Huazheng HZBB-10A User manual

HZBB-10A
Transformer Turns Ratio Tester
Huazheng Electric Manufacturing (Baoding) Co., Ltd

Dear user:
Thank you for choosing HZBB-10A Transformer Turns Ratio Tester.
We hope that this instrument can make your work easier and more
enjoyable, so that you can get the feeling of office automation in the test
and analysis work.
Before using the instrument, please read this manual, 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 [phone] to
tell you to serve you at all times-Baoding Huazheng Electric Manufacturing
Co., Ltd., our company will definitely make you satisfied !

Contents
I.Preface.............................................................................................................................................1
II. Functions And Characters.......................................................................................................... 1
III. Technical Index............................................................................................................................2
IV. Operating Panel Instructions.................................................................................................... 2
V. Operating Instructions...............................................................................错误！未定义书签。
VI. Connecting Method....................................................................................................................3
VII. Notice.......................................................................................................................................... 9
VIII: Instrument Common Problems And Inspection Methods............................................... 10
VIII.After-sale Service.................................................................................................................... 11
IX.Packing List................................................................................................................................ 11

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I.Preface
During the processing of the semi-finished products and the finished products in
transformer production, the transformer newly installation before using, or according to
IEC and national standard, the turns ratio or voltage ratio should be tested in the circle
rate. Traditional bridge method is complicated, and can’t read the data directly, and you
have to make conversion, the testing results are data of one phase. Turns ratio tester of
HZBB-10A overcomes the shortcomings of traditional bridge method. The monitor adopts
big screen with lattice liquid crystal, which has the function of indicating by menu,
operating easily and directly. It finishes test of three-phase voltage ratio or turns ratio once,
fast testing and high precise.
II. Functions And Characters
1. The three-phase precision inverter power supply is used inside the instrument, which
eliminates the influence of harmonics of the mains voltage during measurement, and the
measurement is more accurate. When the working power source is a generator, there is no
impact.
2. Three-phase output voltage is adopted to improve the test speed. The angle between
phases can be measured, and the wiring group 0-11 can be automatically identified. For
low-voltage rectifier transformers with multiple windings, the low-voltage side does not
need to be disconnected to measure the transformation ratio and 7.5° Angle deviation.
3. It is suitable for a wide variety of transformers, especially suitable for the measurement
of Z-type transformers, rectifier transformers, grounding transformers, electric furnace
transformers, phase shifting transformers, balance transformers, etc.
4. It has high and low voltage reverse connection protection, transformer turn short circuit
protection, tap switch failure protection, output full short circuit protection, and increased
instrument stability.
5. After inputting the rated parameter, it can automatically measure the transformer ratio
value, error value and on-load tap-changer position.
6. Adopt 7-inch high-definition color touch-screen LCD, modular display, clear display even

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under strong light.
7. The device can be equipped with both print output, USB port and RS232 port, which is
convenient for paperless office.
8. The use of cold and heat resistant, sealed, waterproof, anti shock and multi-function
engineering plastic box, easy field test.
III. Technical Index
1.Rating: Variable Ratio - 0.9～10000 Angle - 0-360°
2.Angle measurement: 0-360°
3..Accuracy: ±0.1%(below500) 0.2%(501-2000) 0.5%(2001-10000)
4.Output voltage: automatically adjusted according to load
5.Resolution: Minimum is 0.0001，Angle - 0.01°
6.Working power supply: AC 220V±10% 50Hz
7. Applied temperature: -10℃～40℃
8. Relative humidity: ≤85%, non-condensing
9. Dimension；tester：360*290*170(mm) Wire box：360*290*170(mm)
10.Weight：tester 5.9KG Wire box：5.65KG
IV. Operating Panel Instructions
1. Screen: HD color array LCD, digital adjustment backlight, display operation menu and

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test results.
2. High voltage side: Connect with instrument terminal. The yellow, green, red and black
on the other end that correspond with A, B, C, O three bushings.
3. Low voltage side: Connect with instrument terminal. The yellow, green, red and black
on the other end that correspond with a, b, c,o three bushings.
4. AC 220V: the whole power input, then AC 220V frequency power supply.
5. : Protective grounding column
6. Communication: serial communication
7. USB: U disk storage
8. Printer: Print the testing results after tested.
V.Instructions
（一）Menu description
Figure 1
After starting up the instrument, the startup interface is shown as figure 3. There are six
functional options in the startup interface, including: [three-phase measurement],
[single-phase measurement], [z-type transformer], [Scott transformer], [file recording] and
[system setting]. Click any function button to enter the setting.
（二）Three-phase test interface：

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Figure 2
1.Press the text box to pop up the input keyboard, you can enter a special value, the
standard value can be changed by pressing the button on the right ;
Single-phase measurement, z-type transformer, Scott transformer setting method are
basically the same, no longer repeat；
Test completion interface as shown below：
Figure 3 (test completion interface)
2.After the test is completed, press the “Back” button to return to the boot interface, press
“Test” to re-test, press the “Save” button to store the data in the instrument and U disk, and

