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19inch Rack Mount Type DC-DC Converter FAQ (2)

Click: 492    Date: 09/07/2022 4::49::21 PM

Question ：what is the application of the dc dc converter?Answer 1. DC-DC converter is widely used in the area of communication and electricity.2. This product is mainly designed to meet the need of the requirements of all kinds of communication devices. Question . What is the working way of DC DC converter?Answer:1. Working whole-day when in rated current Question：What kinds of protection function of our DC DC Converter?Answer:1. Input overvoltage protection2. input under voltage protection3. output overvoltage protection4. over-current protection5. short circuit protection. Question ：Can add RS485 communication protocol。Answer:1. Yes.2. But need to remind the technical staff Question : What we should note when we connect or use the DC DC converter?Answer 1. it must ensure that the dc input Power off when the process of dc injection.2. DC line terminal contacts and other places that unnecessary naked, have to fully insulated.3. Before electricity must be grounded.4. It is strictly prohibited that to do high pressure, direct current (dc) operating in thunderstorm weather Question：When will cause the fault indicator light up?Answer:when the output voltage and input voltage abnormal (Output over voltage alarm, input undervoltagealarm) Question ： What is the MTBF(Mean Time Between Failures) of dc converterAnswer 1. MTBF≥100K hours2. High reliability, simple and convenient maintenance Question : What are the unique characteristics of rack mount DC-DC converter?Answer1. Cooling method: internal air cooling mode, with low noise.2. Different protection function, with input over voltage, input reverse polarity protection; output overvoltage, over temperature protection, output over-current, short circuit protection.3. High reliability: MTBF≥100K hours, high reliability, maintenance simple and convenient.4. EMC characteristics: Complies with EN55022 CLASS B class standard; meet IEC61000-4 LEVEL 3 standards.5. With input, output and alarm function normally indicates instructions. Question : how to definition the model number for rack mount dc converter? Answer 1. Mode : YK-DD [ VV ] S [ vvaa ]. For Example : YK-DD48S24102. YK-DD --- YUCOO Company DC Converter series3. VV--- Input rate DC Voltage .4. S--- Convert function / Single phase output5. vv---Output range DC Voltage6. aa---Outpur rate current Question : what does the rack mount type of dc converter will apply for ?Answer 1. All of the rack mount design is N+1 module structure2. Each DC modules can work in automatic equal current, can be set up for the telecommunications, electricity and wireless base stations. Question :  what is the max capacity of each module of rack mount dc converter?Answer 1. The max capacity of dc module we design is 500w2. That is to say, 48vdc output , the max current is 10A , 24VDC output , the max current is 20AOne of rack mount dc converter , it can made up by 6pcs module

Optional functions of adjustable dc power supply

Click: 494    Date: 09/07/2022 4::47::28 PM

1.0-5V/0-10V/4-20mA analog signal interface:Corresponding to external control output voltage and current (also can be independent external control voltage or current);2.0V/5V switch signal interface:When the input is 0V, the output is normal; when the input is 5V, the output is off;3.Failure dry contact interface:When it is normal, it is closed; when it is faulty, it is disconnected;4.0-5V/0-10V analog signal readback interface:Read back output voltage and output current (also can read back voltage or current separately).

Why Choose Pure Sine Wave Power Inverter ?

