Tuesday, February 22, 2011

Weak current College】 【ups professional vocabulary analysis】.

<br> Ups: ups (uninterruptiblepowersupply) literal translation for uninterruptible power supply systems. As computer systems, in particular the protection devices on the network, which mainly serve two purposes: one is to provide backup power for computer system, in order to prevent .sudden power off power supply to damage the computer system; the second is the Elimination of power supply "pollution" (including the surge, volatility, pulse, noise, etc.), so that the computer's electronic components against destructive damage. <br> .Online UPS: online (online) UPS features can power up to "purify" role, and overload protection function and strong anti-interference ability, the quality of its power output than the backup type, also known as offline (offline) UPS is much .higher. Holdover time is longer, it is one of its advantages. In accordance with its history and can be broken down into serial UPS and line interactive ups two categories. <br> Serial-ups-ups: concatenation is currently the most commonly used .a ups, it and off line ups maximum difference between AC power supply, it is also normal. Because good stability and security, and therefore better suited to a variety of large-scale applications, the drawback is the circuit design of complex structures, maintenance .is difficult, a higher price. <br> Line interactive ups: line interactive ups is in serial-ups developed on the basis of a new technology. It in precision regulator, running stability, intelligence, security, and so does have characterised. Especially .on more than 3000 Watt, bulk in ups, taking into account how users of large computer systems and network servers, so the voltage on the higher requirements, and security protection is necessary should be. As a new product it is steadily enters the UPS market ., is affected by the cost of production, within a short period of time, it is still difficult to replace the serial type. <br> Ups output wave form: according to their works, ups has squarewave, stepwave, sinewave three output waveforms. .It is now widely used is the sinewave. <br> Ups load power: the UPS load power refers to ups do power supply that can support the sum of the power of the device. Only the sum of the device power is less than the ups .load power ups to ensure long-term and stable work. <br> Ups power factor: UPS power factor including input power factor and output power factor in two parts. The former is the ups do load from power gets effective power; the latter is .the ups do power supply power to the other load output power. Not provide the power, the greater the UPS output power factor. <br> Ups: ups efficiency of absorption from external power and to load the output power is the ratio between is ups .efficiency. Efficiency can only show that the consumption of power ups in itself, and does not reflect the level of the power factor. <br> Ups battery pack: ups delay length depends to a large extent on the capacity of the battery pack. Especially .large capacity battery pack, it almost to account for the overall price of ups 1 / 4 or so. The battery itself, its failure causes the ups is not working in high percentage, while maintaining the degree of difficulty, the loss should not be underestimated .. <br> Ethernet: General LAN often use this standard to be connected to the computer. <br> Three-phase: standard power system is a three-phase power supply, for each phase are sine wave and the difference of 120 degrees phase .and single phase of only one of three-phase phase only. <br> Synchronization: ups output produced by the sine wave power and input AC power is a sine wave, and they are required to maintain the frequency and phase. This is synchronized. .<br> Synchronous converters (SYCHRONOUS): is between two power supplies and loads a converter between. <br> Not synchronous converters (ASYCHRONOUS): cannot be a number between two power supplies and loads a converter between. <br> Continuous electrical power .systems ups: (UninterruptiblePowerSystem (orSupply)). Its function is to protect your valuable equipment, extension of the emergency escape apparatus of power, avoid power outage or electrical instability phenomena reducing device of life, to prevent power high surge harm and damage to equipment ., etc. <br> Water lines: single-phase power system, the water line of the function for the conduction current feedback, and the socket-to-ground allocation in the same area. But in the Taiwan region, only the water line .and the line of fire. <br> Power factor: this value is typically a value between 0 and 1, and its value must not be greater than 1, it is W (full power) and VA (virtual power) values than the number .and proportion of high and low, the proportion is higher then the electrical efficiency of the better, rather than the lower the number, it means that the appliance itself consumes energy increases, the more power. <br> Distortion: distortion into wave distortion, .voltage distortion, current distortion ... And so, no matter what kind of distortion, both as a percentage to calculate the size of its distortion and harmonic, voltage, current, and power factor. (Refer to the HARMONIC chapters) <br> .City: that is our common names of alternating current (AC), AC components include: voltage, current, frequency, the frequency of three can be divided into 50HZ (in Hertz) and 60HZ (in Hertz), voltage distribution, 100V ~ 240V .. In Taiwan using 60HZ/110V AC. Normal AC waveform for a sine wave, but also useful step wave composition similar sine wave, the wave is not applicable to the motor or inductive load equipment. <br> Handshake: in computer communications, the .two devices before beginning to communication, you must understand each other's status, as well as the method you use, if both of the situation, the computer will inform the consumer related information. <br> Common mode: refers to the circulation path interference noise .in a wayThe power that comes from the line of fire (Hot) or water (Neutral) and through the ground noise, as returned by the EMI. <br> Online-power system: ie to ONLINEups, its main circuit structure: surge absorption .filter circuit converts direct current circuit, alternating current (AC / DC) converts AC circuits, direct current (DC / AC), microprocessor control circuit, bypass, five. The action mode: normal in AC, AC surge absorption filter circuit via → AC .conversion converts direct current circuit ¡ .