科士达UPS电源供电系统vs高压直流HVDC供电

科士达UPS电源系统供电是由科士达UPS电源蓄电池提供不间断电源，经过直流交流直接的变换。主要由科士达UPS电源主机、蓄电池、电池箱等组成。科士达UPS电源系统供电广泛应用于各大行业机房配电间等以及应用于办公室个人电脑等。

高压直流HVDC供电由交流配电单元、整流单元、直流配电单元等组成，适用于通信系统，为通信设备供电。

经过多年的发展和应用，目前的科士达UPS电源系统供电效率已经提高很多，可靠性也增强，并且可维护性强，可以并机冗余，部分品牌的整机效率可以达到95%以上，带载能力强。

高压直流HVDC供电有其优势也有不足，对于通信行业应用较成熟，但是HVDC系统的配电器件，例如空气开关、继电器等需要在高压直流下工作，选用要求高成本也较高，并且高压直流被存在一定安全风险。

电力科士达UPS电源与电力直流操作电源系统一起，组成发电厂，变电站的专用不间断电源，向微机、通讯、载波、事故照明及其它不能停电的设备供电。从电厂或变电站现有直流操作电源取电，不必像常规科士达UPS电源那样需要单设蓄电池组，从而避免蓄电池的重复投资，减少系统维护，减低运行成本。

电力科士达UPS电源的工作原理和输出特性与传统的科士达UPS电源完全相同，但是，由于它连接直流操作电源系统，因此其直流输入特性必须满足电力系统的专用要求。电力科士达UPS电源是为发电厂，变电站等电力行业设计，在发电厂、电力等电力系统中，DCS(分布式控制系统)，监控系统、自动化仪表，调度通信系统、微机系统等核心设备对供电质量及可靠性要求非常高，需要专用科士达UPS电源供电，这些负载绝大多数为单相负载。

Corstal UPS power supply system is provided by Corstal UPS battery uninterruptible power supply, through direct DC AC conversion. It is mainly composed of Corstal UPS mainframe, battery, battery box and so on. Corstal UPS power supply system is widely used in power distribution rooms in major industries and office personal computers.
HVDC power supply is composed of AC distribution unit, rectifier unit, DC distribution unit, etc. It is suitable for communication system and supplies power for communication equipment.
After years of development and application, the current Kosta UPS power supply system power supply efficiency has been improved a lot, reliability is also enhanced, and maintainability is strong, can be redundant, some brands of the overall efficiency can reach more than 95%, with strong load capacity.
HVDC power supply has its advantages and disadvantages. It is more mature for the communication industry. However, HVDC distribution devices, such as air switches and relays, need to work under HVDC. The selection requirements are high and the cost is high, and there are certain safety risks in HVDC.
The UPS power supply of Costa Electric Power, together with the DC operation power supply system, forms a special uninterrupted power supply for power plants and substations, which supplies power to microcomputers, communications, carriers, accident lighting and other equipment that cannot be cut off. It is not necessary to set up a single batteries group to collect power from the existing DC operating power supply in power plants or substations, as the conventional Corstal UPS power supply does, so as to avoid the repeated investment of batteries, reduce system maintenance and reduce operation costs.
The working principle and output characteristics of power Corstal UPS power supply are exactly the same as those of traditional Corstal UPS power supply. However, because it connects DC operation power supply system, its DC input characteristics must meet the special requirements of power system. Power Corstal UPS power supply is designed for power plants, substations and other power industries. In power plants and power systems, DCS (Distributed Control System), monitoring system, automation instrument, dispatch communication system, computer system and other core equipment require very high quality and reliability of power supply. It needs special Corstal UPS power supply. Most of these loads are single-phase negative. Carry.

