Overview
All power used in Korea is 60Hz, so it is a frequency conversion device developed for those who are worried that the equipment imported from abroad is 50Hz.This product is a convenient device that can be used both AC 110V or 220V and 50Hz -60Hz by receiving AC 220V 60Hz KEPCO input. (The above DISPLAY may be changed during the manufacturing process.)
Operation description
The DC voltage converted from the 60 MHz power received from KEPCO to DC using the AC-DC converter is converted to 60 MHz or 50 MHz by the DC-AC inverter. At this time, the CTV built into the AVR creates clean sinusoidal waves with frequencies converted into waveform filters and is a collection of high-dimensional technologies with a constant voltage of ±1%.
DCV.M, Frequency Meter, AC VM, AM are attached to view the operation status, and as an LED lamp, the operation status of each part is displayed with a 50 Hz, 60 Hz transition mark.
Features
Use Place
Standard Specifications and Characteristics
| Capacity (KVA) | 2 | 3 | 5 | 7.5 | 10 | 15 | 20~50 |
|---|---|---|---|---|---|---|---|
| General specifications | |||||||
| Cooling method | Forced air-cooled type | ||||||
| Qualification for use | 100% continuous use | ||||||
| Control method | Full bridge radio rectification | ||||||
| Element for use | Bridge Diode Module | ||||||
| Inverter control method | High frequency pwm control method 20㎑ | ||||||
| St/sw cutting method | Non-pure synchronization reduction by pure semiconductors | ||||||
| Transformer insulation class | H species | ||||||
| Input voltage | |||||||
| Constant | One-phase three-wires | ||||||
| Rated voltage | Specified when purchasing 110v, 220v, 380v, 440v | ||||||
| Voltage fluctuation range | ±10% | ||||||
| Rated frequency | 50~60㎐ 0.5% | ||||||
| Power factor | 0.8 lag or higher | ||||||
| Output voltage | |||||||
| Constant | One phase two-wires; one phase three-wires; three phase three-wires The option should be designated when purchasing four-wire type |
||||||
| Rated voltage | Specified when purchasing 110v, 220v, 110v / 220v, 380v, 440v | ||||||
| Rated frequency | 50~60㎐ 0.5% | ||||||
| Voltage stability | Within ±1 to 2% | ||||||
| Transient voltage fluctuation | ±5% | ||||||
| Transient voltage response rate | 50 %-100% sudden load when returning within ±2% within 50ms | ||||||
| Output voltage variable | 1 phase 80–270v, 3 phase 200–380v | ||||||
| Waveform distortion | Tdd within 3% | ||||||
| Overload tolerance | 125% (10 min withstand) / 150% (1 min withstand) | ||||||
| Power factor | 0.8 LAG | ||||||
| Sound | 55 db or less | 60 db or less | |||||
| Comprehensive efficiency | 83% or more | 85% or more | 88% or more | ||||
| Output frequency | |||||||
| Frequency variability | 47~65㎐ | ||||||
| Frequency selection | Select 50/60 Hz | ||||||
| Indicating instrument | |||||||
| One output voltage |
DV1M(AC)-DIGITAL | ||||||
| One output current | DA1M(AC)-DIGITAL | ||||||
| One output frequency | DF1M(AC)-DIGITAL | ||||||
| Insulation characteristics | |||||||
| Insulation voltage | Apply for 1 minute with AC 1500v 60 Hz | ||||||
| Insulation resistance | 5v or higher when measured with DC 500v Megger | ||||||
| Temperature characteristics | |||||||
| Transformer flow | 125 degree or less | ||||||
| Other flows | 80 degree or less | ||||||
| Enclosure | |||||||
| Paint color | 5Y 7/1 | ||||||
