2015年1月17日星期六

electric transformer Electricity Related difference

Electricity is generated a magnetic field, the magnetic field also can be converted into electricity. Put a pass on the AC coil, it will generate an alternating magnetic field electric transformer, then the alternating power transformers magnetic field through the other coil, the coil will induce a voltage to another, it is the principle of the transformer, the transformer and the number two a coil turns relating; simply put, is the use of magnetic coupling of the transformer principle, all the former secondary winding (coil) composition, size, and is proportional to the voltage across the coil turns of the coil, so that the number of turns of the primary and secondary windings the ratio determines the transformer turns ratio this. It is clear that there is no role of regulator transformers, because the secondary voltage with the primary voltage changes.
Regulator principle is the use of negative feedback, so to speak, will be open to the half faucet tap, faucet mounted at the exit of a sensor that can detect how much water, if the water Electric transformer volume electric transformer, and will automatically will tap off a small point, if a small amount of water, it will automatically open a large number of taps, so always keep a constant amount of water. Regulators principle generally the case, there can be detected a change in output voltage of the circuit (the error amplifier inverting input voltage dividing resistors sampling circuit, this circuit can be reduced to only one integrated chip) in the voltage regulator, when the output voltage changing when the output voltage change is detected by the chip circuit provides feedback to the servo motors, servo motors driven by another location jib automatically adjust the brush, so that the output voltage stability, which is the easiest regulator.
In summary said, there is no regulation of the role of the transformer, but the use of negative feedback can be designed with the role of regulator transformer, this is no problem, but in Inverter Power Supply general the transformer is not the case. Transformer in a certain range of output voltage change is small, said regulator is not a concept.

2015年1月14日星期三

Cncelegroup power circuit breaker

All regulators, have taken advantage of the same technology to achieve stable output voltage. Output voltage dividing resistors connected to the amplifier inverting input Switchgear & Substation terminal of the sampling error, the error amplifier non-inverting input connected to a reference voltage. Always try to force the error amplifier input equal at both ends. To this end, it provides the load current to ensure that the output voltage stability (ie negative feedback).
Regulators pictures regulator and UPS are different concepts, but many of my friends are always wrong to think the regulator is UPS, essentially there is a difference; UPS into line and back-up, general computer equipped belong back-up, and it belongs to an emergency power supply; back-up is an electronic switching regulator with the regulator part, can be used as the regulator Used, but regulators are not effective; regulator: it is against voltage instability designed primarily as a back-end equipment protection purposes, for equipment protection function better. electric energy meter Generally large UPS systems must also be equipped with a bypass regulator that LW-PLG regulator. The above describes the concept of the regulator, UPS is here to talk about what?
UPS in Chinese means "uninterruptible power supply" is the English "Uninterruptible Power Supply" acronym, it can protect the computer system after a power outage to continue working for some time to allow the user to save an emergency, so you do not work due to power failure or loss of influence data. It is in the computer systems and network applications, mainly plays two roles: one for emergency use, to prevent a sudden power failure affecting the normal operation, causing damage to a computer; the second is to eliminate surges on mains, instant high voltage, instantaneous low voltage, wire noise and frequency Air circuit breaker offset and other "power pollution", to improve power quality, providing high-quality power for computer systems.

2015年1月11日星期日

Circuit breaker inverter

In principle, the basic application, UPS is a storage device containing, as the main component in the inverter, power protection devices output voltage frequency stabilization. Voltage stabilizer Rectifier consists of several parts, batteries, inverter and static switches and other components.
1) rectifier: rectifier is a rectifier, simply means that the AC (AC) is converted to direct current (DC) devices. It has two main functions: first, the alternating current (AC) into direct current circuit breaker, supplied to the load by filtering, or the supply of the inverter; second, to provide a charging voltage to the secondary battery. Therefore, it is also to play a role in the charger;
2) Battery: UPS battery is used as a storage means for electrical energy, which consists of several cells connected in series, which determines the size of the capacity sustain discharge (supply) time. Its main function is: when the mains is normal, the electrical energy is converted into chemical energy stored in the battery inside. When the mains fails, the chemical energy into electrical energy supplied to the inverter or the load;
3) Inverter: Popular speaking, the inverter is a direct current (DC) is converted to alternating current (AC) of the device. It consists of an inverter bridge, control logic and filter circuit;
4) Static Switches: static switch, also known as static switch, power transformers which is a non-contact switch, is a two SCR AC switch (SCR) reverse parallel composition, the closing and opening by logic controller control. Conversion type and model is divided into two. Conversion type switch is mainly used for two-way power supply system, its role is to automatically switch from the road all the way to the other; and models switch is mainly used in parallel with the mains inverter or multiple inverters.
Regulator is stable voltage by beating the relay. When the grid voltage slight fluctuations, or within a certain range of open or close other appliances will cause the power regulator circuit is activated automatically corrected, frequently beating the relay. Each relay beat shift, will make a brief power supply interruption occurs. Although this does not affect the normal use interrupt other household appliances, but highly sensitive computer literacy interference inside is great, every regulator beating shift, like an instantaneous pulse input in the computer, the computer is likely Switchgear & Substation to cause an error signals serious cases cause damage to the hard disk or floppy drive stuck.

