進口Power-Sonic工業蓄電池PS-1223 12V2.3AH

進口Power-Sonic工業蓄電池PS-1223 12V2.3AH

　　Power-Sonic一直是主導力量在電池業務超過46年。由于我們的承諾我們公司蓬勃發展提供高質量的成本有效的電池,支持水平的服務是的。

　　我們驕傲我們的靈活性和能力迅速采取行動為市場帶來新的行業產品。我們很自豪持有ISO 9001認證覆蓋我們的組織的各個方面。

What is the pulse cranking amp rating (PCA)?

Unlike CCA and MCA the pulse cranking ampere (PCA) rating does not have an "official" definition; however, we believe that for true engine start purposes, a 30 second discharge is unrealistic. With that in mind, the PCA is a very short duration (typically about 3 seconds) high rate discharge. Because the discharge is for such a short time, it is more like a pulse.

What is the Amp Hour (Ah) rating?
An amp-hour is one amp for one hour, or 10 amps for 1/10 of an hour and so forth. It is amps X hours. If you have something that pulls 20 amps, and you use it for 20 minutes, then the amp-hours used would be 20 (amps) X .333 (hours), or 6.67 AH. The accepted AH rating time period for batteries used in solar electric and backup power systems (and for nearly all deep cycle batteries) is the "20 hour rate". This means that it is discharged down to 10.5

從以上的比照能夠看出,IGBT、二極管、電感等的損耗是UPS損耗的大頭,要想提升UPS的效率,一方面需求從降低這些器件損耗動手,另一方面,能夠選擇更優的拓撲構造。

3 如何降低UPS損耗

(1)降低器件損耗

高頻UPS所用的半導體器件主要為IGBT、二極管以及MOSFET。由于本身構造和工作特性不同,器件損耗構成各有不同。

①IGBT

IGBT的損耗由導通損耗和開關損耗構成。

導通損耗等于導通電流ICE和正導游通壓降UCE的乘積

開關損耗分為開通和關斷損耗,能夠用單次通斷的能量損耗(Eon或Eoff)乘以開關頻率Fsw來表示  

降低IGBT損耗需求選擇導通壓降低、開關損耗小的型號。由于通常導通壓降低和開關損耗小無法同時選擇,所以需求判別實踐電路中導通損耗比擬大還是開關損耗比擬大,然后選擇收益zui大的一個方向選擇IGBT。

隨著半導體技術的開展,IGBT也逐步呈現高效化的趨向,新一代的IGBT通常比上一代損耗降低,所以優先選擇采用技術的IGBT也是降低損耗的一個常用手法。華為UPSU5000在整流和逆變電路上選擇了不同型號的IGBT以配合電路實踐工作特性,以求到達損耗zui小。

注:局部電路中IGBT的反并聯二極管也會產生損耗,選擇IGBT時也需求留意二極管特性。

②二極管

在UPS中會運用較多的功率二極管,依照電路工作的頻率,二極管分為高頻二極管和整流(工頻)二極管,兩種二極管的損耗略有差別,本文主要討論高頻二極管的狀況。

高頻二極管的損耗主要由導通損耗和開關損耗構成,導通損耗等于正導游通電流IF和正導游通壓降UF的乘積:

 
開關損耗主要是由二極管的反向恢復電流惹起的
 

式中,Udiode-REC為二極管的反向電壓,Ileakage-diode-REC為二極管的反向恢復電流。

二極管的總損耗為:

             
如上式所示,假如要降低高頻二極管的損耗,需求選擇導通壓降小和反向恢復快的二極管。

③功率電感

功率電感的損耗由磁芯損耗和線圈損耗組成。磁芯損耗分為磁滯損耗、渦流損耗和剩余損耗。UPS普通工作頻率不高,大局部在20kHz左右,磁芯損耗主要由磁滯損耗和渦流損耗構成,通常磁芯供給商的擬合損耗曲線會包含這些損耗。以CSC sendust26μ磁芯為例,圖8中給出了損耗的擬合公式,先計算出B,再代入工作頻率即可得到單位體積的損耗。降低B能有效降低磁芯損耗,即能夠選擇增大磁路截面積或進步頻率、降低工作電壓等措施來降低磁芯損耗。例如:以CSC鐵硅鋁26μ的磁芯為例,假如將磁芯的截面積增加25%,其他條件不變,則B會降低25%,磁芯損耗則會降低45%。

Sometimes ratings at the 6 hour rate and 100 hour rate are also given for comparison and for different applications. The 6-hour rate is often used for industrial batteries, as that is a typical daily duty cycle. Sometimes the 100 hour rate is given just to make the battery look better than it really is, but it is also useful for figuring battery capacity for long-term backup amp-hour requirements.

