Question1: What is the Industrial frequency inverter characteristic?
Answer:
l Suitable for different kind of lower environment
l With strong load connecting ability
l Strong stability
l Output voltage stability
l With large dimension
l High efficiency
l More dissipation Output without load connecting
l 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 automatically
l 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 purchase
l Pure DC Input without AC Bypass , if without ac input , the inverter will stop working
l 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 automatic
l 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 inverter
Answer:
l Yes, it can
l Buyer should be confirm before purchase

Question 5: Does the High frequency inverter with output isolation transformer or not?

Answer:
l Yes
l All High frequency inverter with output isolation transformer

Question 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 purchase
l With perfect sound and indicatior alarm function

Question7: what is the max capacity can manufacture by YUCOO for High frequency inverter?
Answer:
l The max can make 40KVA
l 1-10KVA High frequency inverter , Can make 48vdc 110vdc 220vdc input
l 15-30KVA High frequency inverter, Can make110vdc 220vdc input only
l 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 output
2. 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 Input
DC Start up voltage range : 44Vdc～60Vdc
DC shut down voltage range : 42Vdc～60Vdc
l 110VDC Input
DC Start up voltage range : 95Vdc～150Vdc
DC shut down voltage range : 90Vdc～150Vdc
l 220VDC Input
DC Start up voltage range : 190Vdc～300Vdc
DC shut down voltage range : 180Vdc～300Vdc
l 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 weight
l 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:

Yes
l 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.