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Huazheng HZJB-1200 OEM Portable secondary Current Injection  tester 6 Phase Relay Protection Tester

Six phase voltage and six phase current can be output, which has made it is possiable to be any combition, such as the output mode of the combination of conventional four phase current and three-phase current, six phase voltage mode, six phase current mode and 12 phase output mode. It not only can be compatible with the traditional way of various tests, but also can conveniently carry out differential test of three-phase transformer.

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    Device Features And Technical Parameters

    Operation mode

    The device is directly connected with a computer or a desktop computer, which is convenient and efficient and stable performance.

     A new hi-fi linear power amplifier

    The output port has always insisted on using the modular linear power amplifier instead of the switching power amplifier, which has the high fidelity and high reliability function and excellent performance. High-mid frequency will not be produced to disturb the test, also ensure the smoothing accuracy of waveform produced by the whole course of the high current to the tiny current is excellent.

     High performance Mainframe

    The output part adopts DSP control, which has fast operation, real-time digital signal processing capability, wide bandwidth and high resolution D/A conversion control. The output waveform has the features of high precision, small distortion and good linearity. With using a large number of advanced technology and precision components and materials and the structure of professional design, the device has the features of small volume, light weight, full function, easy to carry, boot can work, flow test is very convenient.

     Powerful software function

    It can complete all kinds of high automatic validation work which is large and complex. It can also conveniently test and scan protection setting, playback of fault, real-time store test data, display vector, online print report and so on. Besides, six-phase current can facilitate the test of three-phase differential protection.

     Independent DC power output

    An 110V and 220V adjustable DC power is designed to supply output.

     Complete interface

    The device with USB communication port can communicate with the computer and other external devices.

     Perfect self-protection function

    With reasonable design of the heat dissipation structure and the reliable and perfect hardware protection measures, it has the power soft start function and the software of the fault self-diagnosis and the output latch function.

    Section 2 Nominal Parameter 

    Parameter

    Type

     

    Current channel number

    Standard six phase

    Voltage channel number

    Standard six phase

    AC current output range

    30A / phase or 180A (six phase parallel)

    DC current output range

    10A DC /phase

    AC voltage output range

    120V AC /phase

    DC voltage output range

    160V DC / phase

    Nominal parameter

    AC current output

    The real value of each phase output when six phase current output  030A    output precision   0.2 grade

    The real value of each phase output when three phase current output  060A

    The real value of six phase parallel current output                    0180A

    The allowed real value when the phase current work long time        10A

    The maximum output power of phase current                         450VA

    The maximum output power when six phase parallel current output      1000VA

    The allowed working time when six phase parallel current maximum output    10s

    Frequency rangefundamental wave)                 01000Hz

    Harmonic order                                                   020

    DC current output

    Current output            0±10A / phase       output precision   0.2 grade

    The maximum load volatage output                                 20V

    AC voltage output

    The real value of phase voltage output  0120V    output precision  0.2grade

    The real value of line voltage output                               0240V

    The output power of phase voltage/ line voltage                    80VA / 100VA

    Frequency rangefundamental wave                             01000Hz

    Harmonic order                                                   020

    DC voltage output

    The output amplitude of phase voltage  0±160V   output precision  0.2 grade

    The output amplitude of line voltage                                0±320V

    The output power of phase voltage/ line voltage                     70VA / 140VA

    Input and output

    8 channels input

    Free contact                                     120mA24V

    Electric potential contacts     “0”0 +6V“1”+11 V +250 V

    4 channels output                        DC220 V0.2 AAC220 V0.5 A

    Time measurment range

    0.1ms 9999s ,    measurement accuracy 0.1ms

      
    6 phase relay tester (3)6 phase relay tester (4)

    RELAY PROTECTION TEST ITEM INDEX

    The index is designed to guide the tester that all kinds of the relay protection device test can be done by the following series which modules of software.

    Relay test:

    Relay protection type

    Test Item

    Proposed test module

    Remarks

    Signal relay

    Corresponding test items

    DC Test

     

    AC and DC Test

    If the intermediate relay is required AC/DC hybrid input, please test in ‘The AC And DC Test ‘module.

    If Rated current of the signal relay is too small, please use the voltage loop output of tester to do experiments.

    Time relay

     

     

     

    Intermediate relay

     

     

     

    Coincidence relay

     

     

     

    Other DC voltage and current relay

     

     

     

    Current relay

    Corresponding test items

    AC Test

    The sequence component relay can be tested in the special sequence module of ‘AC Test’.