What is a MilliAmp Hour (MAH)?
MilliAmp Hour means how much current a battery will discharge over a period of one hour. Higher numbers here reflect a long battery runtime and or higher storage capacity. Higher MAH ratings do not necessarily reflect on speed but more on runtime. For example a 2000 mAh pack will sustain a 2000 milli amp (2 amp) draw for one hour before dropping to a voltage level that is considered discharged. A 1700 will sustain a 1700 mAh (1.7 amp) draw for one hour. 1000 mAH is equal to a 1 Amp Hour (AH) rating.

What is a VOLT?
A Volt is the unit of measure for electrical potential.

What is a WATT?
A WATT is the unit for measuring electrical power, i.e., the rate of doing work, in moving electrons by, or against, an electrical potential. Formula: Watts = Amperes x Volts.

What is a WATT-HOUR (Watt-Hr, WH)?
A WATT-HOUR is the unit of measure for electrical energy expressed as Watts x Hours.

What is an OHM?
OHM is a unit for measuring electrical resistance or impedance within an electrical circuit.

What is OHM'S Law?
OHM’S Law expresses the relationship between volts (V) and amperes (A) in an electrical circuit with resistance (R). It can be expressed as follows: V= IR Volts (V) = Amperes (I) x Ohms (R). If any two of the three values are known, the third value can be calculated using the above equation.

What is Electrolyte?
In a lead-acid battery, the electrolyte is sulfuric acid diluted with water. It is a conductor that supplies water and sulfate for the electrochemical reaction:

What is the proper electrolyte level?
Liquid levels should be 1/8 inch below the bottom of the vent well (the plastic tube that extends into the battery). The electrolyte level should not drop below the top of the plates.

PS and PSH-Series General Purpose used for :

• Emergency Lighting
• Burglar/Fire Alarms
• Data Centers
• Solar and Alternative Energy
• Portable Communications
• Wind Turbines
• Robotics

• Remote Monitoring
• Portable Video Equipment
• Portable Lighting
• Photographic Equipment
• Scientific Instruments
• Test and Measuring Equipment
• and much more...

PG-Long Life and PHR-High Rate Series used for :

• Communication & ecom Systems
• UPS - Uninteruptible Power Supplies
• Power Station Applications
• Remote Monitoring
• Remote Area Power Generation
• Remote Access Devices
• and much more...

12th Oct 1995

New Version of Date code (Post July 2006):

Year / month / day (YYMMDD)
e.g. 070315 = 15th March 2007

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Can I use an AGM battery for my wheelchair?

You can use an AGM battery for your wheel chair; however, our cyclic Gel battery is more suitable for this application.

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Are they suitable for golf trolleys?

See Power-Sonic Gel range.

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Can I charge them upside down / at an angle?

Batteries can be charged at an angle but not upside down.

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How do I dispose of my old battery?

Your battery can be returned to Power-Sonic. Please see address details on our contact page.

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What should I do before replacing my faulty battery?

Before replacing your battery please ensure the charger is functioning correctly, as many battery failures are caused by faulty chargers.

Service

Power-Sonic is experienced and efficient in responding to customer enquiries, for any quantity of batteries. Our excellent record for accurate and timely delivery ensures buyers remain loyal to Power-Sonic.

Next-day delivery in the UK and 2-5 days for the rest of Europe, together with our commitment to tailor our service to our customer's exact inventory and service requirements, are also important factors in the longstanding and growing customer base we enjoy.

Our dedicated service team has a strong belief in building close relationships with our customers and in ensuring smooth handling of orders. At Power-Sonic, we prioritise accuracy and ensure appropriate advice is given to ensure complete customer satisfaction.

 兩電平逆變器（）；兩種逆變器驅動電阻，℃，理論計算表明，當的工作溫度，三電平逆變器比兩電平逆變器的效率更高，對效率提高當的應用。可以看出，更好的拓撲結構的選擇可以顯著提高效率。
（）采用模塊化降低系統損耗的
優勢組合的選擇如下：
需求擴張
模塊化的一大優點是，它可以擴展線，使得客戶不計劃系統的容量太大，可以達到在適宜范圍內，*效率點。
模塊冗余
系統的可靠性是客戶的一個重要指標。在一般

由于網頁資源有限，具體電池型號、參數、價格咨詢請致電。另外我們還為客戶提供技術咨詢服務，說出您的負載、延時時間等，我們會有專業的工程師為您提供ups電源、電池解決方案，讓您真正的后顧無憂！