Jiangsu ups Power Agency - Hills UPS power supply Daquan price -ups

Jiangsu ups Power Agency - Jiangsu Hills UPS power supply prices - Jiangsu ups UPS Power Index for China power grid environment and network monitoring and network systems, medical systems reliability requirements for the power to overcome the large computer network system centralized power supply caused Power grid deteriorating environment issues to new digital technology developed in the third foundry frequency pure-line intelligent UPS. DC power supply, is a device to maintain the circuit in the formation of steady current. Such as batteries, batteries, DC generators. UPS and DC power supply are business critical support equipment, maintenance of the traditional management include: ① routine patrol appearance, regular replacement of the battery, the filter capacitor, fans and other wearing parts, do battery activation overhaul; ② modification or replacement equipment use using advanced tools to test battery performance. This management approach businesses to invest in high-cost, maintenance personnel workload and difficult to control equipment running status in real time and critical data and low equipment accident prevention. Implementation of online maintenance and management to avoid the shortcomings of the traditional way to get a good benefit. UPS in Chinese means "uninterruptible power supply" is the English "Uninterruptible Power Supply" acronym, which can protect the computer system after a power outage to continue working for some time to allow the user to save an emergency, so that users will not be affected due to power failure or loss of work data. Edit this paragraph composition UPS power supply system consists of five parts: the main road, bypass, battery and other power input circuit, carry out AC / DC conversion rectifier (REC), be DC / AC conversion inverter (INV), inverter and bypass output switching circuit and a storage battery. Regulators function of their systems is usually done by the rectifier, or thyristor rectifier uses high frequency switching rectifier itself can control the output amplitude function according to changes in foreign, so that when the foreign change (the change should satisfy the system on request), a substantially constant output amplitude of the rectified voltage. Purification accomplished by the energy storage battery, since the rectifier transient pulse interference can not be eliminated, there is still the rectified voltage pulses. Energy storage battery in addition to DC Direct energy storage function, the rectifier is like to pick up a big container capacitor, the size of its equivalent electric capacity storage battery capacity is proportional to the size. Since the voltage across the capacitor is not mutated, namely the use of a capacitor for smoothing characteristic pulse eliminates glitches, played a purification function, also called interference shielding. Frequency stabilization accomplished by the converter, frequency stability depends on the stability of the oscillation frequency converter. UPS power supply system for the convenience of the daily operation and maintenance, the system is designed to work switches, hosts self-test uninterruptible power failure automatic bypass switch and maintenance bypass switch, switch control. The grid voltage is normal, to power the load as shown, and, at the same time to the storage battery; when sudden power failure, UPS power supply starts operating, storage batteries supply the power required by the load, maintain normal production ( As thick black → below); when due to the production needs, the load for severe overloading directly from the rectified mains voltage to the load (as shown in dashed lines). Editing process of this section when the mains is normal 380Vac, the DC main circuit DC voltage, AC supply DC-AC inverters, uninterruptible power supply input block diagram of a stable 220V or 380Vac AC voltage, while electricity after rectification Charge the battery. Any time when the mains voltage or a sudden power failure, the battery pack by feeding power to the DC circuit through the isolation diode switch. From the power supply to battery power is no switching time. When the battery is about to run out of energy, UPS audible alarm, and stop the discharge limit inverter operates in battery, sounding the alarm. Uninterruptible power supply overload protection function, when the case of overload (150% load), the jump to bypass state, and automatically returns to normal when the load. When a serious overload (over 200% of rated load), the uninterruptible power supply immediately stop the inverter output and switch to bypass state, this time in front of the input air switch may trip. After eliminating the fault, just close the switch, reboot began to return to work. Edit this paragraph arrester vocabulary: to absorb lightning wave device works, lightning momentary high voltage into the circuit, causing the absorption lightning arrester conduction current, voltage clamp circuit within the safe range. Arrester can be used as component parts of a variety, such as varistors, discharge, etc. Note: The lightning discharge voltage is high voltage between the earth and the atmosphere, and therefore, the arrester have a good grounding to work. Fuse: A fuse small devices overheat, causing overload or short-circuit when the load current is too Assembly blow the fuse to protect the electronic equipment from excessive current damage, serious injuries can be avoided due to an internal failure of electronic equipment caused. Thus, each fuse rated specifications on Jie, when the current exceeds the rated specifications of the fuse will blow. Transformers: principle of electromagnetic induction, the iron core and a coil, can be divided into two parts the primary coil and the secondary winding, the primary input voltage, output voltage secondary side there is induced, thereby performing power transfer. The secondary side can provide a variety of voltage output, step-up, step-down function, so the transformer will handle a variety of different voltage electricity demand in the circuit. Regulators Accuracy: refers to the relative amount of change in output voltage as a percentage, the smaller the better. When the input voltage or load changes, UPS output voltage will be increased or decreased, the smaller the changes show that the higher the voltage accuracy. Uninterruptible Power Supplies: UPS [Uninterruptible Power System (or Supply)]: is the battery pack, inverter and other circuits, to provide the power