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press “Print” to print the data;
Turns ratio test: In Figure 3 of the completed test interface, click [Transformation Ratio] to
freely switch to [Turns Ratio], and the turns ratio data will be updated immediately, as
shown in Figure 4
Figure 4
Click [Time Setting] to enter the time setting interface as shown in Figure 5:
Figure 5
Click [Year] [Month] [Day] [Hour] [Minute] [Second], and the keyboard will pop up to set
the time. After entering the value, click "Del" (you can delete the entered value), and click
"Esc" (do not save) Enter the value and exit the keyboard), click "OK" (save the entered
value and exit the keyboard), and then click [Modify] to update the modification time. As
shown in Figure 6,

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Figure 6
Click [Data Query] to enter the query interface as shown in Figure 7:
Figure 7
[Transformation ratio] Click the transformation ratio button to switch to turns ratio data
[Previous][Next]You can view and print historical data;
[Dump] is to store the current data to the U disk;
[Print]Print current measurement data
1、[System Settings] interface as shown below:

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Figure 8
图六
Figure 9
The system settings are shown in Figure 8:
Memory management: Click "Memory Management" to display "Empty Data" and
"Cancel".
Factory setting: The internal parameter setting of the instrument requires password input,
and the user does not need to modify it.
Bluetooth: Click "Bluetooth" to pop up the QR code (as shown in Figure 9), scan the QR
code with the corresponding software downloaded in the mobile phone to realize the full
control of the instrument by the mobile phone.
VI. Connecting Method
1.Three-phase transformer Y-d-11, 525/√3±4×2.50%/20, Transformer and High Voltage
connecting is according to the Diagram 1 as follows:

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A
B
C
a
b
c
Green
Red
Red
Yellow
Green
Idle
Black
Yellow
Low
Voltage
High
Voltage
Testing
Object
The Tester
Idle Black
2. 525/√3±4×2.50%/20, Single Phase Transformer and High Voltage connecting is
according to the Diagram 2 as follows:
A
O
a
b
O
Green
Black
Black
Yellow
Yellow
Low
Voltage
High
Voltage
Testing
Object
The Tester
Idle Red
Idle Red
Idle Green
Idle Green
Diagram 2

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3、Z type transformer wiring
VII. Notice
1.For having a plurality of contact points of the transformer, so then, tap type, rated high
and low voltage input, in order to make the test results can automatically calculate the
error, and , once rated input data, the test can automatically calculate the error of the
point and the point is which one tap each tap point (i.e. tap a few), do not have to
change the data.
2. Equal division, there is also called the division of distance, voltage combination is
110±8×1.25%/10.0 of the transformer, the 1.25% is equal to the sub level.
3. Rated tapping, the voltage combination of 110±8×1.25%/10.0 transformers, the rated
tapping is 8+1, means 9. Enter the rated bit. This gives an accurate measurement of the
tapping position of the transformer whose rated tapping position is not at the
intermediate point.
4. Turn ratio tester,Applied to three-phase power samples, measured by the ratio
between the high and low voltage, turn ratio is the ratio between high and low voltage
winding circle number.For high pressure is the star (whether or not having a neutral
point), Low voltage transformer delta connection,Variable ratio is the ratio of root turn 3
times. For the low pressure is the star (whether or not having a neutral point), high
voltage transformer is delta connection, turn ratio is 3 times the root variable ratio.

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5. For the transformer with neutral point, such as YN-d-11 transformer, according to
YN-d-11 measurement and Y-d-11 measurement, the results have deviation, theoretical
analysis by Y-d-11 better.
6.On load tap changer 19 files of the transformer, if 9, 10, 11 is the same value, the
instrument input and sub type should be input 9.
7.The tap changer is in the low voltage side of the transformer,which display split position
and actual position inversion.
8.Low voltage level of the transformer, when the input voltage value is not enough, the
high and low voltage can be multiplied by 10 or 100, and so on.
9.To test the Single phase transformer,Simply select the measurement option "Single".
VIII: Instrument Common Problems And Inspection
Methods
When the test is abnormal, the following methods can be used for self-test, and the wiring
is shown in the figure below:
After connecting the wire, select y-y-0 or d-d-0 as the connection mode, and press ok to
start the measurement. The measurement value is 1.0000. The above display indicates

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that the instrument is normal; otherwise, there is something wrong with the instrument.
If there is no short connection, the yellow, green, red and black connecting pliers on the
high-voltage side of the test line can also be connected together with the yellow, green,
red and black connecting pliers on the low-voltage side.
VIII.After-sale Service
The product can be repaired free of charge or changed by a new one if it has
quality problem for one year from sale. We can provide reparation and technical services
for the whole life of the products. Please contact with us if there is any trouble and
abnormal situation so that we can arrange the best solution for you.
IX.Packing List
No.
Item
Qty
1
Main engine
1
2
Power line
1
3
Red test line
1
4
Black test line
1
5
Fuse pipe
2
6
Print paper
1
7
Ground lead
1
8
Serial port line
1