Click: 488    Date: 09/07/2022 4::44::55 PM

Let us first understand the basics before you choose an inverter for your specific requirement. You buy an inverter as a substitute for the grid power; when the power fails, you want the same kind of electric power to run your appliances. A pure sine-wave inverter supplies power that is of the same kind as that supplied by the grid. So, your reasons for choosing the right inverter would be: Minimising power loss so that your electricity bill does not go up. Remember that inefficient power backup will impact your electricity bill. A pure sine-wave is the most efficient in the conversion of stored power (in batteries) to alternating current for your appliances.Minimising the risk of damage to sensitive appliances that arises from modified sine-wave. This graphic representation (you need not spend too much time trying to understand it) of a pure sine wave—it is shown as a dark black line—shows you the smooth change-over. In a sine wave, the voltage rises and falls with a smoothly changing phase angle and also changes its polarity instantly when it crosses 0 Volts. In a modified sine wave, the voltage rises and falls abruptly, the phase angle also changes abruptly, and it sits at 0 Volts for some time before changing its polarity. Thus, any device that uses a control circuitry that senses the phase (for voltage/speed control) or instantaneous zero voltage crossing (for timing control) will not work properly from a voltage that has a modified sine wave-form. Advantages of sine-wave inverters for commercial establishmentsThe output wave-form is a sine-wave with very low harmonic distortion and clean power like utility-supplied electricity—essential for your expensive equipment.Inductive loads like microwaves and motors run faster, quieter and cooler. Pure sine-wave reduces audible and electrical noise in fans, fluorescent lights, audio amplifiers, TV, fax, and answering machines. It prevents crashes in computers, weird print outs and glitches in computer monitors.Imagine the impairment to performance, as well as customer dissatisfaction from the noisy, distorted running of sensitive appliances, which you could experience with the wrong choice. For example, you would be well-advised to choose the STATIC range from Genus as the much superior alternative to any commercial UPS. The output power is the pure sine wave, purer than the power supplied from the grid, thereby ensuring the total safety of home and office appliances. Genus STATICA also possesses various modern features which ensure quiet, hassle-free performance for years, and substantially longer battery life. A much superior alternative to gensets, the Static UPS from Genus allows computers, sensitive equipment like air conditioners and other high load capacity appliances to function safely during power cuts. For heavy-duty applications, Genus inverters are regulated and stabilized for Pure Sine Wave Output. This powerful machine is a complete power generation system that is suitable for all types of commercial establishments and is capable of running everything from lights to air conditioners and lifts to elevators, in a most cost-effective manner. It supplies pure power equivalent to the power supplied by the grid and is 100% safe to run the most sophisticated, expensive and sensitive office equipment without pollution. The seventh—and most significant—the reason is the total cost of ownership concept. This calls for calculating your savings in monthly electricity bills and adding the savings (over the medium to long term) in the replacement cost of expensive equipment. By now, you have understood the reasons why a pure sine-wave inverter protects equipment, thereby extending its life. So, keep the above points in mind and choose carefully and wisely.

12V 24V DC-AC inverter --FAQ（1）

Click: 503    Date: 09/07/2022 4::38::05 PM

      12V 24V DC-AC inverter --FAQ（1） Question 1---Does the inverter connect with solar system ?  Answer；l Yes.2 Because of the unique feature which combine invert, charge and AC auto-transfer switch into one complete system, inverter not only connect with solar system, also could be used in officer equipment, household items, power tools and etc. Question2:Does you inverter is off-grid or grid tie?Answer:l All of our inverter can customized is off-grid at present. Question 3: Does this kind of inverter has battery charger function?Answer:l No.2 If need, please choose our YK-W7 series. Question 4: All inverters are the transfer type of DC to AC?l Yes2 Inverters are the type of DC to AC.3 According to customer’s requirement.The AC output can be made such as 110V/120V/220V/230V/240V/380V.400V/415V Question 5: How many kinds of output wave form for inverters?l Two kinds. Pure sine wave and modified sine wave.2 Pure sine wave inverter could provide high quality AC and carry various loads, while it requires high tech and high cost.3 Modified sine wave inverter load poorly not carrying inductive load, but the price is moderate.

12V 24V DC-AC inverter --FAQ（2）

Click: 510    Date: 09/07/2022 4::37::09 PM

Question 6: How to choose suitable inverter?Answer:l If your load is resistive loads, such as: bulbs, you can choose a modified wave inverter. But if it is inductive loads and capacitive loads, we recommend using pure sine wave power inverter.l  For example: fans, precision instruments, air conditioner, fridge, coffee machine, computer, and so on. Question7: How do I choose the suitable capacity /power of the inverter?Answer:l Different types of load demand for power are different. You can view the load power values to determine the size of the power inverter.Notice: Resistive load: you can choose the same power as the load.  Capacitive loads: according to the load, you can choose 2-5 times power.  Inductive loads: according to the load, you can choose 4-7 times power.  Question 8:Does the output voltage of our inverter stable ?Answer: Absolutely. Our inverter is designed with a good regulator circuit. You can even check it when measuring the true value by a multimeter.  Actually the output voltage is quite stable. Here we need make a especial explanation : many customers found it is unstable when using conventional multimeter to measure voltage. We can say the operation is incorrect. Ordinary multimeter can only test pure sine waveform and calculate data Question 9:What should be noticed when installing inverter?Answer: Put the product in a place where is well ventilate,cool, dry and water-proof.  Pls do not stress and do not put foreign objects into the inverter. Question10. Does this kind of inverter has LCD display?Answer: No.If you need big quantity,can customize according to your request.

