Huazheng HZXB-160KV User manual

Brand: Huazheng

Model: HZXB-160KV

Type: User manual

Huazheng HZXB-160KV is a frequency conversion series resonant test device designed for AC voltage withstand testing of power system equipment. It features a lightweight and portable design, making it suitable for field use. The device offers three working modes: automatic, manual, and automatic tuning manual boost, providing flexibility for various testing scenarios. It also has built-in protection functions such as over voltage, over current, and zero position start, ensuring safe operation.

HZXB-160KV/160KVA

HV series resonance test device

Huazheng Electric Manufacturing(Baoding) Co.,Ltd

USER MANUAL

For Thanks:

Dear customers, Thank you for using the Wuhan Friends Electric Co., Ltd. series

resonant test device, we will uphold innovation, unity, efficiency, the integrity of purpose

and dedication for you!

Company Profile

Our company is a set of development, development, production, operation of

electrical testing equipment in one of the professional electrical company. Our main

business is produce Series resonant test device、Adjust the inductance series resonant

test device、No partial discharge induction voltage test equipment、Fully automatic

intelligent CVT resonant booster、Electronic multi-frequency and air-core reactor and other

test equipment. Company location in Guan Nan Yuan 4 Road No.2 East Lake New

Technology Development Zone Wuhan. We have 15 years high voltage power test

equipment series resonant test device of professional experience in production, Site

power engineering commissioning test services and testing equipment rental services and

other sets of business. High pressure test equipment production workshop covers an area

more than 2500 m2. Vacuum drying oven, vacuum pouring cans, vacuum incubators, high

/ low pressure winding machine, such as a large number of professional manufacturing

machinery and equipment. And also have a professional technology Research and

development team，Clean and hygienic winding group, Large scale assembly group，Strict

and meticulous quality inspection group，Dedicated dedication of the after-sales service

and other professional team.These excellent team is the company's production of product

quality and quantity, rapid response to delivery, after-sale Thanksgiving service a strong

guarantee.

The company's contribution to the power industry.

Since 2008，We keep not less than 25% growth rate for the each year, Among them

Series resonant test device、Adjust the inductance series resonant test device、No PD test

equipment、Fully automatic intelligent CVT resonant booster、Electronic multi-frequency

and air-core reactor and other test equipment，Produce 400set./year, Market share of

more than 3,000 sets. Is the largest domestic production capacity and sales of

pressure-resistant power equipment manufacturers, Products sold to the twenty-six

provinces, municipalities, autonomous regions and municipalities, exports to Southeast

Asia, the Middle East, Africa and other countries and regions, has served more than 5,000

user units, and domestic and foreign customers recognized and acclaimed

Dear customer

Thank you for purchasing the company's Frequency conversion series resonant test

device. Before you use this product for the first time, please read this instruction manual in

detail.It will probably help you skillfully use this instrument.

Our aim is to continue to improve and perfect the company's products. So you may

have a little difference with the use of the product if there is any change，

Warning！

Due to the input and output terminals, test column, etc. are likely to take the

voltage，When you plug in the test line, power outlet, will produce electric

spark. Carefully electric shock, avoid electric shock hazard, pay attention to

personal safety！

Careful guarantee

The company's products, in three months from the date of delivery, such as product

defects, we can change for you.Defects such as products within a year, the

implementation of free maintenance. One year or more defects,the implementation of paid

lifelong maintenance.

Safety requirements

Please read the following safety precautions to avoid personal injury

Only qualified technical personnel to perform maintenance

—To prevent fire or personal injury！

Use appropriate power lines：Can only use the product specific, and in line with the

product specifications of the power supply line

Correctly connect and disconnect：When the test lead and the live wire are connected,

please do not connect or disconnect the test lead.

Product grounding：In addition to the products through the power line grounding

conductor earthing, shell grounding column must be grounded. In order to prevent electric

shock, grounding conductors must be connected to the ground. In connection with the

input or output terminals of this product, the product is properly grounded.

Note the ratings of all terminals：In order to prevent fire or electric shock hazard, please

note all the ratings of this product and mark. Before connecting to this product, please

read the instruction manual for further information about the value of the rated value.

Do not operate in the absence of instrument cover：If the cover plate or the panel has

been removed, do not operate this product.