2015年1月8日星期四

electric transformer Authenticate

General medical device class stage power needs through FCC-B, electric transformer, EN55011550226120461000 such as electromagnetic compatibility and immunity Air circuit breaker to electromagnetic interference testing. Select the completion of these tests not only within the right equipment to ensure the electromagnetic influence other electronic components, and medical equipment can reduce development cycles and time to market prior to the subjects.
Size and high power density
In addition to medical and multifunction devices, high-precision detection and adjustment direction, the smaller size and portability is a development direction. This requires medical equipment supply must have a higher power output in a smaller board area conditions.
Special Applications
Centralized power supply products on the market mcb circuit breaker are mostly standard output, even though there are some products can be by way of an external power supply circuit, output adjustment, the adjustment range is not large, but stability is also problematic. If you hit a low voltage, high current or high voltage DC on how to handle the situation, of course, can be used to customize the way, but the price is quite high, the customer can accept.
Price
Today the price of medical equipment due to fierce competition, has gradually transparent, especially some small home medical equipment, prices have been very popular and mass. Switchgear & Substation So this requires an important part of medical devices - power, there must be price competitive.

2014年12月29日星期一

Cncelegroup Energy-saving technology

AC contactor AC contactor is widely used in low voltage circuits, is a safe, easy to control, volume and a wide range of industrial necessities. Now commonly used in the rated Electric transformer current 63A and above large, medium-capacity AC contactor should more than million Taiwan dollars, its operating system at the time of retention of electromagnetic active power consumed between 10W ~ 100W; reactive power consumed in the Dole spent tens to hundreds of spent between Seoul. The active power consumption distribution is roughly: 65% to 75% of the core, the short-circuit ring 25% to 30%, the coil 3% to 5%. For such a being in the industrialization and urbanization of exchanges and contacts with large country, and the energy needs of the growing tension, saving power resources has become imperative.
Such as the AC contactor solenoid operating system with an appropriate energy-saving technology to its operating system, the original design of electromagnetic ac to dc retention retention, core and short ring can save most of the loss in power, to obtain a high energy-saving efficiency (typically active saving rate> 90%). mcb circuit breaker Moreover, through the transformation can reduce or eliminate noise, reduce the temperature rise of the coil and extend the service life of the contactor.

2014年12月25日星期四

Energy-saving products Categories Circuit breaker

Constant component: F0 = Fatm / 2 (Fatm = 107 B2 MS / 8π)
Alternating component: F ~ = F0 cos 2ωt.
At work, due to the armature reaction force always been the role of the spring, the contact springs Fr reaction force, the electromagnetic suction averages Fat> Fr; when Fat <Fr armature at the beginning of the release, Fat> Fr armature also was attracted state, so Again and again, the armature Inverter Power Supply vibration and noise. At this point in the alternating magnetic core produced by hysteresis loss and eddy current loss will cause the core heat (superposition of silicon can play a role in reducing the eddy current losses). To reduce operating noise is usually open in the small capacity of the electromagnetic system yoke ends embedded in a small groove corresponding short-circuit ring, and its role is to be divided into two parts by the core flux, that does not pass through the magnetic flux Φ1 and short-circuit loop the magnetic flux Φ2 through the short-circuit loop, and Φ2 lag Φ1, suction is always greater than the synthesis reaction, thereby reducing the vibration and noise, but also increases the copper loss accordingly.
AC contactor power mainly by the retention power and pull the power of two parts, although larger coil pull starter instant power, but time is very short (tens of ms); working time has been in the retention hold (at this energy loss is mainly concentrated in the state of retention on iron loss). That is why if they can reduce the AC contactor work retention can save energy consumption, according to this principle, the current energy air circuit breaker contacts broadly categorized as follows:
1. Saver
Saver is divided into: capacitive, transformer, duty cycle (change) type. AC contactor Saver corresponding supporting the use of the contactor in the DC state retention operation, so to save energy. Saver AC contactor solenoid due to electromagnetic energy and the internal device Saver limitations generally applicable to the rated current of 60 ~ 600A AC contactor, lower than 60A AC contactor because the stored Electric transformer electromagnetic solenoid can run in DC maintain its pull; electromagnetic greater than 600A AC contactor can be easily generated so Saver damage internal components.

2014年12月23日星期二

electric transformer

Size and high power density
In addition to medical and multifunction devices, high-precision detection and adjustment direction, the smaller size and portability is a development direction. This requires medical Air circuit breaker equipment supply must have a higher power output in a smaller board area conditions.
Special Applications
Centralized power supply products on the market are mostly standard output, even though there are some products can be by way of an external power supply circuit, output adjustment, the adjustment range is not large, but stability is also problematic. If you hit a low voltage, high current or high voltage DC on how to handle the situation, of course, can be used to customize the way, but the price is quite high, the customer can accept.
Price
Today the price of medical equipment due to fierce power transformers competition, has gradually transparent, especially some small home medical equipment, prices have been very popular and mass. So this requires an important part of medical devices - power, there must be price competitive.