SPWM High Frequency Pulse AC Constant Current Source Width Pulse
Width Modulation
Product Information For AC Constant Current Source:
The AC constant current source adopts SPWM high frequency pulse
width pulse width modulation, IGBT realizes the output, can
modulate the output current and frequency, has a fast response
speed, high constant current accuracy, and long-term stable
operation. And it can overcome current changes caused by grid
voltage fluctuations, loop resistance changes, and product internal
resistance changes, without being affected by human factors; small
size, high efficiency, reliability and maintenance costs have
obvious advantages over traditional voltage regulators; mainly used
for testing and application of current thermal effects of specific
products, such as circuit breakers, fuses, thermal relays, magnetic
starters and other protective switches and various types of
transformers where thermal effects testing applied such as rated
current, operating current, short-circuit current, etc.
Feature For AC Constant Current Source:
1. Constant current, constant current adjustment range: 0-max.
value continuous adjustment.
2. Constant pressure, constant pressure adjustment range: 0- max.
value continuous adjustment.
3. Frequency conversion, frequency adjustment range: 47Hz-63Hz
adjustable, fixed gears 50Hz, 60Hz, 100Hz, 120Hz.
4. When using constant current and constant voltage, it can be
automatically cross-converted to maintain both control and
protection characteristics.
5. Provide measurement of root mean square voltage, root mean
square current, active power, frequency, etc.
6. Protection mode: over voltage, over current, overload, short
circuit, current limit, etc.
7. Input and output are isolated.
Technical Parameters For AC Constant Current Source:
| Mode | CCS1000 |
| Power | 500 VA |
| Working | SPWM (Sine Pulse Width Modulation) |
| INPUT | Phase | 1φ2W+PE single-phase two-wire + ground |
| Voltage | 127 V±10 % |
| Frequency | 47 Hz – 63 Hz |
| OUTPUT | Phase | 1φ2W+PE single-phase two-wire + ground |
| Frequency | 47 ~63 Hz adjustable (fixed gear 50Hz, 60Hz, 100HZ, 120HZ) |
| Voltage | AC 5V |
| Current | 0-100A |
| LED Display | Voltage Vrms, current Arms, frequency ,Power Wattage |
| Linear Regulation | 0 . 1 % |
| Load Regulation | 1 % |
| Harmonic THD | 2% (Pure resistive load) |
| Frequency Regulation | 0 . 01 % |
| Voltage Resolution | 0 . 1 V |
| Frequency Resolution | 0 . 01 Hz |
| Current Resolution | Output Io＜ 10 A: resolution:0 . 001 A; Output 100＞ Io≥ 10 A: resolution 0 . 01 A； |
| Measurement accuracy | Voltage | 0 . 5 % FS+ 5 dgt |
| Current | 0 . 5 % FS+ 5 dgt |
| Wattage | 0 . 5 % FS+ 5 dgt |
| Frequency | 0 . 01 % FS+ 5 dgt |
| Setting accuracy | Voltage | 1 % FS |
| Current | 0 . 1 % FS |
| I-LIM Set | O-Max Current |
| Protection | Over Current, Over Temp ,Over Load ,Short Circuit |
| Cooling | Fan forced cooling |
| Weight (kg) | 15 | 20 | 30 | 35 | 50 | 80 | 80 | 120 | 300 |
| Dimensions W×H×D( mm) | 430×133×370 | |
| Working Environment | 0 – 40℃, 20-90%RH |