ú DC and AC circuits → convert AC output supply load, and charge the battery at the same time; once the microprocessor control circuit detection to the mains, immediately by the battery discharge → AC DC conversion circuit → and convert AC output supply load use. .If the microprocessor control circuit detect ups fault, ups will take the relay (Relay) skip to bypass (Bypass), from the mains power supply load and beep to inform users. <br> Valid values: Root-Mean-Square (RMS) .(or root-mean-square value). In alternating current or voltage sine wave, the valid values are 0.707, this data is based on a sine wave voltage and current in 1 cycle the conversion of energy peak. Bit: the computer data, .it is the smallest, only 0 and 1. Byte: a byte, a total of 8 Bits (bit). Serial port: used to transmit the signal connectors. (Refer to RS-232, Transfer (Asynchronous)) <br> Silicon .base is increasing to Silicon diode: (SILICON) is the main material of the design of diode, Diode Silicon base increase and General diodes different places is that when the voltage exceeds the rated voltage of the design, the diode will produce additional barriers effects ( .AvalancheEffect) and conduction, silicon base increase diode common do Zener diode. <br> Ann hours (AH): reflects the size of the battery capacity, its one of the indicators defined by the current discharge time. The same as the voltage of the .battery, the number of large capacity; the same number of batteries when Ontario, voltage high capacity. Usually when a voltage and indicates the number of common, such as the battery capacity 12V/7AH, 12V24AH, 12V/100AH 12V 65AH, /. .<br> Arrester for Lightning wave absorption device, works by lightning produces instant high voltage into the circuit, causing the lightning current arrester breakover absorption, circuit voltage clamp in the safe range. Surge arrester fittings can be used as a variety of components, such .as pressure sensitive resistor, discharge pipe, etc. Note: Thunder voltage is between the atmosphere and the Earth, so the high-voltage spark arrester to have a good grounding to work. <br> FUSE: a fuse-overheat of small devices, .overloading or load short-circuit current Assembly caused by blowing a fuse to protect electronic devices is not supported by overcurrent damage, also avoids electronic equipment because of internal troubles caused serious harm. Therefore, each fuse rated specifications on both, when current exceeds the rated .specifications fuse will fuse. Note: If you are not using the original factory with the specifications of the fuse might result in machine failure, or fire damage caused by the line, its own security. It is best to use the original factory with the specifications .of the fuse to protect the device can also be protected to ensure the security of the person. <br> Transformers: the use of electromagnetic induction principle, from the core and coil form, can be divided into one side of the coil and the secondary .winding of two parts, one side of the input voltage, secondary side have induced voltage output, for power delivery. Secondary side can provide a wide range of voltage output, step-up, step-down, transformer circuits can meet a variety of different .voltage power demand. <br> Voltage accuracy: means the output voltage of the amount of relative change, as a percentage, as small as possible. When the input voltage or load changes, the UPS output voltage will be raised or lowered, change the .smaller description higher voltage stabilizing precision. <br> Reactive power: unit is the VA, it is not absorbed by the load, so called reactive power, which make up the apparent power of the other part. Reduce reactive power increase network utilization. < .br> Line voltage: current after line will result because the line impedance, forming line pressure loss. Line voltage drop and proportional to the length of the lines, and lines of cross-sectional area inversely. <br> Backup power system: the original .main means diesel generators, gasoline generator, and so on, these ups does not appear in the early days, when the mains power equipment as a standby. But there, since ups ups has the added benefit of allowing you to respond quickly to dynamic, .adjustable output more stable, eliminating absorption power external adverse impact protection of electrical equipment. Thus, contemporary standby power ups in occupies more gradually. <br> MCU: using computer hardware and software technology for micro-control unit. <br> Charger for charging .the battery, to fill a charge energy device. Note: 1. the battery capacity, the greater the larger the charge current, otherwise the long charging time. 2. Select a suitable charging model makes protection battery and charging efficiency. 3. long delay .UPS battery charger cannot use standard machine charger replacement. 