{"id":27574,"date":"2021-11-07T14:37:19","date_gmt":"2021-11-07T14:37:19","guid":{"rendered":"https:\/\/www.takomabattery.com\/?p=27574"},"modified":"2023-12-07T04:01:04","modified_gmt":"2023-12-07T04:01:04","slug":"como-elegir-la-pila-ups-los-indicadores-de-rendimiento-de-ups","status":"publish","type":"post","link":"https:\/\/www.takomabattery.com\/es\/como-elegir-la-pila-ups-los-indicadores-de-rendimiento-de-ups\/","title":{"rendered":"\u00bfC\u00f3mo elegir la bater\u00eda del SAI? Los indicadores de rendimiento del SAI"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

How to choose the UPS battery? The performance indicators of UPS<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t
\n\nGenerally speaking, in order to explain the performance of UPS products, UPS manufacturers indicate certain standards that their products have reached in the product manual or provide user-friendly performance indicators, which are usually given in the product indicators column.\n\nUPS users can quickly understand the product overview by reading the indicator column in the product manual, which is necessary for equipment selection and maintenance. The following describes\u00a0the input indicators, output indicators, UPS battery<\/strong>\u00a0indicators and other indicators.\n
\n
    \n \t
  1. Input Indicators<\/a>\n
      \n \t
    1. Input voltage range<\/a><\/li>\n \t
    2. Input frequency range<\/a><\/li>\n \t
    3. Input power factor and harmonic component of input current<\/a><\/li>\n<\/ol>\n<\/li>\n \t
    4. Output Indicators<\/a>\n
        \n \t
      1. Output voltage<\/a><\/li>\n \t
      2. Output capacity<\/a><\/li>\n \t
      3. Output overload capacity<\/a><\/li>\n \t
      4. Output current peak coefficient<\/a><\/li>\n \t
      5. Parallel load current unbalance degree<\/a><\/li>\n<\/ol>\n<\/li>\n \t
      6. UPS Battery Indicators<\/a>\n
          \n \t
        1. Rated voltage of the UPS battery<\/a><\/li>\n \t
        2. The backup time of the UPS battery<\/a><\/li>\n \t
        3. The types of UPS battery<\/a><\/li>\n \t
        4. The charging current limiting range of UPS battery<\/a><\/li>\n<\/ol>\n<\/li>\n \t
        5. Other Indicators<\/a>\n
            \n \t
          1. Efficiency and active power<\/a><\/li>\n \t
          2. Conversion time between different operating states<\/a><\/li>\n \t
          3. Reliability requirements<\/a><\/li>\n \t
          4. Vibration and impact<\/a><\/li>\n \t
          5. Audio noise<\/a><\/li>\n \t
          6. Remote control and remote message function<\/a><\/li>\n \t
          7. Protection and alarm functions<\/a><\/li>\n \t
          8. Electromagnetic compatibility limits<\/a><\/li>\n \t
          9. Safety requirements<\/a><\/li>\n \t
          10. Environmental conditions<\/a><\/li>\n \t
          11. Appearance and structure<\/a><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/div>\n

            1.Input Indicators<\/h2>\n

            (1)Input voltage range<\/h4>\nInput voltage indicates the type of power supply to which the UPS is adapted. In addition to specifying whether the input AC voltage is single-phase or three-phase, the value of the input AC voltage, such as 220V, 380V, and 110V, should also be specified.\n\nAt the same time, it should also give the adaptation range of UPS to the power grid voltage change, such as \u00b110%, \u00b115%, \u00b120%, \u00b135% on the basis of rated voltage.\n\nOf course, the phase number and input rated voltage can also be given separately in the product specification. The upper and lower limits of the UPS input voltage indicate that when the grid\u00a0voltage exceeds the upper limit, the UPS disconnects the grid\u00a0and the UPS battery start to supply power.\n\nThe input voltage range of the backup and interactive UPS is 176 v to 264V. Table below\u00a0lists the input voltage range of the online UPS.\n\n\"UPS\n

            (2)Input frequency range<\/h4>\nInput frequency range indicates the input AC frequency used by the UPS and the allowed change range. In mainland China, the standard value is 50Hz, and the input frequency range is 50Hz\u00b11Hz, 50Hz\u00b12Hz, 50Hz\u00b13Hz, etc., which represents the synchronization range of the UPS internal synchronous phase-locked circuit.\n\nThat is, when the grid\u00a0frequency is within the range of change, the output of the UPS inverter is synchronized with the grid. When the frequency exceeds the range, the output of the inverter is not synchronized with the grid.\n\nThe output frequency is determined by the 50Hz sine wave generator inside the UPS. The input frequency of the communication UPS ranges from 48-52Hz.\n