supply when AC power outage. Edit this paragraph anomalies uninterruptible power supply grid in response to the following situations may occur: power (grid stops working, no voltage output) drop (known as subsidence, voltage more than 10%, lasted a few seconds) Continuous sustained over-voltage pressure line noise (due to poor shielding line and the introduction of radio frequency or electromagnetic interference) frequency shift (generator instability grid frequency deviation) switching transients (also known as transient, the electrical equipment switch or voltage variation caused by the discharge, sometimes up to 20,000 volts, but the duration is very short, only a few nanoseconds) Harmonic (grid disturbance by the nonlinear characteristics of electrical equipment generated alternating current sine wave) for the above kinds of power problems, there are several different solutions , the following table back-line interactive pure-line surge × × / △ ○ high voltage surge × × / △ ○ transient overvoltage × × / △ ○ sags × × / △ ○ Noise × × / △ ○ frequency drift × × / △ ○ harmonic × × / △ ○ brownouts × × / △ ○ power failure ○ ○ ○ ○ △ representatives have better protection or, as the situation on behalf of the limited protection × mean no protection edit fly this paragraph development Wheel before using the battery age, UPS has been using the flywheel and the engine load to provide power supply, which is called the flywheel uninterruptible power supply or rotary uninterruptible power supply. Flywheel uninterruptible power supply by the rectifier, DC motors, flywheels, diesel (or gasoline engine) and a generator and other components. In the case of power supply, the DC drive motor supplied by the rectifier drive rotation of the flywheel, and with a generator to supply the load. Due to the inertia of the flywheel, the generator speed can be balanced, this time from the uninterruptible power supply filter grid interference. When the grid power, the flywheel to continue to drive the generator rotor rotation, and start the diesel engine driven generator, replace the existing power grid to supply the load. Due to the internal combustion engine flywheel uninterruptible power supply to provide power, will have a greater noise while volume is large, so it is used for emergency situations, and some harsh natural conditions of the occasion, usually when uninterruptible power supply using batteries to provide power . Battery type from 1960 American General Electric Company's research and production of uninterruptible power supplies since the uninterruptible power supply has been improved, but the basic principles have not changed significantly. Modern uninterruptible power supply from the battery pack, inverter and control circuit, one end connected to the other end of the grid connection of electrical load. Under normal circumstances the grid voltage, uninterruptible power supply for their own use grid charging grid when abnormal, the UPS will be stored in the battery power release for load. It is according to work is usually divided into line and back-up (also known as off-line) two; by sinusoidal output waveform can be divided into approximately sinusoidal (recessed to fit a square wave sine wave) and so on. Edit this paragraph ups principle UPS classification and divided according to the principle reserve, on-line and line-interactive three categories. Among them, the most commonly used is the back-up UPS, which has the most basic UPS automatic voltage regulator, power protection and most important function, although generally the conversion time of about 10ms, but because of its simple structure and have cheap, reliable of advantages, it is widely used in the computer, peripherals, POS machines. UPS back-up power supply is divided into back-sine wave output UPS power supply and back-up style square wave output UPS. When the mains supply is out 170V ~ 264V range; single output can be done 0.25KW ~ 2KW, when the mains at 170V ~ 264V between changes to the user by providing electricity regulator addressed: sine wave output UPS back-up power supply only provide high-quality sine wave power from the UPS. Off-square wave output UPS power supply: UPS and back-up power supply sine wave output except that provide users with 50Hz square wave power. Online UPS structure is more complex, but perfect performance, can solve all power problems, such as Stone PS series, its distinguishing feature is the ability to continue zero interruption pure sine wave AC output can be solved peak, surges, frequency drift, and all of Power problems; the large investment required, usually used in key equipment and network centers of power demanding environments. Line Interactive UPS, compared with the back-up phase, line interactive with a filtering function, anti-interference ability is strong electricity, the conversion time of less than 4ms, the inverter output is an analog sine wave, it can be equipped with servers, routers and other network equipment, or Electricity use in harsh environment areas. Edit this paragraph apply uninterruptible power supply has been widely used: mining, aerospace, industrial, telecommunications, defense, hospitals, computer business terminal, network servers, network equipment, data storage device UPS uninterruptible power supply emergency lighting system, railways, shipping, transportation, power plants, substations, nuclear fire safety alarm system wireless communication system, program-controlled switchboards, mobile communications equipment in the field of solar energy conversion storage control device and emergency protection systems, personal computers and the like. Edit this section features UPS (Uninterruptible Power Supply), that is an uninterruptible power supply, is an energy storage device comprising an uninterruptible power supply ups, to the inverter as the main part of the constant pressure constant frequency of uninterruptible power supply. Mainly used for a single computer, computer network systems, or other electronic devices to provide uninterrupted power supply of electricity. When the mains input is normal, UPS will supply after the mains voltage to the load use, this time UPS is an alternating electric regulator, but it also to charge the battery inside the machine; when the electricity interruption (outage) When, UPS immediately internal battery power, the continued supply of 220V AC power to the load through an inverter to convert the ways in which to maintain the normal work load and protect the load the software and hardware from damage.