电力科士达UPS电源系统一般由电力科士达UPS电源主机、旁路稳压柜、输出馈线柜等三部分组成(小功率时也可三合一)。

1、电力科士达UPS电源主机柜：输入输出隔离变压器、整流器、逆变器、静态旁路开关、旁路开关、逆止二极管;

2、旁路隔离稳压柜：旁路隔离变压器、旁路稳压器、手动/旁路维修开关;

3、馈线柜：回路分配单元、监测仪表、控制开关及信号指示等;

电力科士达UPS电源专用电源采用1+1的冗余供电系统，针对电力系统应用负载及环境，运用先进技术制造的工业级交流保护电源，能够充分满足电力DCS系统等负载对供电可靠性的要求。

电力科士达UPS电源主要有以下几个系统组成，采用两级变换。第一级变换采用整流器(AC-DC)，

把经过输入隔离变压器后的交流电变成稳定的直流电。第二级变换(DC-AC)采用逆变电源，把整流后输出的直流电变换成正弦波交流电经过隔离输出给负载。

隔离部分：输入隔离变将交流输入和直流隔离开，保护直流侧设备;输出隔离变将交、直流输入与交流输出隔离开，保护负载端设备。双隔离保证了直流输入、交流输入与交流输出三个端口的真正完全的电气隔离。

