Shanghai DEMIKS Electric Power Technology Co.,LTD

DJB-421 Relay Protection Calibrator

Intelligent Voltage Withstand Testing EquipmentModel: DJB-421 Three Phase Relay...


Product Details

Product Tags

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


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