Huazheng HZ-139S User Manual Download Page 7

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IV.Working principle

The circuit is shown in the figure above, AC:380V power supply is input by UA, UB,

UC, UN, and regulated by TY voltage regulator, K

, K.

Control, T1A current lifter,

through the current transformer by Ia, Ib, Ic, In

High three-phase current output. After

transformer T2A, the fixed voltage is output to Ua, Ub, Uc and Un through electronic

protection.

ARM controller handles data display and control output of mouse and signal board.

Summary of Contents for HZ-139S

Page 1: ...HZ 139S Three Phase High Current Tester User Manual Huazheng Electric Manufacturing Baoding Co Ltd...

Page 2: ...l and operate and maintain the instrument according to the manual to prolong its service life Just a light press the test will be completed automatically is the operating characteristics of this instr...

Page 3: ...1 Contents I Overview 2 II Main performance indexes 2 III Panel and function description 2 IV Working principle 5 V Method of operation 6 VI Matters needing attention 7 VII Packing list 8...

Page 4: ...large current output is required for contact resistance II Main performance indexes 2 1 Input power supply THREE PHASE four wire AC380V 220V 20A 50Hz 2 2 Output current AC 0 300A 15V phase output cur...

Page 5: ...rminals This set of terminals outputs the 0 430V three phase voltage after voltage regulation Connect the terminals with a three core cable to the input socket of the voltage regulator of the hZ 139S...

Page 6: ...als This group of terminals outputs large three phase AC current which is 0 300A phase and the port voltage is 15V phase 3 2 6 Three phase voltage output terminals This set of terminals outputs three...

Page 7: ...d by TY voltage regulator KA K B K CControl T1A current lifter through the current transformer by Ia Ib Ic In4High three phase current output After transformer T2A the fixed voltage is output to Ua Ub...

Page 8: ...above first return the voltage regulator to zero and then plug in the 380V power supply if the field power socket is far from the use of power plate the cross section of the conductor should be no le...

Page 9: ...n the host and the output button indicates that the red light is on The voltage output at the fixed voltage is 58V At this point press the cut button to stop the voltage output VI Matters needing atte...

Page 10: ...regulator 1 3 Test facilities 3 4 Power input wire four core sheath 1 5 Voltage regulator input line with aviation head 1 6 Voltage regulator output line three core sheath 1 7 Voltage output line fou...