整流部分：将输入的交流市电转变为稳定的直流，送入逆变设备。

逆变部分：将外部直流或经过整流后的直流电源转变为稳定的正弦波交流电源。

控制部分：控制逆变器电源跟随基准市电，并与其保持相同的相位和频率，自动调节，并使电源在规定的范围内，按照设定的保护定值运行或保护。

显示部分：采用LCD及LED状态模拟盘，准确反映设备运行状态及故障信息。

切换部分：采用继电器或静态电子开关，对旁路、市电和逆变器输出电源进行自动切换。

以下整理了一些科士达UPS电源系统的使用注意事项，正确的操作可以延长系统的使用寿命以及提高工作效率。

1.科士达UPS电源主机内有许多高压储能器件，请勿擅自拆开机箱检查。操作人员必须懂得电工基本知识并熟读使用说明书。

2.请勿擅自拆卸各种连接电缆，应联系供应商或是售后技术服务人员进行操作。

3.不要随意移动或拆装科士达UPS电源不间断电源系统，不得强裂振动，并保持通风良好。

4.科士达UPS电源系统连接有蓄电池，即使在未接交流市电的情况下，其输出端仍可能会有电压存在，牢记这一点。

5.当科士达UPS电源系统需要移动或重新配线时，必须保证科士达UPS电源完全停机，市电输入、电池输入的空开断开。否则输出仍可能有电，有触电的危险。

6.为确保用户的人身安全，不间断电源产品必须有良好的接地保护。

7.请保持进、排气孔的通畅。进、排气孔的通风不畅会导致科士达UPS电源系统内部的温度升高，使机器中元器件的寿命缩短，从而影响整机寿命。

8.液体或其他外来物体绝对不允许进入科士达UPS电源机箱内。

Usually, the UPS power supply system of Electric Costa consists of three parts: the mainframe, bypass voltage stabilizer and output feeder cabinet of Electric Costa UPS power supply (three in one at low power).
1. The main cabinet of UPS power supply: input-output isolation transformer, rectifier, inverter, static bypass switch, bypass switch, backstop diode;
2. Bypass isolation voltage regulator: bypass isolation transformer, bypass voltage regulator, manual/bypass maintenance switch;
3. Feeder cabinet: circuit distribution unit, monitoring instrument, control switch and signal indication, etc.
The special UPS power supply of Kosta Power Supply adopts 1+1 redundant power supply system. Aiming at the applied load and environment of power system, the industrial AC protection power supply manufactured by advanced technology can fully meet the demand of power supply reliability for load such as power DCS system.
The UPS power supply of Electric Power Costa mainly consists of the following systems, which adopt two-stage conversion. The first stage converter uses a rectifier (AC-DC).
The alternating current after the input isolation transformer is transformed into a stable direct current. The second stage converter (DC-AC) uses an inverter power supply to convert the rectified DC output into sinusoidal AC output through isolation to the load.
Isolation part: Input isolation transformer isolates AC input from DC to protect DC side equipment; Output isolation transformer isolates AC and DC input from AC output to protect load side equipment. Dual isolation ensures true and complete electrical isolation of three ports: DC input, AC input and AC output.
Rectifier: The input AC power is converted into a stable DC and fed into the inverters.
Inverter part: converting external DC or rectified DC power supply into stable sinusoidal AC power supply.
Control part: Control the power supply of the inverters to follow the reference power supply, and keep the same phase and frequency with it, automatically adjust, and make the power supply run or protect in the prescribed range according to the set protection value.
Display part: LCD and LED status simulation disk are used to accurately reflect the operation status and fault information of the equipment.
Switching part: Relays or static electronic switches are used to automatically switch the output power of bypass, municipal and inverters.
Following are some points for attention in the use of Kosta UPS power supply system. Correct operation can prolong the service life of the system and improve work efficiency.
1. There are many high-voltage energy storage devices in the UPS mainframe of Costa. Do not open the chassis without permission for inspection. Operators must have basic knowledge of electricians and be familiar with the instructions.
2. Do not disassemble all kinds of connecting cables without authorization. Contact suppliers or after-sales technical service personnel for operation.
3. Do not move or disassemble the uninterruptible power supply system of Kosta UPS power supply at will. Do not crack and vibration strongly, and maintain good ventilation.
4. Kosta UPS power supply system is connected with batteries, even if it is not connected to AC power market, its output may still have voltage, keep this in mind.
5. When the Kosta UPS power supply system needs to be moved or re-wired, it is necessary to ensure that the Kosta UPS power supply is completely shut down, and the city power input and battery input are disconnected. Otherwise, the output may still have electricity, there is the danger of electric shock.
6. In order to ensure the personal safety of users, UPS products must have good grounding protection.
7. Please keep the intake and exhaust holes open. Poor ventilation of intake and exhaust holes will lead to temperature rise in the UPS power supply system of Costa, shorten the life of components in the machine, thus affecting the life of the whole machine.
8. Liquids or other foreign objects are absolutely not allowed to enter the UPS power supply chassis of Costa Rica.

9.万一科士达UPS电源系统周围起火，请使用干粉灭火器，若使用液体灭火器会有触电危险。

10.科士达UPS电源蓄电池的寿命随环境温度的升高而缩短。定期更换蓄电池可保证科士达UPS电源系统工作正常，且可维持足够的供电后备时间。

11.如果长时间放置不使用，必须将科士达UPS电源存放在干燥环境中。

12.科士达UPS电源系统长期停用情况下，建议每3个月接上UPS系统12小时以上对蓄电池进行充电，以避免电池因为长期不用而损坏。

13.勿将科士达UPS电源蓄电池打开，电解液会对皮肤和眼睛造成伤害，如果不小心接触到电解液，应立即用大量的清水进行清洗并去医院检查。

14.在科士达UPS电源系统带电的情况下，不得用湿的毛巾去擦除污垢。

15.科士达UPS电源蓄电池必须由专业技术人员进行更换，更换出来的电池必须送交特别的循环再造机构处理。

从专业的角度说，看一台科士达UPS电源的好与不好，最客观和最可靠的方法就是用测试指标去衡量。

就拿影响电网供电质量的输入功率因数来说，尤其是在大容量范围时，一般传统双变换型科士达UPS电源的标配功率因数大都在0.8左右，这就造成了约有30%的谐波电流对电网的*，其结果是使该电网上的变压器、电缆、保险丝和开关等设备发热、疲劳。若要改变这种状况就必须在前面加谐波滤波器或改6脉冲整流为12脉冲整流，但这又会带来两个副作用：一个是增加包括科士达UPS电源在内的电源保护设备的成本和体积重量，另一方面增加了科士达UPS电源的损耗，从而降低了可靠性。

又如科士达UPS电源的工作效率，这是一个直接与可靠性相关联的指标。一般传统双变换型科士达UPS电源由于其电路结构所限，很难将效率做高，尤其是在加入功率因数补偿设备后，就更难将效率做到92%以上。尽管这些科士达UPS电源采用了ECO经济运行模式，可以将效率做到97%以上，但这种ECO经济运行模式由于它实际上是甩开了科士达UPS电源的正常功能而采用了“旁路直接供电”方式，牺牲了稳压和抗*等UPS应有的基本功能，给用户的使用埋下了隐患，这无疑违背了使用科士达UPS电源的本来目的，因此极少被采用。