4. the charger's damage is likely to lead to a failure of the entire set of batteries. <br> Conducted interference (EMI): spread through the power line EMI noise. <br> RS485 .interface: enables multiple-station Internet and remote transmission of computer and other equipment for differential mode serial asynchronous transfer data signal standard interfaces. RS485 generally two data lines, the transmission distance of up to 1000 meters above the sea level. <br> Unit: .usually refers to diesel or gasoline generator. <br> Noise: used to describe the human sound quantitative sensory physical quantities, general use dB noise, ups generally 40-80dB. Active power: W is the unit is to load the real transformation of energy .absorption, it formed a part of the apparent power. <br> Differential mode EMI interference / (DifferentialMode): means interference noise flow paths. Those coming from the power supply line (HOT) and through the zero line (NEUTRAL) noise called differential .mode noise. Those coming from the power supply line (HOT) or zero line (NEUTRAL) and through the noise of the ground wire, called common mode noise. The General noise is not a common mode of constituencies path is the differential mode paths for .different paths of noise using different processing, by filtering, shield, and other means to eliminate. <br> IGBT: there are three levels, usually G, E, C, G, E-plus control signal can vary between E, C and .due to conduction.-For voltage IGBT, MOSFET driver with high-speed switching characteristics and low on-resistance of transistors. <br> Varistor: is the power input of a protective device, can absorb the input voltage, electrical devices plugged into the .wrong power or power surge is too large, all cause it damage. Device varistor role: to protect the internal electronic components and electrical appliances <br> MOSFET: there are three feet, usually G, D, S, G, S between control signal .can vary between D and S and due to conduction. MOSFET for voltage drive parts. <br> Zener diode: reverse current is large enough, the device's reverse voltage stable in nominal values are the same as the properties and diodes. <br> Reboot .: means an uninterruptible power supply is restored in the city. It can be manually restarted or predetermined by the software, the ups protection after reboot to reset. <br> Conducted interference (EMI): spread through the power line EMI noise. <br .> Charger for charging the battery, to fill a charge energy device. <br> Note: <br> 1. battery capacity, the greater the larger the charge current, otherwise the long charging time. <br> 2. Select a suitable charging .model makes protection battery and charging efficiency. <br> 3. long delay UPS battery charger cannot use standard machine charger replacement. <br> 4. the charger's damage is likely to lead to a failure of the entire set of batteries. <br> .Battery / battery: the battery ups are usually sealed maintenance-free lead-acid batteries. This type of battery of physical and chemical properties make it in the charge and discharge process almost no moisture loss, does not need to add water, place the sealed .structure to arbitrary, no corrosive gases, without maintenance. <br> Standard battery voltage is 2V, 4V, 6V, 12V, ups the most commonly used is 12V. A battery voltage is not enough, it use only with multiple-line form the .battery pack. Note: maintenance free sealed lead-acid battery life in fact, and how to use and is closely linked with the environment, you should note the following: <br> 1. does long-term storage is not used, this battery .will lose its activity, leading to an eventual failure. <br> 2. battery suitable environment temperature is 20 degrees, higher than 40 ° life will shorten, less than zero is a valid capacity decrease. <br> 3. depth of discharge in .the future you want to use in a timely manner, often deep discharge is not conducive to battery life. <br> 4. discharge (discharge below the battery rated lower voltage) damage to the battery. <br> 5. charger reliability and proper .charging capability is essential to life. Power adjustment rate: input change output voltage accuracy. Communication protocol: Internet device for data exchange between the common rules. <br> SNMP: Simple Network Management Protocol's initials, mainly used for monitoring, troubleshooting and control TCP ./ IP network, providing user data programming of simple network management protocol. <br> Input frequency range: standard frequency is in China power grid, power ups allows 50Hz frequencies have a certain range, in this context, ups power supply frequency synchronous tracking, .beyond the native frequency output. <br> Current peak factor (CF): the current peak factor refers to the current waveform peak and RMS. Because the computer load accepts its sine wave voltage is not necessarily the energy absorbed by the sine law, results .in a higher peak current (between 2.4-2.6 times current), therefore, ups design should provide CF value is greater than 3 current to meet computer load applications. <br> Battery in series / parallel connection: more performance capacity the same battery according .to certain polarity serial connection overlay is the concatenation, the formation of the battery pack; multiple voltage is the same battery or battery in the end, by the same polarity connections to form parallel output is parallel. <br> Battery management system, used for .protection of ups batteries and extend its life, the best charging effects. Battery management system includes software and hardware, including battery charging characteristics judgment, mode of automatic selection, automatic alarm and special battery charging and many other technologies. <br> <br> .<br> <br>.

No comments:

Post a Comment