The zinc oxide lightning arrester live tester is a specialized instrument used for on-site and laboratory testing of various electrical parameters of lightning arresters. It is widely used in on-site online monitoring (live testing) and laboratory testing (power outage maintenance) of zinc oxide lightning arresters. Comply with the national power industry standard "DL474.5-92 Implementation Guidelines for On site Insulation Test - Surge Arrester Test". This instrument adopts advanced technologies such as microcomputer sampling and control, and can measure the full current, third harmonic, resistive current, peak resistive current, capacitive current, active power, etc. of zinc oxide lightning arrester under power frequency voltage. And display the waveform of voltage and current and print out the test data. Adopting a large screen LCD display and Chinese character menu prompts for operation, it enhances the human-machine exchange function and provides on-site waveform display. This instrument has the characteristics of simple wiring, high measurement accuracy, and strong reliability. The instrument is small in size, lightweight, and designed for easy portability and field operations.

Functional Features

1This machine adopts800480 dot matrix65KTrue color large screen LCD, fully Chinese menu operation, easy to use,Display data clearly and easily readable.

2High precision sampling and processing circuits, advanced Fourier harmonic analysis technology, make data more reliable.

3The instrument uses unique high-precision sensors to directly collect input voltage and current signals,

4Has harmonic content testing function, can measure single-phase or three-phase simultaneously

5It has the function of outputting the peak value of the resistive current fundamental wave.

6The instrument is equipped with non-volatile memory. Can store a large amount of recorded data such as test data, waveforms, harmonics, etc

Rest. 30 sets of measurement records can be saved in a cyclic update mode.

7The instrument is equipped with a USB interface, which can store any set of test records (the capacity is affected by the size of the USB drive).

8The instrument voltage testing line is equipped with a safety anti misconnection wire, and the instrument voltage and current plug has anti misconnection function.

9The instrument is equipped with a wireless transmission module, which can perform wireless voltage acquisition and cooperate with the host for wireless measurement.

10The instrument is equipped with a high-precision real-time clock for date and time calibration.

11The instrument is equipped with a high-speed micro thermal printer that can print measurement data.

12、The instrument is equipped withRechargeable Battery、Can work continuously for 6 hoursCalendar clock, power down storageUDisk storage, micro printer.

Instrument panel structure and description

Figure 1

1Current input terminal; 6. Grounding terminal;

2Voltage input terminal; 7. USB interface;

3Charging input terminal; 8. LCD display;

4Switch (power on/off); 9. Wireless port;

5printer; 10. Press the button.

4 Zinc oxide testing and menu operation method

Connect the test cable, turn on the instrument power, and the display interface will appear

1 Zinc oxide testing method

Automatically enter after a few seconds of display on the interface in Figure 2Parameter settingsinterface

Start measurementNo matter where the cursor is, press the "confirm" button to start the measurement.

Operating instructions:Press the "left and right" keys to move the cursor and select menu items；The "→" key moves the cursor forward；The "←" key moves the cursor in the opposite directionPress the "Select" key to enter the menu item, and press the "Return" key to exit the menu item.

（1）Parameter setting:

◆ Numerical input: Press the "Select" key to enter the menu item, press "↑, ↓" keyTo change the size of input bit valuesPress "←, →"ENTERInput bit; Press the 'Back' button to exit the menu item.

◆ Parameter selection: Press "←, →" to move the cursor to the menu item, press "↑, ↓" The key changes the content of the input item.

（2）FunctionmenuSelection and Execution:

◆ Data browsing:Press the "left and right" keys to move the cursor and select“data processing”Menu, press the "Select" button again to enterData browsinginterface

◆ System settings:Press the "left and right" keys to move the cursor and select“System settings”Menu, press the "Select" button again to enterSystem settingsinterface

◆ Manufacturer settings:Press the "left and right" keys to move the cursor and select“Manufacturer settings”Menu, press the "Select" button again to enterManufacturer settingsinterface.

（3）Parameter description:

a) Line number: for storage or printing, it is recommended to set it before measurement.

b) Measurement method: according to←, →keyCycle through the options of 'wired/wireless/no PT'.

i. Wired measurement method: The voltage input is connected to the PT secondary terminal through a voltage test wire clamp, and the other end is connected to the 6-core HK socket of the instrument (voltage input terminal). Or connected through a voltage extension cable.

ii. Wireless measurement method: The voltage input is connected to the PT secondary end through a voltage test wire clamp, and the other end is connected to a 6-core wireless modulehkSeat (voltage input terminal).

iii. No PT measurement method: No voltage signal is connected, only current signal is connected.