另外，带载和过载能力也是反映科士达UPS电源质量的关键指标，负载真正需要科士达UPS电源起保护作用的时机莫过于两种情况：当电网电压异常或是负载异常时。在电网电压异常时(包括断电)，对负载的保护靠的是科士达UPS电源输入电路和不间断功能，而负载异常时，对其保护则要靠科士达UPS电源的带载和过载能力。一般传统双变换型UPS的带载能力弱就是因为其负载功率因数的单一性，难于适应不同性质的负载。

In case of fire around the UPS power supply system, use dry powder fire extinguisher. If you use liquid fire extinguisher, you will be in danger of electric shock.
10. The life of UPS battery is shortened with the increase of ambient temperature. Regular replacement of batteries can ensure that the UPS power supply system works normally and maintain sufficient backup time.
11. If it is not used for a long time, the Corstal UPS power supply must be stored in a dry environment.
12. In the case of long-term outage of Kosta UPS power supply system, it is recommended to connect UPS system every three months for more than 12 hours to charge the battery, so as to avoid battery damage due to long-term use.
13. Do not turn on the UPS battery. The electrolyte will damage the skin and eyes. If you accidentally touch the electrolyte, you should immediately clean it with plenty of clean water and go to the hospital for examination.
14. No wet towel should be used to remove dirt when the UPS power supply system in Costa Rica is live.
15. The UPS batteries must be replaced by professional technicians. The replaced batteries must be sent to a special recycling facility for treatment.
From a professional point of view, the most objective and reliable way to see whether a Corstal UPS power supply is good or bad is to use test indicators to measure.
Take the input power factor which affects the quality of power supply in power grid, especially in large capacity range, the standard power factor of the traditional double-conversion Kosta UPS power supply is mostly about 0.8, which causes about 30% of harmonic current to the power grid*. The result is that transformers, cables, fuses and switches on the power grid are heated and fatigued. If we want to change this situation, we must add harmonic filter or change 6-pulse rectifier to 12-pulse rectifier in the front, but this will bring two side effects: one is to increase the cost and volume weight of power protection equipment including Corstal UPS power supply, and the other is to increase the loss of Corstal UPS power supply, thus reducing the reliability.
For example, the work efficiency of Kosta UPS power supply, which is an indicator directly related to reliability. Because of the limitation of the circuit structure, it is difficult to improve the efficiency of the traditional Dual-Conversion Corstal UPS power supply, especially when the power factor compensation equipment is added, it is more difficult to achieve the efficiency of more than 92%. Although these COSTAR UPS power supply uses ECO economic operation mode, which can achieve efficiency of more than 97%, this ECO economic operation mode uses "bypass direct power supply" mode because it actually abandons the normal function of COSTAR UPS power supply, sacrifices the basic functions of UPS such as voltage stabilization and resistance* and buries hidden dangers for users, which undoubtedly violates the use of COSTAR. Star UPS power supply is seldom used because of its original purpose.
In addition, load and overload capacity are also the key indicators reflecting the quality of Corstal UPS power supply. There are two situations when the load really needs the protection of Corstal UPS power supply: when the grid voltage is abnormal or when the load is abnormal. When the grid voltage is abnormal (including power failure), the protection of the load depends on the input circuit and uninterrupted function of the Corstal UPS power supply, while when the load is abnormal, the protection of the load depends on the load and overload capacity of the Corstal UPS power supply. Generally, the weak load carrying capacity of traditional Dual-Transform UPS is due to the simplicity of its load power factor, which makes it difficult to adapt to different types of loads.