Do not operate when there is a fault：If you find that the product is damaged, please

check the company's maintenance personnel, do not continue to operate.

Do not operate in wet conditions

Content

One Product overview.................................................................................1

Two HZXB-160KV/160KVA HV series resonance test device..................2

Three HZXB-160KV/160KVAEquipment application.....................................................5

Four VF power supply detailed introduction................................................6

Five Common trouble shooting.................................................................17

Six Related data......................................................................................19

One、Product overview

This device principal for 220KV/25000KVA Main transformer neutral point AC

voltage withstand test. The reactor is designed to meet the requirements of low voltage

AC voltage test, such as high voltage and low voltage, and it can meet the requirement of

low voltage AC voltage test with 10kV cable.

The device is composed of a frequency conversion control power supply, an excitation

transformer, a reactor, a capacitor voltage divider, and a compensating capacitor.

1.1 Application of series resonance in power system：

1.1.1、The required power capacity is greatly reduced. Series resonant power supply is

the use of the resonant reactor and the capacitor voltage to generate high voltage

and high current. In the whole system, the power supply is only required to provide

active power consumption of the system, therefore, the power required to test the

power is only 1/Q.

1.1.2、The weight and volume of the device is greatly reduced. The series resonant power

supply, not only saves large power heavy pressure adjusting device and ordinary

power frequency test transformer and resonant excitation power supply only needs to

test the capacity of 1/Q, which makes the system weight and volume greatly reduced,

generally for ordinary test device 1/10.

1.1.3、Improve the output voltage waveform. Resonant power supply is a resonant filter

circuit, can improve the output voltage waveform distortion, get a good sinusoidal

waveform, effectively preventing the harmonic peak of the test sample of the false

breakdown.

1.1.4、Prevention of large short-circuit current burn. In series resonant state, when the

insulation of the test sample is breakdown, the circuit is immediately removed, and

the loop current is rapidly decreased to the normal test current 1/Q. And parallel

resonance or test transformer mode to do the test, the breakdown of the current rise

in a few times, the difference between the short circuit current and the breakdown

current of several hundred times. Therefore, the series resonance can effectively find

the insulation weakness, and there is no big fault point of the fault of the short circuit.

1.1.5、Will not appear any recovery over voltage. When the product is broken down, the

high

voltage is lost immediately, the arc is extinguished immediately, and the recovery

voltage is very long, and it is easy to break off the power supply.

1.2 The main functions and technical characteristics of the

FM resonance device of our company：

The device has the protection function such as over voltage, over current, zero

position start, and the system is out of order. The protection value can be adjusted

according to user's need, and the flashover voltage of the test sample can be recorded.

1.2.1、The whole unit weight is light, easy to use in the field..

1.2.2、The device has three working modes, which is convenient for the user to choose

according to the situation of the scene, and to improve the test speed.

Work mode is: automatic mode, manual mode, automatic tuning manual boost mode.

1.2.3、Can store and remote print data, the data is stored in the digital, convenient to help

users identify and find.

1.2.4、Device automatically sweep frequency when the starting point can be set in the

specified range, sweep direction can be up and down, while the LCD screen display

scan curve, easy to understand whether users can find the resonance point.

1.2.5、Using the DSP platform technology, it can be convenient for the user to increase or

decrease the function and upgrade, but also makes the man-machine exchange

interface more humane.

Two 、HZXB-160KV/160KVA HV series resonance test device

2.1 HZXB-the manufacturer code

160-the maximum rated capacity of the equipment to be able to output, the unit is

kVA

/160-the voltage level of the device to be able to output, the unit is kV；

2.2 HZXB-160KV/160KVA HV series resonance test device

Technical Parameters

2.2.1．额定电压：

160kV—Suffice AC withstand voltage test of 220KV/25000KVA Main transformer

neutral point AC voltage withstand test; working frequency: 45-65Hz, the test

voltage is not more than 160kV, the test time 1min；

2.2.2、Output voltage waveform distortion rate：<1.0％

2.2.3、Allow continuous working time: 60 minutes under the rated conditions；

2.2.4、Device itself quality factor：Q>30

2.2.5、GIS, switch, etc. the full load factor：Q>20（Load related）

2.2.6、Input power: three-phase 380V or single phase 220V

2.2.7．Frequency regulation range：30Hz～300Hz

2.2.8、System measuring accuracy：1.5％

2.2.9、The device has the protection function of over voltage, over current and zero

position.