            (3)Input power factor and harmonic component of input current<\/h4>\nIn circuit principle, the power factor of linear circuit is usually expressed by cos\u03c6, where \u03c6 is the angle of difference between sinusoidal voltage and sinusoidal current.\n\nFor nonlinear circuits, although the input voltage is sine wave, the current may be non-sine wave, so the current distortion must be considered for nonlinear circuits. Generally defined as\n

            PF=P\/S<\/span><\/p>\nWhere, PF is the power factor; P is active power; S is apparent power.\n\nIn nonlinear circuits, if the ratio of fundamental wave current effective value to non-sinusoidal current effective value is defined as distortion factor, the current distortion factor D is\n\n\"UPS\n\nWhere, +… , \u00a0represents 1,2… ,n\u00a0times harmonic current effective value. If the phase difference between fundamental wave current and voltage is also assumed to be \u03c6, the power factor PF can be expressed as:\n\n\"UPS\n\nThat is, the power factor of nonlinear circuit is the product of distortion factor and displacement factor (cos\u03c6).The input power factor refers to the input power factor and the input current quality of the rectifier charger in the UPS.\n\nIt indicates the capability of the power supply to absorb active power from the power grid and the interference to the power grid.\n\nThe higher the input power factor is, the smaller the harmonic component content of the input current is, which indicates that the power supply has less pollution to the power grid.\n\n\"UPS\n\nThe input power factor of the online UPS meets the requirements of Table 1-2. And the harmonic components of the input current meet the requirements of Table 1-3.\n\n\"UPS\n

            2.Output Indicators<\/h2>\n

            (1)Output voltage<\/h4>\n\u2460 Nominal output voltage value: <\/strong>\n\nsingle-phase input single-phase output UPS or three-phase input single-phase output UPS is 220V;\u00a0three-phase input three-phase output UPS is 380V, using three-phase three-wire system or three-phase four-wire system output mode.\n\nYou can select a UPS and related UPS battery based on the voltage level and power supply system required by your device.\n\n\u2461 Output voltage (precision\/range) : <\/strong>\n\nrefers to the output voltage change caused by input voltage change, load change, and temperature change during steady operation of the UPS.\n\nFor backup and interactive UPS, the output voltage (accuracy\/range) should be in the range of 198-242V. For the online UPS, the output voltage accuracy must meet the requirements of Table 1-4.\n\n\u2462 Dynamic voltage transient range: <\/strong>\n\nrefers to the fluctuation value of the output voltage when the UPS is loading and unloading at 100% or when the grid\u00a0bypass power supply channel is converted to the inverter power supply channel. UPS dynamic voltage transient range \u22645%.\n\n\"UPS\n\n\u2463 Transient voltage recovery time: <\/strong>\n\nthe time required for the output voltage to recover to (224\u00b14.4) V when the input voltage is rated, the output current is resistive load, and the output current changes from zero to rated current or the rated current changes to zero.\n\nThe voltage transient recovery time of the backup and interactive UPS should be less than or equal to 60 Ms. The voltage transient recovery time of the online UPS should meet the requirements listed in Table 1-5.\n\n\"mUPS\n\n\u2464 Output voltage frequency: <\/strong>\n\nRange of frequency synchro refers to the range in which the UPS output frequency tracks the change of the input frequency during AC power supply.\n\nThe frequency tracking range of the UPS ranges from 48 Hz to 52Hz. The rate of frequency synchro indicates the rate at which the UPS output frequency tracks the input frequency if the UPS output frequency is different from the input AC\u00a0frequency.\n\nThe rate is expressed in Hz\/s. The UPS frequency tracking rate ranges from 0.5\u00a0–\u00a02Hz\/s. When working in the output state of the inverter, the ratio (stability) should not be wider than (50\u00b10.5) Hz.\n\n\u2465 Output (voltage) waveform and distortion: <\/strong>\n\naccording to different uses, the output voltage is not necessarily sine wave, it can also be square wave or trapezoidal wave.\n\nThe output waveform of the backup UPS is usually square wave, and that of the online UPS is usually sine wave.\n\nWaveform distortion is generally for the sinusoidal output UPS, refers to the ratio of the square root of the harmonic value of the output voltage to the fundamental wave value. Table 1-6 lists the technical requirements for waveform distortion of the UPS output.\n\n\"UPS\n\n\u2466 Output voltage unbalance (three phase unbalance) :<\/strong>\n\nthe three-phase output UPS voltage is different in amplitude, phase difference is not 120 degrees or both.\n\nThe amplitude imbalance of the output voltage of the interactive UPS is less than or equal to 3%, and the phase deviation is less than or equal to 2\u00b0. The amplitude unbalance of the output voltage of the online UPS is less than 3%, and the phase deviation is less than or equal to 1\u00b0.\n

