1、 Main technical indicators

Voltage measurement range:5-400V accuracy: 0.2 level

Current measurement range:0.1-20A working power supply: AC220V ± 10%

Power frequency:50Hz working temperature:- 10℃～50℃

ambient humidity:≤ 85RH Host weight: 6kg

2、 Main features

1. The instrument adopts AC220V low-voltage power supply, which can automatically apply current to the AB, BC, and CA high-voltage windings of the transformer, synchronously collect data, and automatically calculate the impedance error percentage. The test results are very intuitive.

2. One time wiring can automatically complete three-phase testing without reversing the test wire.

3. The instrument can be used for single-phase testing or three-phase testing; It can be tested manually or automatically.

4. It has output current limiting function and is suitable for any impedance test sample.

5. The tested object can be measured without the need for an external voltage regulator.

6. It has the function of measuring zero sequence impedance.

7. It has the function of measuring inductance.

8. Large screen LCD display, Chinese menu, very simple operation, can be completed according to the prompts on the screen.

9. It has printing and storage functions; High testing accuracy, high level of automation, small size, light weight and other characteristics.

3、 Instrument wiring diagram

●The wiring of a single-phase transformer is shown in the diagramA

●The wiring of a three-phase two winding transformer is shown in the diagramB

1. The wiring and selection of measurement positions for three-phase three winding transformers should be consistent. Selection of measurement locationtall-Low，

The test line is connected to the high voltage end, with a low voltage short circuit and other open circuits; selecttall-In the middleIf the test line is connected to the high voltage end, there will be a medium voltage short circuit, and other open circuits; selectcentre-LowIf the test line is connected to the medium voltage end, there will be a low voltage short circuit and other open circuits.

2. The cross-sectional area of the short route shall not be less than 10 square millimeters, and the contact shall be good, otherwise it will affect the accuracy of the test data.

4、 Operating instructions:

1. The following interface is displayed upon startup: (Interface 1)

2. Press the ENT key to enter the parameter setting interface: (Interface 2)

3. Enter parameters according to the on-screen prompts. Use the up and down arrow keys to select rows, left click to delete numbers to the left, and enter numbers using the number keys; If a negative number is required for temperature testing, press the down arrow key to select the positive or negative sign. After entering the parameters, press the ENT key to enter the following interface: (Interface 3)

Tips:

●The input of rated voltage should correspond to the tap position.

●When using the single-phase method of the instrument to make a three-phase transformer, the input parameters should be the rated capacity1/3.

4. Choose to measure single-phase transformers or three-phase transformers.

●The measurement operation of single-phase transformer is as follows：

①According to the diagram in the instrument wiring diagramA， Connect the instrument and transformer to the test line, enter the parameters, and select from the three options on the interfacesingle phase, pressThe ENT key is displayed as follows: (Interface 4)

②pressThe ENT key starts the measurement, and the screen displays the test results, entering the following interface: (Interface 5)

③ After the test data reaches the predetermined value, press the ENT key to pause and lock the test data.

④ After data locking, press the print button to directly print out the test report.

⑤Press the S key to save, and the bottom right corner will prompt an instant 'Save Completed' message.If stored on a USB drive, you need to return to the "Short Circuit Impedance Tester" interface at startup, press the S key, and the screen will display all saved records. Select the record, insert the USB flash drive, press the S key to save to the USB flash drive, and the bottom right corner of the screen will prompt an instant "Save Complete" message.

●Measurement of three-phase transformer - manual measurement operation is as follows：

① According to Figure B in the instrument wiring diagram, connect the instrument and transformer to the test line, enter the parameters, and select from the three options on the interfacethree-phaseMethod, according toThe ENT key is displayed as follows: (Interface 6)

② Press the left and right keys to selecthand movementperhapsautomaticpattern. If you choosehand movementMode, pressENT key, displaying voltage transformation

Three wiring methods for the device:Y/△Y/Y 、△/YThe display is as follows: (Interface 7)

Tips:

a. Select the corresponding wiring method in interface seven based on the connection group of the transformer terminals.

b. Three phase three winding transformercentre-LowThe medium voltage isYLow voltage short circuit, regardless of low voltage connection method, chooseY/△ orY/Y is acceptable.

c. Press the left and right keys to select the wiring method of the transformer. When selecting △/YWhen using the method, it will displayThere are two different wiring methods for the △ connection: AZ-BX-CY and AY-BZ-CX, which users can choose based on the condition of the tested product.