2.3 Equipment to follow the standard

《Electrical equipment installation engineering electrical equipment handover test

standard》GB50150-2006

《High voltage resonant test device》DL/T 849.6—2004

《reactor》GB10229.88

《Electrical equipment preventive testing procedures》

DL/T596-1996

《Coupling capacitor and capacitor voltage divider》

IEC358(1990)

2.4 Equipment configuration and technical parameters：

2.4.1.VF power supply （1set）：

Rated Capacity：10kW；

Input voltage: 380V or single phase 220V±5% 50Hz

Output voltage: 0 ~ 400V adjustable

Output voltage frequency: 30 ~ 300Hz

0.1Hz step can be adjusted

Frequency stability is less than or equal to 0.02%

output current：0～25A

2.4.2、Reactor（4set ）

rated operational voltage：40kV

rated operational current：1A

Rated inductance：110H

Continuous working time：5min

Temperature rise：65k

Working frequency：30~300Hz

2.4.3、Excitation transformer（1set ）

Rated Capacity：10kVA

Input voltage：400V

Output voltage：10kV

output current：1A

2.4.4、Capacitor voltage divider（1set ）：

Capacitance：1000pF

Rated voltage：160kV

Working frequency：30～300Hz

uncertainty：1.5%

2.4.5、Compensating capacitor（1set ）

Capacitance：5000pF

Rated voltage：160kV

Working frequency：30～300Hz

2.4.6、Test line and accessories 1 bag：

Three、HZXB-160KV/160KVA HV series resonance test

device

3.1 Maintransformer

3.2 Wiring diagram

Test product test configuration table

configuration

REACTOR

EXCITATION

Four、VF power supply detailed introduction

4.1 Basic equipment

4.1.1.power：

Connect the three 380V of the to the "input" of the FM power supply..

4.1.2.Operation panel description:

Pic 1

Power switch: be responsible for power supply of inverter power supply.

High voltage indicator: variable frequency power supply starting

instruction，.

reset: load mismatch, frequency source of overheating and other

Test product

40kVA/40kV 4 SET

VOLTAGE

220KV/25000kVA Main transformer neutral

point

Use 4 electric reactors in series and

Compensating capacitor

10kV

protection actions after fault reset..

Signal - divider divider for access: low voltage arm, maximum voltage

100V, the input impedance of 10M.

Grounding: for system safety grounding.

Mouse interface: access to the U disk query information or access to the

mouse to replace the touch operation.

Liquid crystal display: the display of the system parameters, the wave, the

menu and so on..

L input: access to power three-phase or single-phase 220V 380V + 5% +

5% ~ 45 65Hz, when the power supply is 380V, A, B, C three, can be rated

load test; when the power supply is 220V, A, C phase, 1/2 can only load

test

Output: variable frequency power supply output to the excitation

transformer input.

4.1.3.connect power

Variable frequency power supply in the electric control box after "power switch", lit

LCD display.

Note: the fan at the two sides of the instrument is operating in the operation,

which means that the internal power components of the instrument are normal.

Otherwise, there is no reduction in the internal heat of the instrument or the last

test. At this point should be cut off the power, the instrument will be placed in a

ventilated place for 1 hours or so, until the internal temperature is appropriate to

lower the starting power.

When fans often do not start, the proposal immediately contact the manufacturer.

Please do not disassemble the instrument when the equipment is not recoverable..

4.2 Touch screen：

Frequency conversion power supply control screen for the full touch screen, you only

need to operate on the screen, click on the location, that can be operated.

4.2.1. After starting, the display interface is shown in Figure 2.

Pic 2

4.2.2.Test parameters configuration: all kinds of test before each test.

Parameters! After clicking on the parameter configuration, the display interface is shown

in Figure 3..

Pic 3

● The starting frequency of the automatic tuning is the highest frequency of 20Hz,

the upper limit frequency is 200Hz.