            (2)Output capacity<\/h4>\nCapacity is the primary indicator of the UPS, including the input capacity and output capacity. The output capacity is the product of the effective value of the output voltage and the effective value of the maximum output current, also known as the apparent power.\n\nThe unit of capacity is generally expressed by volt ampere (V\u00b7A), which is because the nature of UPS load is different from equipment, so it has to use apparent power to express capacity.\n\nManufacturers divide their products into multiple categories according to different capacity levels of UPS. Users can select the UPS and related UPS battery\u00a0according to actual needs and leave a certain margin.\n

            (3)Output overload capacity<\/h4>\nWhen a UPS starts to\u00a0load device, transient overload occurs.\n\nOutput overload capacity indicates the capacity and duration of the UPS to withstand transient overload. The UPS may be damaged if the overload capacity or overload time exceeds the allowed capacity.\n\nThe overload capacity of the backup and interactive UPS meets the requirements in Table 1-7, and that of the online UPS meets the requirements in Table 1-8.\n\n\"UPS \"UPS\n

            (4)Output current peak coefficient<\/h4>\nPeak output current coefficient refers to the ratio of the peak value of the periodic non-sine wave current to its effective value when the UPS output current is periodic non-sine wave current.\n\nThe peak output current coefficient of the UPS is greater than or equal to 3.\n

            (5)Parallel load current unbalance degree<\/h4>\nParallel load current unbalance refers to the ratio of the maximum deviation between the current value and the average current value of the parallel UPS output terminals to the average current value when two or more parallel UPS output terminals supply power in parallel.\n\nThe parallel UPS load current imbalance should be less than or equal to 5%. The smaller the value is, the better the balance of load current output by each UPS in the parallel system is.\n

            3.UPS Battery Indicators<\/h2>\n

            (1)Rated voltage of the UPS battery<\/h4>\nThe rated voltage of the UPS battery\u00a0varies with the output capacity. The rated voltage of the UPS battery\u00a0with a large capacity is higher than that of the UPS with a small capacity. The voltage of the communication UPS battery is 48V.\n\n\"The\n\nThe voltage of some large and medium-sized UPS battery\u00a0is 72V, 168V, or 220V. The numerical value provides a basis for extending the standby time of additional batteries, and on the other hand provides convenience for the replacement of UPS battery\u00a0in the future.\n

            (2)The backup time of the UPS battery<\/h4>\nThis parameter refers to the duration during which the UPS can continue to supply power to loads when the battery strings are in full charge and the battery strings are used to supply power during a grid\u00a0power failure.\n\nGenerally, when this indicator is given in the UPS manual, the backup time of full load is given, and sometimes the backup time of half load is also given.\n\nUsers can arrange the UPS working time based on this indicator and save files before the UPS shuts down. The user should note that the index varies with the state of charge and the degree of old and new of UPS battery.\n

            (3)The types of UPS battery<\/h4>\nThe UPS\u00a0battery types described in specifications describe the battery types used by the UPS. Users can refer to this instruction when using or maintaining or extending backup time.\n\nUPS mostly uses UPS lithium battery<\/span><\/span><\/a>, on the one hand, because the performance of lithium\u00a0ion UPS battery\u00a0are greater than valve-controlled sealed lead-acid UPS battery.\n\n\"UPS\n\nOn the other hand, because the cost-effective\u00a0of lithium ion UPS battery\u00a0is relatively high. In fact, At present, Lithium Battery Replacement Lead Acid<\/span><\/span><\/a>\u00a0is a new trend in the battery flied, it is no exception for UPS battery.\n

