Detailed Introduction Of Constant Voltage Transformer (ac Parameter Regulated Power Supply)

This Constant Voltage Transformer(CVT) integrates the advantages of isolation transformer, bidirectional filter, and wide-range voltage-stabilized power supply. It has input and output isolation and good anti-interference ability against 3rd to 13th harmonics, surge impact, spike pulse, lightning strike and other interference in the power grid. It has been widely used in aerospace, aviation, nuclear industry, railways, highways, hospitals, finance, securities, military industry, communications, public security, industry and mining, etc., which require higher reliability power supply. It is especially suitable for supporting instruments and equipment in power distribution lines with serious harmonic pollution in the power grid.

The quality of this series of power supply products has passed the inspection and product environmental test of the Aerospace Science and Technology Group (formerly the Ministry of Aerospace), and is a military-specific power supply.
Input voltage range: single-phase 220V±30% (154~286V) three-phase 380V±30% (266~494V)

Output voltage: single-phase 220V three-phase 380V

Input frequency: 50/60Hz±1Hz

Total harmonic distortion of output voltage: ≤3.5% (even if input square wave, noise, output is still sine wave)

Strain time: 20~40ms

Anti-interference ability: ≥50dB, has obvious suppression effect on each harmonic, 3rd to 11th harmonic suppression is as high as more than 90%)

MTBF ≥ 80,000 hours (more than 9 years)

It can suppress instantaneous power failure and grid flicker of ≤10ms, effectively protecting the security of computer data

No contact, no mechanical mechanism, no electronic control part (the whole machine is only composed of high-reliability transformers and capacitors)

Input and output isolation

This series of products are divided into four types: sine wave voltage stabilization type (output sine wave is more stable), sine wave anti-interference type (output sine wave is more anti-interference), enhanced type (output sine wave input voltage range is wider), trapezoidal wave rectification type (output trapezoidal wave rectification efficiency is higher)