3 After selecting the previous step, pressThe ENT key enters the following interface: (Interface 8)

④Press the left and right keys to select the applied currentAB、BC、CAXiang. If selectedABXiang, pressStart the measurement with the ENT key and measure the voltage and current of phase AB. Display as follows (interface nine):

⑤ Press the Ent key to lock the data, then press the Ent key again to enter the optional BC phase state. Press the left and right keys to selectBCAs shown below(Interface 10)：

⑥ Press the ENT key to start the measurement and measure the voltage and current of the BC phase. Display as follows: (Interface 11)

⑦ The testing method for CA phase is the same as above. After the CA phase data is locked, the instrument automatically synthesizes and calculates the manual single-phase test data three times. Two seconds later, the screen displays the impedance test results and generates a printed report

The screen display is as follows: （Interface 12）

⑧ At this point, press the print button to directly print out the test data report (the report is the same as the subsequent three-phase automatic report).

⑨ Press the S key to save to the instrument, and the bottom right corner will prompt an instant "Save Complete" message. If stored on a USB drive, you need to return to the "Short Circuit Impedance Tester" interface at startup, press the S key, and the screen will display all saved records. Select the record, insert the USB flash drive, press the S key to save to the USB flash drive, and the bottom right corner of the screen will prompt an instant "Save Complete" message.

⑩ Press the ESC key to return from the testing interface to the parameter settings interface, and manually measure the single-phase of the three-phase transformer

end.

●Measurement of three-phase transformer - Three phase automatic measurement operation is as follows：

① After entering the parameters, press the Ent key and selectthree-phaseTransformer, displayed as follows:

Tips:

a. Select the corresponding wiring method in interface 15 based on the connection group of the transformer terminals.

b. Three phase three winding transformercentre-LowThe medium voltage isYLow voltage short circuit, regardless of low voltage connection method, chooseY/△ orY/Y is acceptable.

c. Press the left and right keys to select the wiring method of the transformer. When selecting △/YWhen using the method, it will displayThere are two different wiring methods for the △ connection: AZ-BX-CY and AY-BZ-CX, which users can choose based on the condition of the tested product.

④ Press the Ent key to enter the following interface: (Interface 16)

⑤ Press the Ent key to start the measurement, and the instrument will automatically apply current to the AB, BC, and AC phase windings, collect data, and lock the measured values of the three phases in sequence. After the measurement is completed, the instrument will automatically calculate the impedance error data.

Screen display measurement results: (Interface 17)

⑥At this point, press the print button to directly print out the test report. The test report is as follows:

⑦ Press the S key to save to the instrument, and the bottom right corner will prompt an instant "Save Complete" message. If stored on a USB drive, you need to return to the "Short Circuit Impedance Tester" interface at startup, press the S key, and the screen will display all saved records. Select the record, insert the USB flash drive, press the SAVE key to save to the USB flash drive, and the bottom right corner of the screen will prompt an instant "Save Complete" message.

●Measurement of three-phase transformers - single-phase measurement operation:

When using the single-phase method of the instrument to make a three-phase transformer, the input parameters should be the rated capacity1/3.

The wiring and operation methods are the same as those of single-phase transformers.

5. Measurement of zero sequence impedance: When measuring zero sequence impedance, the wiring method is to connect the high voltage three phases together and in a low voltage short-circuit state. The operation is as follows:

① Select three options on the interfaceZero-sequence impedanceThe display is as follows: (Interface 18)

5packing list

host 1 unit

for a special purposeTEST 1cover

power line 1 piece

ground wire 1 piece

fuse 2 pieces

Product manual 1 copy

test report 1 copy

Product Qualification Certificate 1 copy

printing paper1 roll

VIOrdering and Service

1. Within one year from the date of leaving the factory, the instrument is covered by a free warranty for product quality issues; For damages caused by other reasons, the company only charges material cost fees. Beyond the warranty period, only maintenance costs will be charged.

2. The company provides lifelong maintenance and technical services for its products.

3. If any abnormalities are found in the instrument, please contact the company in a timely manner to provide you with a good solution. Please do not disassemble by yourself!

Transformer low voltage short-circuit impedance tester, mainly suitable for low voltage short-circuit impedance testing of power transformers (single-phase or three-phase) during factory, major maintenance, pre testing, and handover testing.

The principle is to conduct short-circuit impedance testing on the power transformer on site and compare it with the nameplate value or factory value, which can detect winding displacement, deformation and other problems caused by serious fault currents during transportation, installation and operation after the factory test.

The XW-800 transformer low voltage short-circuit impedance tester is easy to operate and the test results are very intuitive. It is a fast testing instrument for on-site testing of transformers for winding deformation.

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