            (4)The charging current limiting range of UPS battery<\/h4>\nAvoid damage to the UPS battery due to excessive charging current. The typical value is 10% to 25% of the nominal input current.\n

            4.Other Indicators<\/h2>\n

            (1)Efficiency and active power<\/h4>\nEfficiency is a key indicators of UPS, especially large capacity UPS. It refers to the ratio of the output active power to the input active power under different loads.\n\nGenerally speaking, the higher the nominal power output of the UPS, the higher the system efficiency.The efficiency of the online UPS meets the requirements listed in Table 1-9.The efficiency of the backup and interactive UPS meets the requirements listed in Table 1-10.\n\n\"UPS \"UPS\n\nBackup and interactive UPS output active power \u2265 rated capacity 0.74kW\/ (kV\u00b7A); The active power output of the online UPS meets the requirements listed in Table 1-11.\n\n\"UPS\n

            (2)Conversion time between different operating states<\/h4>\n\u2460 Grid\/UPS battery conversion time. <\/strong>\n\nFor the online UPS, the grid\/UPS battery conversion time should be 0. For backup and interactive UPS, the grid\/UPS battery conversion time should be no more than 10ms.\n\n\u2461 Bypass\/inverter conversion time. <\/strong>\n\nFor an online UPS, the bypass\/inverter conversion time meets the requirements listed in Table 1-12.\n\n\"UPS\n\n\u2462 ECO mode conversion time. <\/strong>\n\nWhen ECO mode is used, the conversion time between ECO mode and other modes meets the requirements listed in Table 1-13.\n\n\"UPS\n

            (3)Reliability requirements(mean time between failures, MTBF)<\/h4>\nIt refers to the time between two consecutive UPS faults calculated by statistical method. It is a measure of UPS reliability. The MTBF of the online UPS should not be less than 10000h (without UPS battery) under normal operating conditions.\n\nMTBF of interactive and backup UPS should not be less than 20000 (without UPS battery) under normal operating conditions.\n

            (4)Vibration and impact<\/h4>\nVibration: amplitude 0.35mm, frequency 10~50Hz (sinusoidal frequency sweep), 5 consecutive cycles in 3 directions.\n\nImpact: peak acceleration 150m\/s2<\/sup>, duration 11ms, 3 consecutive impact in 3 directions. UPS with capacity \u226520kV\u00b7A can be replaced by transport test.\n

            (5)Audio noise<\/h4>\nThe UPS output is connected to the rated resistive load, and is measured with a sound level meter 1m in front of the UPS at a height of 1\/2.\n\nThe noise is called the UPS audio noise. The audio noise of the backup and interactive UPS must be less than 55dB (A). The audio noise of the online UPS must meet the requirements listed in table 1-14.\n

            (6)Remote control and remote message function<\/h4>\n\u2460Communication interface. <\/strong>\n\nThe UPS provides RS485, RS232, RS422, Ethernet, or USB communication ports(at least one\u00a0of these interfaces). The UPS also provides communication cables and alarm signal output terminals for the ports.\n\n\u2461 Remote measuring. <\/strong>\n\nUPS telemetry contents are as follows:\n\na. Online and interactive UPS, AC input voltage, DC input voltage, output voltage, output current, output frequency, output power factor (optional), charging current, battery temperature (optional);\n\nb. Backup UPS, output voltage, output current, output frequency, battery voltage.\n\n\u2462Remote communication. <\/strong>\n\nUPS teleconferencing contents are as follows:\n\na. Online UPS, synchronous\/asynchronous, UPS bypass power supply, overload, battery discharge low voltage, grid\u00a0failure, rectifier failure, inverter failure, bypass failure, and operation status records;\n\nB. Interactive and backup UPS, AC\/UPS\u00a0battery inverter power supply, overload, battery discharge low voltage, inverter or converter failure.\n\n\u2463Intelligent UPS battery pack\u00a0management (online UPS).<\/strong>\n\nThe UPS with a capacity greater than 20kV\u00b7A should provide the automatic floating charge and equalized charge conversion functions for UPS battery pack<\/span><\/span><\/a>\u00a0periodically, automatic temperature compensation for UPS\u00a0battery pack, and discharge recording functions for battery pack. UPS battery maintenance does not affect system output.\n

