Related Manuals for Huazheng Electric Manufacturing HZ-2102
Summary of Contents for Huazheng Electric Manufacturing HZ-2102
- Page 1 HZ-2102 Zinc Oxide Arrester Comprehensive Tester USER MANUAL Huazheng Electric Manufacturing(Baoding) Co.,Ltd...
- Page 2 Dear Users: Thank you for choosing HZ-2102 Zinc Oxide Arrester Comprehensive Tester produced by Huazheng Electric Manufacturing(Baoding) Co.,Ltd. We hope this manual will provide you with the most detailed technical materials and helping information for your use of this product.
- Page 3 Important: 1.If the instrument is not in use, please turn off the power in time! 2.The rechargeable battery, as consumable part, ought to be well maintained. The effective capacity of rechargeable battery will fall gradually with time passing when the instrument is in use, which shortens the effective time of use.
- Page 4 collector should be more than 1 meter. Otherwise, the wireless signal of the instrument host can be saturated due to the over-strength of the wireless signal, thus the instrument host will be unable to receive the radio signal sent by the voltage collector.
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Page 5: Table Of Contents
Content 1 Overview............................1 2 Functions And Fearutres......................1 3 Technical Index..........................3 4 Measurement And Compensation Principle................4 5 Functions Of Panel And Components..................6 6 Operating Instructions........................9 7 Test Wiring........................... 21 8 After-sales Service........................24... -
Page 6: Overview
1 Overview HZ-2102 Zinc Oxide Arrester Comprehensive Tester is used to check the electrical performances of the zinc oxide arrester (MOA).The instrument is suitable for on-site inspection of zinc oxide arrester at all voltage levels, as well as the factory test and acceptance test in the library when power is failed.By measuring the full current and... - Page 7 more simple and flexible which can greatly reduce the work intensity of the field test personnel. The unique sensor board replaces the PT secondary voltage measurement technology, making the measurement safer and faster. Voltage collector integrated local display (128 × 64 dot matrix OLED LCD screen) and phase sequence checking function can display three-phase full voltage, voltage fundamental wave, three, five and seven times harmonic RMS, system frequency values and three-phase voltage phase difference.
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Page 8: Technical Index
3 Technical Index 3.1 Reference Voltage Measurement 3.1.1Reference voltage input range: 25V～250V RMS,50Hz/60Hz 3.1.2 accuracy of reference voltage measurement: ± (reading × 5% + 0.2V) 3.1.3 accuracy of voltage harmonic measurement: ± (reading × 10%) 3.1.4 reference voltage channel input resistance: ≥1500kΩ 3.2 Current Measurement 3.2.1Whole current measurement range: 0 ～... -
Page 9: Measurement And Compensation Principle
Fig.1 projection 4 Measurement And Compensation Principle 4.1 Measuring Principle The instrument adopts the projection method shown in Figure 1 to calculate the resistive current of the fundamental wave and each harmonic wave. Figure 1:U1 Reference voltage of fundamental wave Ix1p Full current peak of fundamental wave Ir1p Resistive current peak of fundamental wave Ic1p Capacitive current peak of fundamental wave... - Page 10 Fig.2 Interphase Interference When the three phases test the zinc oxide arrester arranged in-line at the same scene , as shown in Figure 2, due to the existence of stray capacitance, the current phase of A and C offset to B phase, and the general offset angle is 2°～4° or so, which will make phase A φ...
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Page 11: Functions Of Panel And Components
5 Functions Of Panel And Components 5.1 Host Panel Diagram And Interface Board Diagram Host panel diagram and interface board diagram are shown in figure 3. 5.1.1 Current input:phase A, B and C are three input channels, when measured in single phase, currents of phase A, B, and C are channeled from A. - Page 12 5.1.3 LCD screen: industrial grade 640 * 480 dot matrix high brightness color LCD screen, displaying operation menu, test data, waveform and so on. 5.1.4 Keys: Used for operating the instrument. "↑ ↓" refers to"up and down", used to move or modify the data; "← →" refers to the "left and right", used to move or modify the data;...
- Page 13 Fig.4 front panel of voltage collectorFig. 5 rear panel of voltage collector 5.2.3 Keys: Used for operating instruments. "↑ ↓" refers to "up and down",used to move or modify the data; "→" refers to "right",used to move or confirm the operation; and long press "→"...