Regardless of the measurement method, the current wiring method is the same,ABCThe crocodile clips for three-phase current wiring are connected in series with the tested zinc oxide.

c) PTTransformation ratio: The PT quadratic method can set a voltage transformation ratio Ku, which is multiplied by the amplitude of the reference voltage input by the instrument, affecting data related to voltage. Set appropriate PT ratio for wired and wireless modes,Can directly display the bus voltage.

d) Compensation angle: divided into "disabled compensation, manual compensation, and automatic edge compensation". When the compensation angle is set to 0 degrees, compensation is disabled; When the compensation angle is set to be greater than 360 °, it is automatic edge compensation; When the compensation angle is set to a value between 0 ° and 360 °, it is the current test angle compensation value.

e) Reference phase: ABC

ABCUse three-phase voltage as a reference (star connection), that is, connect the voltage and current correspondingly.

f）Phase to be tested: Press←, →keyCycle to select A phase/B phase/C phase/three phases.

Single phase measurement: A phase/B phase/C phase represents single-phase measurement:

APhase measurement: HS wiring clip input voltage and current;

BPhase measurement: Input voltage and current of green wire clamp;

CPhase measurement: Input voltage and current of red wire clamp;

Note: Wireless single-phase measurement is fixed as phase A.

◆ Three phase measurement: ABC represents simultaneous measurement of three phases, with ABC (yellow, green, and red) leads respectively inputting three-phase voltage and current.

Compensation angle explanation:

Disable compensation: Indicates that the compensation angle is 0.

Explanation 1: The compensation angle is always "added" to the current voltage angle. For example, if the compensation angle is 1 ° and the actual current leads the voltage by 80 °, then the compensated current leads the voltage by 81 °. The instrument assumes that the three-phase AC power is in a "positive phase sequence", that is, A leads B by 120 ° and B leads B by 120 °. For reverse phase sequence systems, the A and C phases of the reference signal and current should be used in reverse.

manual compensationThe instrument defines the angle between 0 and 359.99 degrees. All angles can be plus or minus 360 degrees, for example, 120 degrees and -240 degrees or 180 degrees and -180 degrees respectively represent the same angle. Attention: There must be a basis for compensating for what angle. To compensate for the impact of MOA on the AC phase in phase B, the angle is reduced by adding B without changing C.

Automatic edge compensationWhen measuring three-phase MOA, due to the interference between phases, the current phase of phase A and C must be shifted towards phase B

Direction deviation, usually at an angle of about 2 ° to 4 °, leads to an increase in resistive current in phase A and a small or even negative phase transition in phase C.

The principle of automatic edge compensation (edge phase compensation) is: assuming that the influence of B on A and C is symmetrical, measure the angle Φ ca at which Ic leads Ia. The compensation for phase A is Φ 0a=(Φ ca-120 °)/2, and the compensation for phase C is Φ 0c=- (Φ ca-120 °)/2. This method actually averages the resistive currents of phases A and C, but it may also mask the issue. Therefore, it is recommended to assess raw data without edge compensation.

The interference on site may be complex, and if reasonable compensation cannot be made, it is recommended to record the raw data without compensation and examine the trend of data changes.

After entering the relevant parameters, press the "confirm" button to measure. If the phase to be measured is three-phase, the measurement interface

The instrument enters the measurement interface, and the AD collects data and displays it. Press the "Cancel" button to display the next screen of test data (as shown in Figure 6); Press the "Confirm" button to lock the screen (lock the test data). Press the 'Cancel' button while the screen is locked to re measure; Press the "Print" button in the locked screen state to print; Press the "Store" button to store the test data (if a USB flash drive is inserted and a record is also stored on the USB flash drive); Press the 'Back' button to return to the main menu screen.

If the phase to be measured is single-phase, the measurement interface

：

Parameter description:Here, a single-phase full data image is used to explain the meaning of the data.

UReference voltageyxValue. Three phase voltage with subscripta/b/cdistinguish. It only contains the fundamental wave and3、5、7 Sub harmonic. PT ratio has been multiplied toUSet up the busbar in the middlePTThe transformation ratio will display the bus voltage.

U357Or U3U5U7: Voltage3、5、7 The relative content of subharmonics to the fundamental voltage, expressed in%.