            (7)Protection and alarm functions<\/h4>\n\u2460 Output short-circuit protection. <\/strong>\n\nWhen the load is short-circuited, the UPS automatically shuts off the output and generates an audible and visual alarm.\n\n\u2461 Output overload protection. <\/strong>\n\nWhen the output load exceeds the rated power of the UPS, an audible and visual alarm is generated. When the overload capacity is exceeded, the online UPS should be transferred to bypass mode. The backup and interactive UPS should automatically shut off the output.\n\n\u2462\u00a0Overheat (\/ temperature) protection. <\/strong>\n\nAn audible and visual alarm is generated when the UPS operating temperature is too high. The online UPS should be transferred to bypass mode. The backup and interactive UPS should automatically shut off the output.\n\n\u2463 UPS battery voltage low protection. <\/strong>\n\nWhen the UPS works in battery inverter mode and the battery voltage reaches the protection point, an audible and visual alarm is generated, and the power supply stops.\n\n\"UPS\n\n\u2464 Output over-voltage and under-voltage protection. <\/strong>\n\nWhen the UPS output voltage exceeds the overvoltage threshold or is lower than the undervoltage threshold, an audible and visual alarm is generated.\n\nThe online UPS should be transferred to bypass mode. The backup and interactive UPS should automatically shut off the output.\n\n\u2465 Fan fault alarm. <\/strong>\n\nWhen the fan stops working due to a fault, an audible and visual alarm is generated.\n\n\u2466 Lightning protection. <\/strong>\n\nThe UPS must be able to protect against lightning strikes and voltage surges.\n\n\u2467 Maintain the bypass function. <\/strong>\n\nThe UPS with a\u00a0capacity greater than 20kV\u00b7A should be equipped with the maintenance bypass function. When the UPS needs to be maintained, the UPS can directly supply power to loads through the maintenance bypass switch.\n

            (8)Electromagnetic compatibility limits<\/h4>\nOn the one hand, the conducted interference and electromagnetic radiation interference generated by the UPS should be less than a certain limit. On the other hand, it requires the UPS to resist external interference.\n\n\"The\n\n\u2460 Limit of conducted disturbance. <\/strong>\n\nIn the 150kHz-30MHz frequency band, the conducted interference level on the AC\u00a0input power line of the system should meet the requirements of 8.1 in YD\/T983-2018.\n\n\u2461 Limit of radiation disturbance. <\/strong>\n\nIn the 30-1000MHz frequency band, the electromagnetic radiation interference voltage level of the system should meet the requirements of 8.2 in YD\/T983-2018.\n\n\u2462 Disturbance resistance requirements. <\/strong>\n\nThe anti-disturbance of the shell surface of the system includes: anti-disturbance of electrostatic discharge and anti-disturbance of radiated electromagnetic field. The system should comply with the requirements of 9.1.1 in YD\/T993-2018 during or after the above anti-disturbance tests.\n\nThe anti-disturbance of AC\u00a0port of the system includes: anti-disturbance of electric fast transient pulse group, anti-disturbance of conduction induced by rf field, anti-disturbance of voltage sag and short-time interruption, anti-disturbance of surge (impact).\n\nThe system shall comply with the requirements of 9.1.4 in YD\/T983-2018 during or after the above anti-disturbance tests: The DC\u00a0port of the system has the following immunity: the immunity of electric fast transient pulse group and the immunity of conduction disturbance induced by rf field.\n\nThe system shall comply with the requirements of 9.1.5 in YD\/T983-2018 during or after the above immunity tests.\n

            (9)Safety requirements<\/h4>\n\u2460 Shell protection requirements. <\/strong>\n\nThe ground screw between the UPS protection ground device and the metal shell must have reliable electrical connection with a resistance less than 0.1 ohm.\n\n\u2461 Insulation resistance. <\/strong>\n\nThe input and output terminals of the UPS apply 500V DC\u00a0voltage to the shell, and the insulation resistance should be greater than 2M\u00a0ohm. The positive and negative terminals of the UPS battery apply 500V DC voltage to the shell, and the insulation resistance must be greater than 2M\u00a0ohm.\n\n\u2462 Insulation strength. <\/strong>\n\nThe input and output terminals of the UPS apply a 50Hz and 200V AC voltage to the ground for 1 minute. Ensure that there is no breakdown or arc, and the leakage current is less than 10mA. Or 2820V DC voltage for 1min, no breakdown, no arc, leakage current less than 1mA.\n\n\u2463 Contact current and protection conductor current. <\/strong>\n\nThe contact current between the protective ground (PE) of the UPS and the input neutral line (N) should not be greater than 3.5mA. When the contact current is greater than 3.5mA, the effective value of the protective conductor current should not exceed 5% of the input current of each phase.\n\nIf the load is not balanced, the maximum value of the three phase current should be used to calculate.\n\nAnd the cross-sectional area of the protective conductor should not be smaller than 1.0mm2<\/sup>\u00a0in the large current of the protective conductor;\n\nA sign with warning or similar words, “Large contact current, must be grounded before switching on power supply”, should be installed near the primary power supply connector of the equipment.\n\n\"\"\n