弱电系统工程指第二类应用。主要包括：

1、电视信号工程，如电视监控系统，有线电视。

2、通信工程，如电话。

3、智能消防工程。

4、扩声与音响工程弱电系统的种类和特点 武汉弱电系统公司哪家好，如小区的中背景音乐广播，建筑物中的背景音乐。

5、综合布线工程，主要用于计算机网络。

随着计算机技术的飞速发展，软硬件功能的迅速强大，各种弱电系统工程和计算机技术的完美结合，使以往的各种分类不再像以前那么清晰。各类工程的相互融合，就是系统集成。

常见的弱电系统工作电压包括能把它们归入强电系统。

弱电系统主要针对的是建筑物，包括大厦、小区、机场、码头、铁路、高速公路等。 常见的弱电系统包括：闭路电视监控系统、防盗报警系统、门禁系统、电子巡更系统、停车场管理系统、可视对讲系统、家庭智能化系统及安防系统、背景音乐系统、LED显示系统、等离子拼接屏系统、DLP大屏系统、三表抄送系统、楼宇自控系统、防雷与接地系统、寻呼对讲及专业对讲系统、弱电管道系统、UPS不间断电源系统、机房系统、综合布线系统、计算机局域网系统、物业管理系统、多功能会议室系统、有线电视系统、卫星电视系统、卫星通讯系统、消防系统、电话通讯系统、酒店管理系统、视频点播系统、人力资源管理系统等等.

科士达UPS电源弱电系统的种类及特点:

1.电话通信系统:实现电话(包括三类传真机、可视电话等)通信功能。

2.计算机局域网系统:是实现办公自动化及各种数据传输的网络基础;星型拓扑结构;使用五类(或以上)非屏蔽双绞线，传输数字信号，传输速率可达以上。

3.音乐/广播系统:通过安装在现场(如商场、餐厅、客房、走廊等处)的扬声器,播放音乐,并可通过传声器对现场进行广播;多路总线结构;传输由功率放大器输出的定压120 V/120 Ω的音频信号，以驱动现场扬声器发声,传输线使用铜芯绝缘导线。

Weak current system engineering refers to the second kind of application. It mainly includes:
1. Television signal engineering, such as TV monitoring system and cable TV.
2. Communication engineering, such as telephone.
3. Intelligent fire engineering.
4. Types and characteristics of weak current system in sound reinforcement and sound engineering. Which company is good in Wuhan weak current system company, such as medium background music broadcasting in residential area and background music in buildings?
5. Integrated wiring engineering is mainly used in computer networks.
With the rapid development of computer technology and the rapid and powerful functions of software and hardware, the perfect combination of various weak current system engineering and computer technology makes the previous classification not as clear as before. The integration of all kinds of projects is system integration.
Common operating voltages of weak current systems include the ability to classify them into strong current systems.
Weak current system is mainly aimed at buildings, including buildings, residential areas, airports, wharfs, railways, highways and so on. Common weak current systems include closed-circuit television monitoring system, burglar alarm system, access control system, electronic patrol system, parking lot management system, visual intercom system, home intelligent system and security system, background music system, LED display system, plasma splicing screen system, DLP large screen system, three meter copy system, building automatic control system, lightning protection and grounding system, etc. Paging intercom and professional intercom system, weak power pipeline system, UPS uninterrupted power supply system, computer room system, integrated wiring system, computer LAN system, property management system, multi-functional conference room system, cable television system, satellite television system, satellite communication system, fire fighting system, telephone communication system, hotel management system, video on demand system, human resources Management system, etc.
The types and characteristics of Kosta UPS power supply weak current system:
1. Telephone communication system: realize the communication function of telephone (including three types of fax machines, videophone, etc.).
2. Computer Local Area Network System: the network foundation for realizing office automation and various data transmission; star-shaped topology; using five kinds of unshielded twisted pairs (or more) to transmit digital signals, the transmission rate can reach above.
3. Music/Broadcasting System: Playing music through loudspeakers installed in the field (such as shopping malls, restaurants, guest rooms, corridors, etc.) and broadcasting on the spot through microphones; multi-bus structure; transmitting audio signals of constant voltage 120 V/120 Omega output by power amplifiers to drive the sound of the field loudspeakers, transmission lines using copper core insulated wires.

