaction force characteristics can not be a true reflection of the reaction force and displacement contacts during exercise .

Many advantages of permanent magnet contactor, a novel permanent magnet contactor

Based on the many advantages of permanent magnetic contactor, we propose a new type of permanent contacts that Nanocomposite permanent magnetic material contacts. Nanocomposite permanent magnetic alloy is a new type of permanent magnet alloy, combining the advantages of this type of alloys with high hard magnetic and soft magnetic anisotropy with high saturation magnetization, magnetic nano-scale  circuit breakers  two phases exchange coupling high integrated magnetic properties. It combines the dual characteristics of soft and hard magnetic materials, high saturation magnetization of both soft magnetic materials have high coercivity hard  Voltage stabilizer . Almost reversible magnetization characteristic curve, which magnetization, magnetic went well. And has the potential maximum magnetic energy product, it is possible to maintain the permanent magnet closed. This analysis shows that the material properties of the material is suitable for permanent magnetic contactor.

DC contactor for its high depth conversion, input / output ratio, anti-jamming ability, etc.

DC contactor for its high depth conversion, input / output ratio, anti-jamming ability, etc., become the indispensable power system critical components. In recent years, with the rapid development of all-electric aircraft, space stations, electric cars, the demand for high-power DC contactor increasing its performance requirements are increasing. Contactor is a measure of the dynamic characteristics of the performance and  electric meter  of key indicators that can lay the foundation for its simulation research for the optimal design of high-power DC contactor. Thus, in recent years around the dynamic characteristics of the contactor more  mcb circuit breaker . Solving in dynamic characteristics, in addition to virtual prototyping technology, the use of static data based on numerical solving method, the application of the finite element method to solve the transient. In terms of the dynamic characteristics of the contactor, AC contactor is closed bounce simulation studies and calculations and optimized to reduce bounce;