DJB-421 Relay Protection Calibrator
Intelligent Voltage Withstand Testing Equipment
Model: DJB-421 Three Phase Relay Test Kit
Application:
DJB series microcomputer relay protection tester is a new small microcomputer relay protection testing instrument, manufactured referencing DL/T624-199 “microcomputer relay protection test device technology”, listening to the views of users, summarizing the advantages and disadvantages of the same domestic products, using modern advanced microelectronic technology and device.
Composition:
◆Satisfy all on-site test requirements.
◆Technical indicators fully meet the DL/T624-1997 “microcomputer relay protection test device technology” standard issued by the Ministry of electric power.
◆This device Windows XP system with recovery function, avoid system crash caused by the illegal shutdown or misuse.
◆Main control board uses DSF+FPGA structure, 16 bit DAC output, the basic wave can pro
duce weekly 2000 points of high density sine wave, greatly improve the waveform quality, and improve the accuracy of the test instrument.
◆The classic Windows XP operation interface, the man-machine interface is friendly, the operation is simple and quick.
◆Amplifier using high fidelity linear power amplifier, both to ensure the accuracy of the small current, but also to ensure the stability of the large current.
◆With GPS synchronous test function. The device can be built in GPS synchronous card, connected with the PC machine through the RS232 interface, to achieve synchronous test switch of two test sets in different places.
Specification:
AC Current Output | |
Parameter | Specification |
Phase current (RMS) | 0~40 A, Precision: 0.2% |
3-phase parallel current (RMS) | 0~120 A |
Long-time phase current | 10 A |
Max. output power (phase) | 450 VA |
Max. output power (3-phase parallel) | 900 VA |
Max. permitted time (3-phase parallel) | 10 s |
Frequency range (fundamental) | 0~1000 Hz |
Harmonic times | 0~20 |
DC Current Output | |
Parameter | Specification |
Current output (per phase) | 0~±10 A, Precision: 0.5% |
Current output (3-phase) | 0~±30 A |
AC Voltage Output | |
Parameter | Specification |
Phase voltage (RMS) | 0~120 V, Precision: 0.2% |
Line voltage (RMS) | 0~413 V (external adaptor) |
Output power (phase/line) | 80 VA / 100 VA |
Frequency range (fundamental) | 0~1000 Hz |
Harmonic times | 0~20 |
DC Voltage Output | |
Parameter | Specification |
Phase voltage range | 0~±160 V, Precision: 0.5% |
Line voltage range | 0~±320 V |
Output power (phase/line) | 70 VA / 140 VA |
Digital I/O & Timing | |
Parameter | Specification |
Digital inputs | 10 channels |
Digital outputs | 8 channels |
Time measurement range | 0.1 ms ~ 9999 s |
Measurement accuracy | <0.1 ms |