4.有线电视信号分配系统:将有线电视信号均匀地分配到楼内各用户点;采用分支、分配器进行信号分配，为了减小信号失真和衰减，使各用户点信号质量达到规范规定的要求，其布线为树型结构，且随建筑物的形式及用户点分布的不同而不同;使用75 Ω射频同轴电缆，传输多路射频信号。

5.安防监控系统:通过安装在现场的摄像机、防盗探测器等设备，对建筑物的各出入口和一些重要场所进行监视和异常情况报警等;视频信号的传输采用星型结构，使用视频同轴电缆;控制信号的传输采用总线结构，使用铜芯绝缘缆线。

6.消防报警系统:该系统由火灾报警及消防联动系统、消防广播系统、火警对讲电话系统等3部分组成。

7.出入口控制系统:使用计算机、智能卡门锁、读卡器等设备，对各出入口状态进行设置、监视、控制和记录等，实现对建筑物各出入口统一管理，保证大楼安全，其拓扑结构和传输介质因产品而异。

8.停车场收费管理系统:通过安装在出入口地面下的感应线圈，感应车辆的出入，通过人工/半自动/全自动收费管理系统，实现收费和控制电动栏杆的启闭等。该系统布线仅限于大楼车场的出入口处，每一个出入口由一台控制器控制，控制器可以独立工作，也可以与上位管理计算机联网，其布线结构和传输介质因产品而异。

9.楼宇自控系统:通过与现场控制器相连的各种检测和执行器件，对大楼内外的各种环境参数以及楼内各种设备(如空调、给排水、照明、供配电、电梯等设备)的工作状态进行检测、监视和控制，并通过计算机网络连接各现场控制器，对楼内的资源和设备进行合理分配和管理弱电系统的种类和特点 武汉弱电系统公司哪家好，达到舒适、便捷、节省、可靠的目的。

科士达UPS电源常见问题回复及计算指导

Q：浪涌保护器和科士达UPS电源有何区别

A：浪涌保护器仅提供浪涌保护。科士达UPS电源除了提供浪涌保护外，还可以对输入电压进行持续调节，并在断电时提供后备电源。科士达UPS电源上插接浪涌保护器的做法十分常见，这样可以提供额外的浪涌保护和增加输出插座。

Q：我需要多长的科士达UPS电源电池运行时间?

A：在断网期间，您需要足够的电池运行时间来从容关闭系统或转用后备民电机。您可能还需要增加外部电池模块(EBM)选择件来延长动行时间。

Q：我们公司很小，还谈不上需要采取保护措施。我真要用到科士达UPS电源吗?

A：电源问题随时都有可能发生。电脑、服务器和网络之于你们公司的重要性可能堪比大型企业的数据中心。由于宕机造成的硬件损坏及可能的商誉、声誉和销售额员失，都会非常高昂。同时，如果重新启动加锁设备、修复受损文件或重新运行被中断的程序，也不可避免地会造成时间延长。因此，使用可靠的电源保护策略无疑是一项经济的保证措施。

4. Cable TV signal distribution system: distribute cable TV signals evenly to all user points in the building; distribute signals by branches and distributors, in order to reduce signal distortion and attenuation, and make the signal quality of each user point meet the requirements of the specifications, its wiring is tree structure, and varies with the form of the building and the distribution of user points; use 75_radio frequency coaxial cable, Transmission of multiple radio frequency signals.
5. Security monitoring system: by installing on-site cameras, anti-theft detectors and other equipment, the entrance and exit of buildings and some important places are monitored and abnormal alarms are given; video signal transmission adopts star structure and video coaxial cable; control signal transmission adopts bus structure and copper core insulated cable.
6. Fire alarm system: The system consists of fire alarm and fire linkage system, fire broadcasting system and fire intercom telephone system.
7. Entry and exit control system: use computer, smart card door lock, card reader and other equipment to set, monitor, control and record the entry and exit status, so as to realize the unified management of the entrance and exit of the building and ensure the safety of the building. Its topological structure and transmission media vary with the product.
8. Parking fee management system: by installing induction coils under the ground of entrance and exit, induction vehicles'entrance and exit, and manual/semi-automatic/automatic charging management system, the charging and control of electric railings can be realized. The system wiring is limited to the entrance and exit of the building yard. Each entrance and exit is controlled by a controller. The controller can work independently or can be connected with the upper management computer. Its wiring structure and transmission medium vary with the product.
9. Building automation system: Through various detection and execution devices connected with field controllers, it can detect, monitor and control various environmental parameters inside and outside the building and the working status of various equipment inside the building (such as air conditioning, water supply and drainage, lighting, power supply and distribution, elevator, etc.), and connect the field controllers through computer network, so as to reasonably divide the resources and equipment inside the building. The types and characteristics of distribution and management of weak current systems. Which company of Wuhan weak current system company is good to achieve the goal of comfort, convenience, economy and reliability?
Common Problems Responding and Computing Guidance of Corstal UPS Power Supply
Q: What's the difference between surge protector and Kosta UPS power supply?
A: Surge protectors only provide surge protection. In addition to providing surge protection, Kosta UPS power supply can continuously adjust the input voltage and provide backup power when power is off. It is common to plug in surge protectors on Kosta UPS power supply to provide additional surge protection and increase output sockets.
Q: How long do I need to run the Corstal UPS battery?
A: During the disconnection period, you need enough battery running time to shut down the system or switch back-up civil motors. You may also need to add external battery module (EBM) selectors to extend travel time.
Q: Our company is very small, and we can't say we need to take protective measures.  Do I really need to use the Corstal UPS power supply?
A: Power supply problems can happen at any time. Computers, servers and networks may be as important to your company as data centers for large businesses. Hardware damage due to downtime and possible loss of goodwill, reputation and sales staff will be very high. At the same time, if we restart the lock device, repair the damaged files or re-run the interrupted program, it will inevitably lead to a prolonged time. Therefore, the use of reliable power protection strategy is undoubtedly an economic guarantee measure.