DC DC Converter --FAQ

Click: 499    Date: 08/30/2022 4::13::19 PM

Question: Regard as constant voltage and constant current DC-DC ConverterAnswer:    Constant voltage DC-DC ConverterFor example:1.      24vdc-12vdc 10A, 12vdc output is fix, but the current output is automatic adaptive base on the load.2.       If you connect the load not work at 12vdc , the dc converter will be burnB.      Constant Current DC-DC ConverterFor example:1.       24vdc-12vdc 10A , 10A output is fix, but the voltage output is automatic adaptive base on the load.2.       If you connect the load not work at 10A , the dc converter will be burn Question: Isolated & non-isolated DC-DC ConverterAnswer:1.         Isolated DC Converter is no any interference, it is suitable for sophisticated equipment and there is no any ripple2.         Isolated DC Converter with ripple3.         DC –DC Converter we design is non-isolated Question: Step down & Boost & Automatic Step down and Boost DC-DC ConverterAnswer:1.       Step down DC-DC Converter-- Input voltage must be more than 2V/more of output voltageFor example:24Vdc to 12Vdc 10A2.       Boost DC-DC Converter-- Input voltage must be less than 2V/more of output voltageFor example :5Vdc to 12Vdc 10A3.       Automatic Step down and Boost DC-DC Converter--- output voltage between the input voltage rangeFor example: 9-14Vdc to 12Vdc 10AWhen 9VDC Input, it can support output 12V; When 14Vdc input, it can support output 12Vdc also; input voltage between 9-14V constantly beating the same can be stabilized output 12V; Question:  Can you customize USB dc dc converter?Answer:  Yes.Question:  Can you customize multi-output dc dc converter?Answer:For now, because of the Yucoo dc dc converter’s design and it’s capacity, we can make 2-channels as max output. Question: What is the difference between the PCB case type and the Aluminum case type?Answer: Both are waterproof but PCB case type with Lightweight. Question: Can you make the dc dc converter with adjustable output voltage?Answer:  NO.  We can only make it stable output. Question: Can you make the dc dc converter with adjustable output current?Answer: NO. We can only make adjustable output current mode. For example one 0-10A model dc dc converter,  if you connect with right load, all things will goes well.No need to make stable output. Question : Can make Automatic Step up and down voltage dc converter?Answer:Yes.We can customize 12V-12V &24V-24V Automatic Step up and down voltage dc converter Question ：What is the biggest power you can customize for this small size dc converter now?Answer:  The biggest power we can customize for this kind product is not more than 360W. Question ：All of your dc converter is the same appearance?Answer:1.         The material has two different kinds: Aluminium and plastic shell2.         This two materials converter each has three kinds: large size,middle side,small size .different output power has different shellQuestion: Does the dc converter support running in full load?Answer：1.         NO , All of dc converter did not work in full load2.         The Efficiency≤80%3.         For example : Model YK-DD12S2412 --12VDC-24VDC 12A DC Converter , it can support running 240w 7*24hours Question: Does ALL of the dc converter with anti-interference filtration and TVS(1500w) function?Answer :Yes, All of the dc converter with anti-interference filtration and TVS(1500w) function Question: what does the step down and boost dc converter will apply forAnswer:1.         Our products are widely used in automotive, posts and telecommunications, communications, electricity, coal, aerospace, defense, surveillance systems, railway signals, medical equipment, instruments and meters, LED displays, cable TV and other fields. If you can not find a suitable model,2.         our technical engineers will be based on your actual needs, corresponding to the rapid power solutions. I hope that we can become a long-term partners. 

