CVT Type Automatic Voltage Regulator
Product Introduction


Specially for high precision instrument

CVT Type Automatic Voltage Regulator is in small size, maintenance –free and service – free. It is highly adaptable to demand environment. Solid and durable resonance AVR has the following 10 advantages and will be the top choice for you in selecting AVR.



Determined CVT Type AVR


Total insulation between input and output


Output wave is sine wave and is not affected
by input waveform


Best noise filtering function (higher than 60 db).
Best resistance to thunder strike, noise, electrostatic
and high voltage pulse

Fortified CVT Type AVR


Wide Range Input Voltage


No electronic controlled circuit, only made up
with 2 independent element. Excellent voltage
regulation function and probability of mis-action is zero


Under drastic rise or drop of input voltage (±45%)
output voltage will be steady at ±2.5%

Most durable CVT Type AVR


Perfect Protection


Simple structure, excellent durability, extremely
long MTBF-30 years overseas, in Taiwan, has
been in service since 1973 (20 years warranty for the main body)


Uninterrupted Power Supply (UPS) characterized,
power off 1-2 cycle (3/4 load) has not effect on output

Delicate designed CVT Type AVR


AVR main body generates no noise


Output end short circuit or overload, current will
be limited automatically and is ready for use when
when short circuit or overload is excluded (short
circuit for 24 hours will not cause any damage)


The main body is ultra-insulated transformer
that prevents peak wave, sink wave and high/low
frequency and has best interference fending
ability (more than 60db)

Excellent Response Time


Viable Application


Response Time is extremely rapid and is within 1.5 cycle  


Input voltage 110V or 220V
Output voltage can have 110V/ 220V at the same time


Electronic Test
R&D Instrument Optoelectronic
Industrial Computer Audio Equipment


Function Description:


Insulated Output
from Input
High Insulation
Main Body CVT
Switching Freely
110V and 220 V
Elegant Appearance
Solid and Durable
Top Level AC

Best noise filtering
ability allowing
excellent resistance
to thunder strick,
noise, electrostatic
and high voltage

Use laminated insu-
lated material and re-
peated impregnated
main body and has
durability of more
than 20 years

Input and output vol-
tage can be changed
per needs

Made up only with
CVT and capacitor,
without electronic
element and is with
ultra high MTBF
Use top brand AC
capacitor and can
be interchanged
with magnetic
energy and electric
energy of CVT


Model & Specification:


Model No. (ELA-) 105 110 120 130 150
Capacity (KVA) 0.5 1 2 3 5
Voltage A  :1ψ 2W 110V 60Hz
B  :1ψ 2W 220V 60Hz
B-5:1ψ 2W 220V 50Hz
(From 2KVA to 5KVA, the output are 1ψ 3W 110-0-110V)
Input Range +15%~-20%
Input Voltage Fluctuates
Output Accuracy ±1%, while input voltage within +15% ~ -20%±1.5%
±1.5%, while input voltage and load changed at the same time
±2.5%, while input voltage within ±45% (3/4 Load)
Output Voltage Fixed Inside without electronics circuit, to avoid mis-adjusting and make output voltage inaccurately
Response Time <1.5 cycle
Distortion SHD:<3%  THD:<5%
Noise Filter 60db
Efficiency ≧90%
Protect Device Short circuit or overload will have current limited automatically
(not auto trip and cut off the power design)
Environment Temperature: -20℃~50℃  Humidity: 0%~95% (non-condensing)
Dimension WxHxD (cm) 21x19x35 27x46x49

User manual  

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