HTWJB-3H Microcomputer Relay Protection Tester - HTWJB-3H

relay protection tester, three phase replay protection calibrator, microprocessor relay protection calibrator.

This product designed based on Protection and Tester technique of microprocessor and customers suggestions, summarize the advantages of similar products, fully used modern microprocessor technique and components to be a new, small, microprocessor relay tester. Built-in high-speed digital control microprocessor, real 16 bits DAC modular , equipped with LCD and rotating mouse , can make most of the tests, if connects with computer , it will be with strong operating functions. It is small in volume, high precision.

Products features

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

6.Dimensions and weight