IxFull current yx value. Three phase current with subscripta/b/cdistinguish. It only contains the fundamental wave and3、5、7Sub harmonic.

IrResistive currentyxValue. It only contains the fundamental wave of resistive current and resistive current3、5、7Sub harmonic.

IrpPeak resistive current, i.eIrThe peak value.

Ir1pPeak value of the fundamental wave of resistive current.Ir1p = Ix1p sinΦ

Ic1pPeak value of fundamental wave of capacitive current.Ic1p = Ix1p cosΦ

MOAThe full current contains bothMOAThe high-order harmonics generated by nonlinearity also include the high-order harmonics generated by bus voltage harmonics. giveIrpcompare withIr1pMore stable and authentic. Therefore, it is recommended to useIr1pAs a resistive current indicator.

ΦThe current leads the voltage angle, which already includes the compensation angleΦ0.

be careful: （1）Φexceed90°Ir1pNegative value, exceeding180°Ic1pIt is also a negative value.

（2）IfIxThe waveform is flat toppedp.

P1Fundamental power consumption.P1Equal to the fundamental wave of resistive currentyxValue and fundamental voltageyxThe product of values.

explain:KuShould be set asPTVariable ratio to obtain operating voltageMOApower waste.

Cx：MOACapacity. The calculation formula is as follows:Cx=Ic1/(2πfU1)

Ic1For the capacitive current yx value,U1It is the fundamental voltageyxValue,fIt is the frequency of the power grid.

Ir3p、Ir5p、Ir7p：3、5、7 Peak value of sub resistive current harmonics.

explain:Ir3p、Ir5p、Ir7pRelated to harmonic algorithm. thereforeIr、IrpBoth the resistive current waveform and the resistive current waveform are affected

The impact of harmonic algorithm. Please refer to the verification instructions section for details.

ΦCurrent lead voltage angle, which already includes compensation angleΦ0The instrument provides conclusions according to the table below

conclusion	inferior	differ from	centre	good people	excellent	interference
Φ	0～74.99°	75～76.99°	77～79.99°	80～82.99°	83～87.99°	≥88°

Note 1: The waveform displayed by the instrument is the collected gear signal, so do not use waveform amplitude to determine the size of the data.

Note 2: Without PT measurement, the UI angle is fixed at 83.5 degrees for easy calculation of resistive current.

Measurement wiring

1Key points of wiring:

1.1 The instrument host is grounded.

1.2 Take full current: connect single-phase MOA to channel A (yellow), and connect three-phase to channel A (yellow), B (green), and C (red).

1.3 Take reference voltage: ABC， Corresponding to A (yellow), B (green), and C (red).

1.4 There is a fuse on the wire connecting the PT voltage, do not use other specifications of fuses or wires instead.

1.5 The instrument can only be used for low voltage and low current testing, and all leads must be kept away from high voltage.

2Schematic diagram of wired transmission wiring

Three phase measurement: Three phase wired voltage, adding extension lines for wiring means connecting the opposite joints of the extension lines in series between the "host" and the "voltage PT connector".

Single phase measurement: (The host wiring and three-phase measurement wiring are the same, the difference in the wiring of the test sample is which phase is connected and which phase is not measured. The detailed wiring of each phase is as follows:

2.1 AFor phase measurement, the wiring clamps on the green and red wires of the current and voltage lines are suspended, and only the clamp corresponding to the yellow wire of phase A is connected.

2.2 BFor phase measurement, the wiring clips on the yellow and red wires of the current and voltage lines are suspended, and only the clip corresponding to the green wire of phase B is connected.

2.3 CFor phase measurement, the wiring clamps on the yellow and green wires of the current and voltage lines are suspended, and only the clamp corresponding to the red wire of phase C is connected.

VISystem settings and menu operation methods：

On the interface of Figure 3, press the "Select or Return" button to move the "Select Block" and selectAfter clicking the "System Settings" button, press the "Confirm" button to enter the system settingsInterface, as shown in the figure10；

On the interface of Figure 3, press the "Select or Return" button to move the "Select Block" and selectAfter pressing the "Manufacturer Settings" button, press the "Confirm" button to enter the manufacturer settings displayInterface;

On the interface of Figure 3, press the "Select or Return" button to move the "Select Block" and selectAfter clicking the "Data Browse" function button, press the "Confirm" button to enter the data browsing displayInterface, as shown in the figure11；

1System settings:Used for date and time settings, LCD backlight adjustment, etc, as shown in the following figure10As shown:

Among them, the 'Harmonic Angle Measurement' item is used to set the harmonic angle measurement measurement yx or invalid. Press the selection key to select the item, then press the "← →" key to proceed“yx”Invalid "selection.