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Page 14: Operating Instructions
1. Phase A voltage input; 2. Phase B voltage input; 3. Phase C voltage input; 2 3 4 4.Earthed 5.NC 5.2.9 Grounding Pole: During the test, the instrument must be earthed reliably. Connect the ground wire before connecting other test wires. After the test, the ground wire is removed to ensure personal safety. - Page 15 The keys and indicator lights of printer are integrated. When the printer is powered on, normally the indicator light keeps on, while the indicator light flasheswhen the paper is out. Press the key once, and the printer willfeed paper. When there is pink edge on the printed paper, it indicates that the paper is about to run out, please feed the printing paper in time.
- Page 16 test mode (and corresponding additional information), and the battery power of the instrument host. The bottom displays software version number, hardware version number and device number. The middle is the model name of the instrument and the optional function menu. Press the up and down keys to select the corresponding function menu;...
- Page 17 Fig.8 test parameter setting ● Test ID Number: Set the current test number. ● Device name:the number of the equipment being tested, which cannot be set. ● Test mode: The test mode can be wired, wireless and inductive. When choosing wireless test mode, the number at the right of the word "wireless"...
- Page 18 "Disable compensation": namely the compensation angle is 0°. When the reference phase is single phase, and it is different from the tested phase, the instrument automatically sets up the theoretical compensation angle, as shown in the table below. Tested Tested Phase B Phase C Phase ABC...
- Page 19 "Confirm” key to start the test process and enter the test data display screen. In addition, the instrument will save this parameter settings for the next time to use. 6.3.3 Test Data Display Screen Test data display screen is divided into the following five ones: main test data, detailed test data, harmonic test data, waveform test data and parameter settings view.
- Page 20 Fig. 10 detailed test data screen Fig. 11 harmonic test data screen Fig. 12 waveform test data screen...
- Page 21 Fig. 13 parameter setting view screen ● This symbol is displayed during the test and blinks. ● This symbol is displayed when the test is paused and blinks. Click the "Test" key to enter the test state; click "Pause" key to enter the pause state; Under the test state, the instrument can only switch the display screen, but cannot save data, print,upload and perform other functions.
- Page 22 ● Ix: full current RMS,only including the fundamental wave and 3, 5, and 7 harmonics. ● Ixp: full current peak, namely the peak value of Ix. ● Ir: the resistance current RMS, including only the fundamental wave and the 3, 5 and 7 harmonic resistance currents.
- Page 23 interf conclusion worse medium good excellent ered 75～ 80～ 83～ Φ 0～74.99° 77～79.99° ≥88° 76.99° 82.99° 87.99° Note: this instrument has the automatic amplification function of the waveform, so the amplitude of the waveform cannot represent the corresponding data value. 6.3.5 Test Record Query Fig.
- Page 24 printed. The number before "00001/003" represents the saved number of the test record currently viewed, and the number after indicates the number of saved test records, and the instrument can hold up to 100 test records. Press“←→”key to switch the test record to view.
- Page 25 alarming phase sequence error, when the reference voltage is three-phase (collecting three-phase voltage at the same time), if the three-phase phase sequence is not positive, the alarm information will be displayed and an alarm tone will be sent out. If the voltage collector does not perform voltage measurement (voltage is less than 1V), after a period of time, the voltage collector will issue a prompt voice and prompt message, prompting the user to shut down the instrument.
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Page 26: Test Wiring
7 Test Wiring 7.1 Notes 7.1.1 Before testing, the instrument host and voltage collector should be reliable grounded (the host is grounded by the black clamp of the current test wire). 7.1.2 Current sampling:For single phase test, the current sampling should be input from phase A channel of the instrument host;and for the three-phase test, the current should be input from phase A, B and C respectively. - Page 27 transmission and reception. When the wireless signal is weak, the antenna direction can be adjusted appropriately to enhance the wireless signal. A suction antenna with extension cord can be used to improve the quality of the wireless signal under special circumstances.
- Page 28 Fig. 19 wiring diagram of wireless test mode (simultaneous measurement of three-phase) 7.4 Wiring Instructions Of Induction Test Mode The voltage collector is unnecessary to the induction test mode, the current sampling and the induction electric field sampling can be completed by the host. The induction plate should be placed on the base of phase B arrester, and the position should be symmetric with the arrester of phase A and C, and the sensor plate is perpendicular to the arrester of phase B.
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Page 29: After-Sales Service
8 After-sales Service 8.1Product warranty forms are provided for the products of our company. Please check and fill out the warranty form on the spot when ordering goods for delivery. 8.2From the date of purchase, the maintenance fee will not be charged during the warranty period.
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