    The inverse time relay can be tested in the "It characteristics" module.

    Over (under) voltage relay

     

     

     

    Sequence component relay

     

     

     

    Synchronous check (or phase comparison) relay

     

     

     

    Inverse time current relay

     

     

     

    Differential relay

    DC magnetic feature

    Differential Relay, Differential Harmonic,

    AC/DC Test, Harmonic Test

    Please refer to ‘Appendix 5’ for correct wiring in the test

     

    Harmonic braking feature

     

     

     

    Proportional braking feature

     

    Differential Relay, AC Test

     

    Power (directional) relay

    Corresponding test items

    Power Direction &Impedance, AC Test

    Before testing the power (direction) relay, the type of connection and the action boundary of the protection should be determined in advance.

    Impedance relay

     

     

     

    Synchronous relay

    Corresponding test items

    Synchronization Test, AC Test

    UA, UC of tester is fixed as the system side and the side to side voltage output for ‘Synchronization Test’ module.

    Frequency relay

    Corresponding test items

    High-Low Frequency Test

    When the ‘automatic frequency conversion’ method is chosen in the single machine, the frequency slip value can be measured.

    Computer protection test:

     

    Relay protection type

    Test Item

    Proposed test module

    Remarks

    Line protection

    Multi-section over current

    Corresponding test items

    AC Test

    As long as the method is proper, the tests of most relays and microcomputer protection can be done by the ‘AC Test’ module, which should be selective learning.

     

    Over (under) voltage

     

     

     

     

    Sequence component voltage and current

     

     

     

     

    Frequency device

     

     

     

     

    Power direction protection

     

     

     

     

    Reclosing and tansform fault

    Corresponding test items

    Full Group Test, State Series, Comprehensive Test of Line Protection of 6-35 KV Microcomputer

    Requirement that if the Synchronization check and no-voltage check test is done, the Ux as the side and side voltage output and the tester is to use Ua instead of Ux for testing.

     

    Distance & Zero Sequence Protection,

    The Setting value verification of Distance & Zero Sequence Protection

    Distance & Zero Sequence Protection, Full Group Test, AC Test

    "Distance & Zero Sequence Protection” can automatically test multiple sections, various fault types and other distance and zero sequence value.

     

     

    Characteristic of Impedance

    Characteristic of Impedance

     

     

    Power frequency variation distance

    Setting value verification

    Distance & Zero Sequence Protection

    The fault current should be large enough, such as 10~15A (when CT is 5A)

     

    Compound voltage blocking(directional) overcurrent

    Over current, low voltage, negative sequence voltage, sensitive angle

    AC Test, Comprehensive Test of Line Protection of 6-35 KV Microcomputer

    Some of the protection of the "low voltage" and "negative sequence voltage" input by different terminal, replacing the wiring is necessary in the test.

     

    Low cycle, low voltage load shedding device

    Corresponding test items

    High-Low Frequency Test, Comprehensive Test of Line Protection of 6-35 KV Microcomputer

    If other conditions are satisfied, the device cannot move, please confirm whether the device also need to input current and switch contacts

    The generator transformer protection

    Differential protection

    Proportional braking characteristic

    Differential Protection, Differential Value, AC Test

    When the differential protection is used in the differential protection of generator, it can be regarded as the transformer protection with the connection type of Y/Y, high and low voltage side balance coefficient of 1.

    "Differential protection" module pay attention to the curve characteristic search and the "differential value" module focuses on the differential value test. Their combination can test the differential protection.

     

     

    Harmonic braking characteristic

    Differential Protection, Differential Value, Harmonic Test

     

     

    Loss of magnetic protection

    Corresponding test items

    AC Test

    The angle of output voltage and current should be paid attention in the test.

     

    Excitation protection

     

     

     

    Other protection

    Automatic quasi synchronization device

    Corresponding test items

    Synchronization Test

    To do the automatic adjustment test, the line must be in accordance with the requirements of instruction when testing the input.

     

    Busbar differential protection

    Corresponding test items

    AC Test

    Please see the instructions of the BP-2B and RCS-915 of "Nari part protection" on in the Appendix 6.

     

    Optical fiber line differential protection

     

     

    Before the test to determine whether the device to form a "self loop", if, then the protection of the action value should be equal to half of its set value.

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