● The termination frequency: select the automatic tuning of the end frequency,

lower frequency up to 100Hz, the upper limit frequency of the lowest is 300Hz.

1 set "the starting frequency" is not higher than the "stop frequency".

2 when the first test is recommended to use 300Hz ~ 30Hz scan.

3 when the frequency range is known, it can be selected to reduce the test

time in the appropriate frequency section.

●L: set the initial voltage tunable input voltage at the beginning of this

value.

1 for the low Q value of the test products such as generator, motor, aerial bus,

at the beginning of this value is set to 50 ~ 70V;

2 for the Q value of the higher test products such as power cables,

transformers, GIS, etc., at the beginning of this value is set to 30 ~ 50V.

●The first phase of the test voltage: the first phase of the test voltage setting

value.

●Test time - the first stage: the first stage pressure time setting of the test

voltage.

●Second - stage test voltage: second stage set the test value of voltage.

●The second stage: pressure test time - time setting second phase voltage

test.

●Third - stage test voltage: third stage set the test value of voltage.

●Third stage test time: set the third stage test voltage of the voltage.

Our voltage tracking system has the function of automatic calibration of large

voltage fluctuations, but the fluctuation range of the grid voltage is small, and the

fluctuation of the voltage is also in the range of the instrument. Therefore, we

strongly recommend that you set up the test voltage at the test voltage.

If there is no phase pressure test, it is only required to set up a stage test

voltage and the corresponding test time, and other test voltage and test time is set to

●For the partial pressure ratio L: divider ratio is 2000:1, the divider ratio is set

to 2000; (General Factory has been set up)

●The overvoltage protection: limit setting test voltage value, the voltage

exceeds automatic termination test, the test voltage is 10% higher than the

general.

●The overcurrent protection: the highest value is set low output current.

Without knowing the actual test current, it is generally set to the rated current

of the device.

●L: set the breakdown voltage of flashover protection error value, and when the

liquid crystal display must be restarted after flashover

●ENT: confirm key.

●1 ~ 0: digital key: select the desired set value.

●ESC: return key.

●Automatic test: when the "parameter configuration" is set up, click the "auto

test", enter the "automatic test" interface, display interface as shown in Figure 4

Pic 4

Click "start test", the system will automatically find the resonance point, the

right corner of the tip is tuned, if there is abnormal situation, please click on the

"down"; blue on behalf of the voltage curve, the display interface as shown in

Figure 5

Pic 5

To find the resonance point, the system automatically boost, the right corner of

the tip, "is being boosted, such as abnormal conditions, please click" stop "; the

display interface as shown in Figure 6.

Pic 6

When the U resonant voltage rise to the test of the pressure value, the system

automatically when the pressure, the right corner of the tip is time, if there is

abnormal situation, please click on the "buck stop"; the display interface as shown

in Figure 7

Pic 7

When the time to set up the pressure time, the system automatically pressure,

the right corner of the tip is the pressure, if there is abnormal situation, please click

on the "down"; the display interface, as shown in Figure 8.

Pic 8

When the U resonance voltage is 0, the right bottom corner is indicated by the

"test", and the display interface is shown in Figure 9..

Pic 9

●Manual test: when the "test parameters" is set up, click the "manual test"

and enter the "manual test" interface, the display interface is shown in

Figure 10..

Pic 10

Click start test, if you want to find the resonance point, click the "tune", the

system automatically find the resonance point, the blue line represents the

voltage curve, showing the interface as shown in Figure 11.

Pic 11

If you do not want to automatically find the resonance point, first click on the

"50V", the "U" rose to a, and then click on the "frequency" to find the resonance

point, to find the resonance point, click on the "rising voltage", showing the

interface as shown in Figure 12.

Pic 12

When the U resonance voltage rises to the setting time of the pressure value,

click on the "breakdown time", the system starts to time. Display interface as

shown in Figure 13.

Pic 13

When the "pressure time", click "stop", the system automatically, the display

interface as shown in Figure 14.

Pic 14

When the U resonant voltage buck 0, the test is completed, such as the test

record, please click on the buck before saving the data, the buck click "file

management"; the display interface as shown in Figure 15.

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Huazheng HZXB-160KV User manual

Huazheng HZXB-160KV User manual

Huazheng HZXB-160KV User manual

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