HIFA-V is full-automatic equipment for testing CT and PT characteristics. It can do below tests: CT volt-ampere characteristic test, PT volt-ampere characteristic test ,CT polarity test, PT polarity test , CT polarity & ratio test and PT polarity & ratio test. The device can automatically calculate the error curve of any point of CT, CT /PT ratio, etc.
1. This device use high-speed, high performance digital control processor as control microprocessor, for software it adopts double precision arithmetic to generate high precision wave form of each phase.
2. Adopts high-speed D/A converter, to ensure the precision and linearity of current , voltage at full scale.
3. Power amplifier uses imported, high power, high fidelity modular components to be power output, reasonable radiator structure designs, with enough power redundancy and thermal capacity.
4. The switching value input circuit can both connect dead contact and 0~250V potential contact.
5. Use 320×240 blue LCD as monitor.
6. There is one special adjustable DC power output, with 110V and 220V two gears, it can be the auxiliary power supply for field tests.
1. AC current output
accuracy: 0.5
phase current output (virtual value ): 0~40A
three parallel current output (virtual value ): 0~120A
phase current allowable working value (virtual value ): 10A
the maximum output power of phase current: 420VA
the maximum output power of three parallel current under maximum output: 900VA
the allowable working time of three parallel current under maximum output: 10s
frequency range( fundamental wave): 20~1000Hz
overtone order: 1~20
2. DC current output
accuracy: 0.5
current output: 0~±10A / phase,0~±30A / 3 in parallel
the maximum output load voltage: 20V
3. AC voltage output
output accuracy: 0.5
phase voltage output (virtual value ) : 0~120V
line voltage output (virtual value ) : 0~240V
phase/line voltage output power: 80VA / 100VA
frequency range( fundamental wave): 20~1000Hz
overtone order: 1~20
4. DC voltage output
output accuracy: 0.5
phase voltage output amplitude: 0~±160V
line voltage output amplitude 0~±320V
phase/line voltage output power: 70VA / 140VA
5. Switching value and time measurement
| HTWJB-3H | Note |
Switching value input | 7 loops | Dead contact: 1~20mA,24V Potential junction access:”0”:0~ +6V; “1”:+11 V~ +250V |
Switching value output | 2 pairs | DC:220V/0.2A;AC:220V/0.5A |
Time measurement | Measurement range:0.1ms ~9999s accuracy: 0.1mS |
6.Dimensions and weight
| HTWJB-3H |
Dimension | 400x300x180mm³ |
Weight | 22kg |
Power supply | AC 220V±10%,50/60Hz |
Temperature | -10-50 |