Q：我应该使用多大容量的科士达UPS电源?

A：有鉴于未来扩容的需要，我们建议您安装一台使用容量维持在75%左右的UPS。另外，电池会随着时间慢慢降容，如果选型过大，会留下隐患。我们在科士达UPS电源在线选型工具中设了一个“已用容量”栏。

Q：如果减少科士达UPS电源负载，对电池运行时间有何影响?

A：减少科士达UPS电源负载可以大幅度延长电池的运行时间。一般来说，UPS的满负载运行时间为5分钟，而半负载运行时间为15分钟。

Q：如今电力质量何以如此重要?

A：如今，高科技的IT设备和控制装置对电气干扰更为敏感，它们对许多业务关键功能的作用比过去更加重要。因此，如今的电力质量问题发生更频繁，造成的损失也更惨重。

Q：电力质量问题较易察觉吗?

A：并非如此，很多情况下，电气干扰对电路和其它元件造成的破坏很难察觉，它也是造成设备过早发生故障和电脑锁死等问题的主要原因。如果电力质量得不到解决，将会导致销售额损失及资料丢失。

Q：不稳定的电力会对电话系统和IT设备产生怎样的影响?

A：电力波动会造成时间金钱的损失。如果客户将他们的电话系统(及其它电子设备)接入不稳定的电网，将极易遭受软硬件破坏、资料损坏和通讯中断的危险。更换设备耗费的时间和成本及在故障和更换期间造成的业务损失，将会严重影响公司的盈利能力。

Q：我们已经配备了发电机，还需要科士达UPS电源吗?

A：许多用户没有意识到发电机并不能保护其设备免受电源问题的干扰。你们需要科士达UPS电源来确保设备可以在转用发电机供电前依然可以维持运行---接通电发机到稳定供电一般需要几分钟。

Q：我需要多大容量的科士达UPS电源?

A：这取决于你要保护设备的总负载(单位：瓦)。需要预留10-20%的容量用于日后的扩容需要，从而确定你需要的最短运行时间。

Q：我已经有了浪涌保护，为何还需要科士达UPS电源?

A：浪涌保护并不能在断电时维持业务系统和电话系统的继续运行，而且浪涌保护器也无法改进供给昂贵敏感的电信设备的电力质量。科士达UPS电源能始终为设备提供理想、洁净的电源。长期过差的电力品质会造成设备性能降低。

Q：科士达UPS电源过载会怎样?比方说，受保护设备和/或负载的电流大于UPS供电的电流。

A：科士达UPS电源会将负载切换至旁路(约几分钟)，直至过载情况消除。如果过载情况持续，UPS会自动关闭。

Q：何以科士达UPS电源会过载?