            (10)Environmental conditions<\/h4>\nTo enable the UPS to work properly, the working environment must meet the requirements of the UPS; otherwise, the performance indicators of the UPS cannot be guaranteed.\n\nIt is usually not possible to list all the environmental conditions that affect UPS performance, but only the corresponding requirements for ambient temperature and humidity, and sometimes atmospheric pressure (altitude).\n\n\u2460Temperature. <\/strong>\n\nTemperature includes operating temperature and storage temperature. Operating temperature refers to the ambient temperature required for the UPS to operate.\n\nGenerally, the operating temperature of an indoor communication UPS ranges from 5\u2103to 40\u2103.\n\nHigh operating temperature not only increases the leakage current of semiconductor devices and electrolytic capacitors, but also leads to accelerated aging of semiconductor devices and shortened life of electrolytic capacitors and UPS battery.\n\nIf the operating temperature is too low, the performance of semiconductor devices deteriorates, the charging and discharging of UPS battery becomes difficult, and the capacity of battery\u00a0decreases. The storage temperature of the communication UPS is -25 \u2103 to -55\u2103 (excluding UPS battery).\n\n\u2461 Relative humidity. <\/strong>\n\nHumidity is the amount of water in the air. Note the amount of water in the air can be expressed as absolute humidity (the pressure intensity of water vapor in the air) or relative humidity (the percentage of actual water vapor in the air compared to the saturated water vapor pressure at the same temperature).\n\nUPS specifications generally give the relative humidity, working relative humidity: \u226490%[(40\u00b12) \u2103], no condensation; Storage relative humidity: \u226495%[(40\u00b12) \u2103], no condensation.\n\n\u2462 Altitude.\n\nThe altitude (atmospheric pressure) specified in the UPS manual is an important condition for the safe operation of the UPS. Altitude is emphasized because many components in the UPS are sealed.\n\nPackaging is generally carried out at one atmosphere pressure, the packaged device internal pressure is one atmosphere.\n\nBecause atmospheric pressure decreases with the increase of altitude, the pressure inside and outside the device shell will be formed when the altitude is too high, and the device will be damaged by deformation or burst in serious cases.\n\nWhen the UPS runs at full load, the altitude should not exceed 1000m. If the altitude exceeds 100m, the UPS should be used in accordance with the requirements of GB\/ t3859.2-2013 general requirements for semiconductor converters and power grid converters.\n

            (11)Appearance and structure<\/h4>\nThe coating of the chassis is firm, the paint surface is well-proportioned, and there is no peeling, rust and crack. The surface of the shelf is smooth, and all signs, marks, and text symbols must be clear, easy to see, correct, and neat.\n\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

            How to choose the UPS battery? The performance indicators of UPS Generally speaking, in order to explain the performance of UPS products, UPS manufacturers indicate certain standards that their products have reached in the product manual or provide user-friendly performance indicators, which are usually given in the product indicators column. UPS users can quickly understand […]<\/p>\n","protected":false},"author":6,"featured_media":27616,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1,151,161],"tags":[7,117,8,130,153,216],"class_list":["post-27574","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-battery-materials","category-lithium-ion-battery-knowledge","category-ups","tag-battery","tag-battery-cell","tag-energy","tag-lithium-battery","tag-lithium-ion-battery","tag-ups"],"modified_by":"tycorun666","_links":{"self":[{"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/posts\/27574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/comments?post=27574"}],"version-history":[{"count":0,"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/posts\/27574\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/media\/27616"}],"wp:attachment":[{"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/media?parent=27574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/categories?post=27574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.takomabattery.com\/es\/wp-json\/wp\/v2\/tags?post=27574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}