Harmonic angle measurementyxMeasure harmonicsyxValue and harmonic angle.

Harmonic angle measurement invalid: only measuring the fundamental waveyxValue and angle, harmonic angle defaults to 0 degrees.

2Manufacturer settings:Used for manufacturer parameter settings, users cannot operate.

3Data browsing:Used to view test data,The following figure

The display method is the same as the testing interface,explain:

3.1 Press the "up and down" keys to view the test data one by one; Jump 10 sets of data forward and backward with the "left and right" keys to view.

3.2 Press the 'Print' button to print the currently displayed data.

3.3 Press the 'Store' button to save data to the USB drive.

II matters needing attention:

1．To use the instrument correctly, please read the user manual carefully.Connect and operate according to this manual.Our company shall not be held responsible for any losses incurred outside of the instrument due to non-compliance with the instructions.

2．The instrument complies with the "Electrical Equipment and Instrumentation AQ Regulations" and is designed with protective measures for the testing equipment and test samples. Before testing, please ensure that the grounding terminal is reliably grounded.

3．Please enter the correct settings parameters before starting the test.

4．The instrument can only be used for low voltage and low current testing, and all leads must be kept away from high voltage.

5. During the testing process, it is not allowed to remove the grounding wire and testing wire.

6. The memory can store 30 measurement results. If it exceeds 30 times, previous records will be overwritten. Please note to copy or export to a USB drive in a timely manner.

7. The host and wireless collector can work while charging. But do not work when the charging indicator light is flashing.

8. connectPTThere are wires with voltage on them100mADo not use other specifications of fuses or wires instead of fuses.

9. If the instrument malfunctions, it will not damage the test sample. It is not allowed to start and repair without permission from our companydisassemblePlease contact our company's after-sales service.

7、 After sales service:

1When purchasing products from our company, please bring the product warranty certificate with you. When ordering products and delivering them, please inspect them on the spot.

2From the date of purchase, the warranty is valid for one year with the warranty certificate,Lifetime maintenance. The battery is a consumable component and is not covered by the warranty. During the warranty period, no maintenance fees will be charged for repairs; Outside the warranty period, appropriate fees will be charged for maintenance and debugging.

3、Any of the following situations will not be covered by warranty:

1）Users may disassemble the instrument themselves or make artificial changes to the process structure of the instrument.

2）Serious damage to the instrument caused by improper storage or use by the user.

1	host machine	1tower
2	Specialized testing line	1cover
3	defend a place difficult of access Pipe（0.1A）	4only
4	charger	1individual
5	strike seal paper	1roll up
6	operation instructions	1share
7	certificate of conformity	1individual
8	test report	1share

Baoding Xuanwei Power Equipment Technology Co., Ltd. has long been engaged in the research and development, production, and sales of power testing equipment. Production changes

Transformer winding deformation tester, DC resistance tester, circuit resistance tester, transformer demagnetization machine, transformer low voltage tester

Voltage impedance tester, transformer capacity characteristic tester, earth network grounding resistance tester, multifunctional high-altitude wiring clamp

Wait. The company always adheres to the development concept of relying on technological progress and striving for technological innovation, and insists on honesty and hard work

Build the company into a modern enterprise with market-oriented operations, standardized production, and scientific management. Keeping up with the times, sincere cooperation

Baoding Xuanwei Electric Power Equipment Technology Co., Ltd. sincerely hopes to cooperate with our customers and work together for the modernization of China's electric power industry

Make contributions to the construction of culture.

Main products or services: Transformer testing instruments; Electric power instruments and meters; DC resistance tester; Winding deformation tester; become different

Pressure demagnetizer; Low voltage short-circuit impedance tester; Multi functional high-altitude wiring pliers; Transmission, distribution, and control equipment; Transformer ratio

Tester; Transformer winding deformation; Circuit resistance tester; Grounding resistance tester for the earth network; High voltage generator; transformer

Capacity characteristic tester; Transformer comprehensive tester; Wireless high-voltage nuclear phase analyzer; Cable fault tester; Voltage current ratio tester

Zinc oxide lightning arrester; Insulation oil dielectric strength tester

Consultation hotline: Manager Wang