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HZ-3220S

Transformer DC Resistance

Tester

User Manual

Huazheng Electric Manufacturing (Baoding) Co., Ltd

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Summary of Contents for HZ-3220E

Page 1: ...0 HZ 3220S Transformer DC Resistance Tester User Manual Huazheng Electric Manufacturing Baoding Co Ltd ...

Page 2: ...nual 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 instrument If you are satisfied with this instrument please tell your colleagues if you are not satisfied with this instrument please call 0312 6775656 to tell you to serve you at all times Baoding Huaz...

Page 3: ...1 Contents I Overview 1 II Precautions 1 III Performance characteristics 2 IV Main technical indicators 2 V Instructions 2 VI Test and wiring method 7 VII Precautions 9 VIII After sales service 9 ...

Page 4: ...test accuracy and simple operation which can realize the rapid measurement of transformer direct resistance The HZ 3220S DC resistance tester is specially designed for temperature rise measurement of three core five column large transformers The charging and measurement speed is fast and it can meet the time requirements of the transformer temperature rise test Dual channel measurement real time s...

Page 5: ...iability 4 Horizontal structure convenient for on site operation of transformer factory 5 With sound discharge alarm and clear discharge indication reduce misoperation IV Main technical indicators 1 Output current 15mA 1A 2 5A 5A 10A 20A 15mA 1A 15mA 2 5A 15mA 5A 15mA 10A 2 Range 200μΩ 2Ω 20A 400μΩ 4Ω 10A 800μΩ 8Ω 5A 2mΩ 16Ω 2 5A 4mΩ 40Ω 1A 10Ω 20kΩ 15mA 3 Accuracy 0 2 2 words 4 Resolution 0 1μΩ 5...

Page 6: ... 1 The grounding pole is used for the grounding of the instrument shell and is a protective ground 2 Power supply 220V alternating current input port power supply to the whole machine power supply specification AC220V 10 50Hz 3 I1 I1 large current output terminals 4 I2 I2 15mA current output terminal 5 V１ V１ Channel 1 voltage input terminals 6 V２ V２ Channel 2 voltage input terminal 15mA voltage in...

Page 7: ...ses 15mA and the low voltage side uses the high current gear Channel selection Press the two buttons and B to select between channel 1 channel 2 dual channel Press the two buttons and to select the high voltage phase Press the two buttons and to select the low voltage phase The temperature rise time can be selected between 15s 30s 45s 60s by pressing the two buttons and B The converted temperature...

Page 8: ...ace displays as follows C Test result the display interface is as shown in the figure below Press the Local Storage button for data storage Press the U disk copy button to store in U disk Press the Print Data button to print the test results Press the Exit Test button to exit the test and return to the boot interface D ...

Page 9: ...rompt Enter the measurement interface E Press the Data Query button to enter the interface as shown in the figure below Press the U disk copy button to store in U disk Press the Back to Homepage button to exit the data query interface and return to the boot interface Press the Print Data button to print the current group data Press the two buttons to query the previous and next data Press the Memo...

Page 10: ...are automatically printed according to the selected temperature rise time VI Test and wiring method The connection between the machine and the test product connect the test product to the test terminal of the machine through a dedicated cable and the connection is firm and the ground wire is connected a The wiring method of single channel measurement is shown in the figure below 1 V2 I2 a b c Sing...

Page 11: ... measurement of high voltage RAO low voltage Rac wiring diagram c Refer to the figure below for the wiring of the magnetic assist method applicable to Y N d 11 connection group I2 I2 a b c Wiring method for measuring low voltage Rac and high voltage RAO I1 V1 V1 I1 V2 V2 O C B A I1 V1 V1 I1 V2 V2 O C B A ...

Page 12: ... of the high voltage coil is added to the entire test loop which should be included when selecting the range If the output current cannot reach the set value or the output current is unstable if the range is exceeded 5 When the short contacts of the three wires of the magnetic assist method are removed after the discharge is completed there may be residual current and may spark and discharge when ...

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