A：有两种可能：(1)UPS规格选型过小(如额定负载为1200V，但却选择了1000VA的UPS);

(2)用户在UPS接入过多设备，超过设计指定数量。

Q：伏安(VA)和瓦特有何区别?

A：为了正确确定科士达UPS电源规格，了解瓦特和伏安(VA)的关系极有必要。首先，我们必须简要介绍一下电力术语。

有功功率(单位：W或瓦特)是产生能耗的那部分电功率。能耗量与电路中的电阻有关。电灯泡灯丝就是一种能耗类型。

无功功率(单位VAR或乏)是需要储存能的那部分电功率。储能和电路中的感情和/或容性设备有关。照相机充电闪光灯就是一种储能的例子。

视在功率(单位：VA或伏安)是有功功率和无功功率的数学关系。他们三者之间的几何关系如下图功率三角形所示：

使用下列公式，可以计算相关值：

W=VAXPF或者VA=W/PF

由于多种类型的设备其额定功率单位为瓦，因此在确定科士达UPS电源规格时考虑功率因数很重要。如果考虑功率因数，有可能会UPS选型过小。比如，一台设备的额定功率是525瓦，其功率因数是0.7，得出负载是750VA。

750VA=525W/0.7(PF)

当选择科士达UPS电源规格时会考虑其维持在75%容量的运行水平，那么最终会选择额定功率为1000VA的UPS(750VA/0.75=1000VA)

Q：怎样将瓦特值除以功率因数0.7。如1000瓦=1429伏安

Q：怎样将安培转换成伏安?

A：单相UPS：用安培值乘以伏特值(美国电压是120伏)。10AX120V=1200VA

三相UPS：安培训值X伏特值X1.732=VA

Q：单相电和三相电有何区别?

A：从发电站输出的交流电通常都是三相的。三相电源中任意一条相线和零线即时单相电源。我们日常中所有电脑和小型电气装置都是使用从标准10A或15A插座提供的单相电。大功率的工业马达或大型空调空调系统通常使用三相电，不能通过使用标准的10A或15A插座供电。

Q：不稳定的电力会对电话系统产生怎样的影响?

A：电力波动会造成时间金钱的损失。如果客户将他们的电话系统(及其它电子设备)接入不稳定的电网，将极易遭受软硬件破坏、资料损坏和通讯中断的危险。更换设备耗费的时间和成本及在故障和更换期间造成的业务损失，将会严重影响公司的盈利能力。

Q：集中式与分布式科士达UPS电源方案有何区别?

A：在集中式科士达UPS电源配置方案中，大型UPS从一处集中供电负载。集中国式UPS通常连接至配电盘。分布式UPS配置允许多台UPS为装置提供保护。分布式UPS通常使用插头和插座进行输入和输出的电源连接。

Q：我有一台3000VA的UPS，我能将该UPS直接插接标准15A壁装插座吗?

A：额定功率在1500VA以下的UPS需要使用标准15A壁装插座。1500V以上的UPS则需要使用更大规格的插座，而且必须由电工安装。

Q：为何电源管理软件如此重要?

A：尽管科士达UPS电源通常非常稳定可靠，但是否仍需要不间断的监控和支持。电源管理软件可以对电网、电池和电源以及UPS内部电子器件状况进行持续监控和诊断。科士达UPS电源软件和连接卡具有远程监控和管理功能，可以关闭电源及控制负载段。

科士达YDE2060    UPS电源

科士达YDE1200    UPS电源

科士达YDC9101S  UPS电源

科士达YDC9101H  UPS电源

科士达YDC9102S  UPS电源

科士达YDC9102H  UPS电源

科士达YDC9103S  UPS电源

科士达YDC9103H UPS电源

科士达YDC9106H  UPS电源

科士达YDC9110H  UPS电源

科士达YDC9106S  UPS电源

科士达YDC9110S  UPS电源

科士达YDC9310H  UPS电源

科士达YDC9315H  UPS电源

科士达YDC9320H  UPS电源

科士达YDC3310     UPS电源

科士达YDC3315     UPS电源

科士达YDC3320     UPS电源

科士达YDC3330     UPS电源