Industrial frequency inverter --FAQ

Click: 546    Date: 08/30/2022 4::06::39 PM

Question1: What is the Industrial frequency inverter characteristic?Answer:l Suitable for different kind of lower environmentl With strong load connecting abilityl Strong stabilityl Output voltage stabilityl With large dimensionl High efficiencyl More dissipation Output without load connectingl With large capacity output Question 2: Does the main input voltage and bypass input voltage can be switch in automatically or not for Industrial frequency inverter?Answer:l Yes, it switch the main input voltage and bypass input voltage in automaticallyl Achieve uninterrupted operating with load Question 3: The user can select the main input voltage for the Industrial frequency inverter?Answer:l Yes, There have 3 option , but buyer should be confirm before purchasel Pure DC Input without AC Bypass , if without ac input , the inverter will stop workingl DC main input and ac bypass. When there have ac and dc input at the same time , dc voltage have priority , when dc voltage cut off , it can switch to ac for input in automaticl Ac main input and dc bypass, When there have ac and dc input at the same time , ac voltage have priority , when ac voltage cut off , it can switch to dc for input in automatic Question4: can it make 3 phase output for Industrial frequency inverterAnswer:l Yes, it canl Buyer should be confirm before purchase Question 5: Does the High frequency inverter with output isolation transformer or not?Answer:l Yesl All High frequency inverter with output isolation transformerQuestion 6: Does the High frequency inverter with LED Display?Answer:l Yes, All High frequency inverter with LED Display and LCD Display for option , buyer should be confirm before purchasel With perfect sound and indicatior alarm functionQuestion7: what is the max capacity can manufacture by YUCOO for High frequency inverter?Answer:l The max can make 40KVAl 1-10KVA High frequency inverter , Can make 48vdc 110vdc 220vdc inputl 15-30KVA High frequency inverter, Can make110vdc 220vdc input onlyl 40KVA High frequency inverter, Can make 220vdc input only Question 8: Does the High frequency inverter with pure sine wave output?Answer:1. Yes pure sine wave output2. It is using pulse width modulation SPWM technology, the output for the stabilized voltage stability, filter out noise, low distortion degree of pure sine wave, waveform distortion less than 3%. Question 9: what does the High frequency inverter start up voltage range and shut down voltage range for 48VDC 110VDC 220VDC input?Answer:l 48VDC InputDC Start up voltage range : 44Vdc～60VdcDC shut down voltage range : 42Vdc～60Vdcl 110VDC InputDC Start up voltage range : 95Vdc～150VdcDC shut down voltage range : 90Vdc～150Vdcl 220VDC InputDC Start up voltage range : 190Vdc～300VdcDC shut down voltage range : 180Vdc～300Vdcl DC Start up voltage range and DC shut down voltage range can be customize according Question 10: what is the efficiency of High frequency inverter when it work in full load?Answer:Full load efficiency ≥99% (Work in city electric)Full load efficiency ≥85% (Work in invert statue)Question 11: what does bypass switch time for High frequency inverter?Answer:l Bypass switch time≤6ms Question 12: What is the advantage & disadvantage of high frequency inverter?Answer:l Advantage: Lower price, higher transfer rate, smaller size and weightl Disadvantage: if you want large capacity, the technology request is high. Question 13: How to choose suitable inverter?Answer:l If your load is resistive loads, such as: bulbs, you can choose a modified wave inverter. But if it is inductive loads and capacitive loads, we recommend using pure sine wave power inverter.l For example: fans, precision instruments, air conditioner, fridge, coffee machine, computer, and so on.Question14: How do I choose the suitable capacity /power of the inverter?Answer:Different types of load demand for power are different. You can view the load power values to determine the size of the power inverter.Notice:l Resistive load: you can choose the same power as the load.l Capacitive loads: according to the load, you can choose 2-5 times power.l Inductive loads: according to the load, you can choose 4-7 times power. Question 15 :Is the output voltage of our inverter stable ?Answer:Absolutely. Our inverter is designed with a good regulator circuit. You can even check it when measuring the true value by a multimeter. Actually the output voltage is quite stable. Here we need make a especial explanation : many customers found it is unstable when using conventional multimeter to measure voltage. We can say the operation is incorrect. Ordinary multimeter can only test pure sine waveform and calculate data Question 16:What should be noticed when installing inverter?Answer:Put the product in a place where is well ventilate,cool, dry and water-proof.Pls do not stress and do not put foreign objects into the inverter.Question 17: All inverters are the transfer type of DC to AC?l Answer:Yesl Inverters are the type of DC to AC.l According to customer’s requirement.The AC output can be made such as 110V/120V/220V/230V/240V/380V.400V/415V Question18:Does you inverter is off-grid or grid tie?Answer:l All of our inverter can customized is off-grid at present.

LCD inverter--FAQ

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Question 1: How long is the delivery time?Answer:Normal order will have a 2-7 working days delivery time after confirmed and payment. Question 2: Can the output socket be EU plug?Answer: yes. EU / US / AU /Universal & terminal output socket for option.Other plug please contact us. Question 3: Does OEM workable for us?Answer:Yes.Most of our product are accepted to meet your reqirement.Please ask the sale person for details. Question 4:Can we accept sample order?Answer:Yes, of course. Question 5: How can we guarantee quality?Answer: Quality is our lifeline. Our products are quality -proven with CE, Rohs certificates and always go through rigorous testing before shipment.That is why our customers keep coming back for more. Question 6：what other services can we provide?Answer:Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES；Accepted Payment Currency:USD,EUR,HKD,CNY;Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow.