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Emc Surge Test Laboratory

Emc Surge Test Laboratory

Brand Name: LCS Compliance Laboratory
Model Number: SURGE Test
MOQ: 1pcs
Price: 100USD
Detail Information
EMC Test:
SURGE Test
High Light:

emc surge test

,

emc test laboratory

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emc test labs

Product Description

SURGE Test; What is surge (SURGE) EMC test?

With the rapid development of technology, electronic devices play an increasingly important role in our lives. However, we cannot ignore that electronic equipment may encounter various electromagnetic interference (EMI) effects during normal operation. In order to ensure the normal operation of electronic equipment, the surge (SURGE) EMC test came into being.

First, let’s get to know the surge (SURGE) EMC test.

Emc Surge Test Laboratory 0

What is surge (SURGE) EMC test?

The surge (SURGE) EMC test is an important test used to detect the anti-interference ability of electronic equipment under instantaneous voltage fluctuations. It simulates power failure, lightning and other phenomena that may occur in the real environment to test the survivability of equipment in harsh electromagnetic environments. For example, whether electronic equipment can continue to function normally after a lightning strike.

In the electromagnetic compatibility EMC test, there is a test called surge test. So what is surge test?

EMC surge test (Electromagnetic Compatibility Surge Test) is a test method used to test whether electronic equipment can withstand transient voltages from the power grid. EMC surge testing is usually performed in accordance with the international standard IEC 61000-4-5.

In EMC surge testing, the test equipment is exposed to transient voltages that simulate the power grid to simulate sudden overvoltage events in the power grid. These overvoltages may be caused by lightning strikes, power grid failures, power switches, etc., and may damage equipment or interfere with the normal operation of equipment.

So, what is the purpose of the surge (SURGE) EMC test?

First, through the surge (SURGE) EMC test, the electromagnetic compatibility (EMC) performance of electronic equipment can be evaluated. Electromagnetic compatibility refers to the ability of electronic equipment to operate normally in a specific environment without causing harmful interference to other equipment. Secondly, the surge (SURGE) EMC test can help electronic equipment designers find possible defects in the design or production process of the equipment, thereby improving the reliability and stability of the equipment.

EMC surge test standards

1. Electrical and electronic equipment: GB/T17626.4-2006, IEC61000-4-5: 2001;

2. Information technology equipment: GB/T17618-2015, CISPR24: 2010;

3. Household appliances, power tools and similar appliances: GB/T4343.2-2009, CISPR14-2: 2008;

4. Electrical equipment for measurement, control and laboratory use: GB/T18268.1-2010, IEC61326-1:2005;

5. Rail transit equipment: GB/T24338.4-2018, GB/T25119-2010, GB/T24338.6-2018, GB/T24338.5-2018;

6. Engineering medical equipment: GB4824-2013, IEC CISPR11: 2010;

7. Programmable controller: GB/T15969.2-2008, IEC61131-2: 2007;

8. Computer equipment: GB/T9813.1-2016, GB/T9813.2-2016;

9. Photovoltaic equipment: CGC/GF004: 2011 (CNCA/CTS0004-2009A), NB/T32004-2013, CGC/GF037: 2014 (CNCA/CTS0001-2011A);

10. Speed-adjustable electrical transmission system: GB12668.3-2012, IEC61800-3: 2004;

11. Wind turbine equipment: NB/T31004-2011;

12. Measuring relays and protection devices: NB/T31004-2011.

The main standard for EMC surge testing is IEC 61000-4-5, which stipulates the electromagnetic compatibility performance that equipment should have under sudden overvoltage (i.e., surge) in the power system.

In addition to IEC 61000-4-5, there are a number of other EMC surge test standards, including:

1.ANSI C62.41: This standard is suitable for surge and transformer withstand testing in power systems.

2. EN 61000-6-1 and EN 61000-6-2: These standards specify the methods and requirements for EMC testing under different environmental conditions.

3. FCC Part 18: This is the EMC testing requirement stipulated by the Federal Communications Commission of the United States and applies to non-consumer electronic equipment such as industrial, scientific and medical equipment.

4.VDE 0843: This is the EMC test requirement stipulated by the German Electrical Electronics and Information Technology Association, including surge testing.

These standards play an important role in EMC surge testing. Equipment manufacturers need to conduct tests according to the standards of their country or region to ensure that the equipment meets the corresponding requirements and regulations during use.

EMC surge testing generally uses a simulated surge generator to inject surge pulses into the equipment under test, and then detects the response of the equipment.

The following are general EMC surge testing methods:

1. Determine the EMC testing requirements and standards for test equipment, such as IEC 61000-4-5.

2. Prepare the surge generator and test equipment, and connect the test equipment to the simulated power line and surge generator.

3. Adjust the surge generator and set the corresponding test parameters, such as test voltage, waveform, frequency and test time.

4. Before starting the test, check whether the test equipment is correctly wired and meets the corresponding safety requirements.

5. Start the test, inject surge pulses into the test equipment, and record the response of the test equipment, such as whether there is a fault, whether the power supply is interrupted, etc.

6. If there is a problem with the test equipment, it needs to be investigated and analyzed to find out the cause of the problem and make necessary repairs and improvements.

7. Analyze and evaluate the test results to determine whether the test equipment meets the corresponding EMC requirements and standards.

8. Based on the test results, adjust and improve the equipment if necessary until the test equipment can meet the corresponding EMC requirements and standards.

It should be noted that EMC surge testing needs to be conducted in a specialized laboratory or testing facility to ensure the stability and repeatability of the testing environment. At the same time, attention must be paid to the safety of test equipment and test personnel during the test process, and corresponding safety operating procedures and standards must be followed.

EMC surge test criteria are usually based on the test standard used, such as IEC 61000-4-5. The following are general judgment criteria:

1. Whether the surge test is passed: The equipment needs to be able to operate normally during the test and not be affected by surge pulses.

2. Whether the equipment fails: If the equipment fails during the test, such as shutdown, restart, incorrect data, etc., it means there is a problem with the EMC performance of the equipment.

3. Whether the waveform meets the requirements: The waveform of the surge pulse needs to meet the corresponding test requirements, such as rise time, duration, peak voltage, etc.

4. Waveform limit: If the device cannot withstand the waveform of the test pulse during the test, for example, the peak voltage exceeds the maximum voltage that the device can withstand, it means there is a problem with the EMC performance of the device.

5. Before and after the waveform limit: During testing, it is necessary to check the status of the equipment before and after the surge pulse injection to determine whether the equipment is affected by the waveform pulse.

It should be noted that the judgment criteria may vary depending on the test purpose, test equipment and test environment. Therefore, when conducting EMC surge testing, it is necessary to conduct the test according to the corresponding test standards, and make evaluation and judgment based on the test results.

The necessity of EMC surge testing

Electronic products that fail the EMC surge test may crash, reset, malfunction, or burn out in actual use, so EMC surge testing must be performed.

EMC surge testing equipment

1. Transient conducted immunity simulation generator

2.Lightning surge tester

3.Synthetic wave generator

4. Three-phase coupling network

5. Data line coupling network

6.Lightning surge tester

7.7.4KV test module

8. Coupling and decoupling networks

Precautions for EMC surge testing

1. Before testing, be sure to add protective measures in accordance with the manufacturer's requirements.

2. The test rate is once every minute, which should not be too fast, so as to provide a performance recovery process for the protection device. In fact, the phenomenon of lightning strikes in nature and the switching of large switches in switch stations cannot have very high repetition rates.

3. Test, generally do 5 times of positive/negative polarity.

4. The test voltage should gradually increase from low to high to avoid artifacts due to the nonlinear characteristics of the volt-ampere. In addition, pay attention to the test voltage not exceeding the requirements of the product standard to avoid unnecessary damage.

What are the differences between surge testing and lightning strike testing?

(1) What is the difference between ES transient test and lightning surge test?

Lightning surges are part of EMC testing. Lightning surge refers to the instantaneous high voltage generated on power lines, signal lines, and control lines by lightning strikes. TVS is generally used to suppress it.

(2) What are the differences and connections between the two experimental items "impulse current" and "surge" in the EMC test?

1. Inrush current describes an instantaneous large current. Generally refers to the large current generated inside an electrical appliance for a moment when it is powered. This is mainly reflected in inductive and capacitive loads. The inductive load represents the motor. The moment the motor starts, it is equivalent to a short circuit, and the current is quite large, because the resistance and inductance of the motor's windings are very small. A reverse inrush current will also be generated when the motor is turned off. Inductive loads such as capacitors are equivalent to short circuits the moment they are powered on, and the current is theoretically infinite at that moment. In addition, the moment when a fluorescent lamp is started, it requires an instantaneous high voltage and large current to ionize the mercury vapor inside the lamp tube.

2. Surge may describe current or voltage (most of the time it refers to voltage). For example, during a lightning strike, an instantaneous high voltage is generated on the power grid and applied to electrical equipment.

3. Contact: When the motor is shut down, there is both an impact current and a surge.

(3) The difference between surge and lightning strike

1. Different properties

1. Surge: It is an instantaneous peak value exceeding the stable value, which includes surge voltage and surge current.

2. Lightning strike: When lightning strikes, electric current passes through people, livestock, trees, buildings, etc., causing injury or damage.

2. Different causes

1. Surge: It is a violent pulse that occurs in only a few millionths of a second. Possible causes of surges include heavy equipment, short circuits, power switching, or large engines.

2. Lightning strike: a rapid discharge between one part of the charged cloud layer and another part of the cloud layer with a different type of charge, or the charged cloud layer on the earth.

3. Different characteristics

1. Surge: Products containing surge blocking devices can effectively absorb sudden huge energy to protect connected equipment from damage.

2. Lightning strike: The rapid discharge process produces strong lightning and is accompanied by loud sounds; when lightning occurs, charges are usually generated, with the bottom layer being negative electricity and the top layer being positive electricity. Positive charges are also generated on the ground, which move with the clouds like a shadow. Positive and negative charges attract each other, but air is not a good conductor.

3. In the EMC test, what are the factors that influence the failure of the lightning surge test?

Add some lightning protection and anti-surge devices to the power and signal line interfaces. Devices for lightning protection and surge protection include the following: varistor TVS tube (Zener diode) gas discharge tube solid discharge tube. The specific products of these devices have their own parameters. If you set the voltage very high when doing the test, It is useless to choose a device that cannot protect against such a high voltage. So check whether the parameters of the device you choose are correct and whether it can withstand such high voltage and current.

Products Details

Home > Products >
Testing
>
Emc Surge Test Laboratory

Emc Surge Test Laboratory

Brand Name: LCS Compliance Laboratory
Model Number: SURGE Test
MOQ: 1pcs
Price: 100USD
Detail Information
Brand Name:
LCS Compliance Laboratory
Model Number:
SURGE Test
EMC Test:
SURGE Test
Minimum Order Quantity:
1pcs
Price:
100USD
High Light:

emc surge test

,

emc test laboratory

,

emc test labs

Product Description

SURGE Test; What is surge (SURGE) EMC test?

With the rapid development of technology, electronic devices play an increasingly important role in our lives. However, we cannot ignore that electronic equipment may encounter various electromagnetic interference (EMI) effects during normal operation. In order to ensure the normal operation of electronic equipment, the surge (SURGE) EMC test came into being.

First, let’s get to know the surge (SURGE) EMC test.

Emc Surge Test Laboratory 0

What is surge (SURGE) EMC test?

The surge (SURGE) EMC test is an important test used to detect the anti-interference ability of electronic equipment under instantaneous voltage fluctuations. It simulates power failure, lightning and other phenomena that may occur in the real environment to test the survivability of equipment in harsh electromagnetic environments. For example, whether electronic equipment can continue to function normally after a lightning strike.

In the electromagnetic compatibility EMC test, there is a test called surge test. So what is surge test?

EMC surge test (Electromagnetic Compatibility Surge Test) is a test method used to test whether electronic equipment can withstand transient voltages from the power grid. EMC surge testing is usually performed in accordance with the international standard IEC 61000-4-5.

In EMC surge testing, the test equipment is exposed to transient voltages that simulate the power grid to simulate sudden overvoltage events in the power grid. These overvoltages may be caused by lightning strikes, power grid failures, power switches, etc., and may damage equipment or interfere with the normal operation of equipment.

So, what is the purpose of the surge (SURGE) EMC test?

First, through the surge (SURGE) EMC test, the electromagnetic compatibility (EMC) performance of electronic equipment can be evaluated. Electromagnetic compatibility refers to the ability of electronic equipment to operate normally in a specific environment without causing harmful interference to other equipment. Secondly, the surge (SURGE) EMC test can help electronic equipment designers find possible defects in the design or production process of the equipment, thereby improving the reliability and stability of the equipment.

EMC surge test standards

1. Electrical and electronic equipment: GB/T17626.4-2006, IEC61000-4-5: 2001;

2. Information technology equipment: GB/T17618-2015, CISPR24: 2010;

3. Household appliances, power tools and similar appliances: GB/T4343.2-2009, CISPR14-2: 2008;

4. Electrical equipment for measurement, control and laboratory use: GB/T18268.1-2010, IEC61326-1:2005;

5. Rail transit equipment: GB/T24338.4-2018, GB/T25119-2010, GB/T24338.6-2018, GB/T24338.5-2018;

6. Engineering medical equipment: GB4824-2013, IEC CISPR11: 2010;

7. Programmable controller: GB/T15969.2-2008, IEC61131-2: 2007;

8. Computer equipment: GB/T9813.1-2016, GB/T9813.2-2016;

9. Photovoltaic equipment: CGC/GF004: 2011 (CNCA/CTS0004-2009A), NB/T32004-2013, CGC/GF037: 2014 (CNCA/CTS0001-2011A);

10. Speed-adjustable electrical transmission system: GB12668.3-2012, IEC61800-3: 2004;

11. Wind turbine equipment: NB/T31004-2011;

12. Measuring relays and protection devices: NB/T31004-2011.

The main standard for EMC surge testing is IEC 61000-4-5, which stipulates the electromagnetic compatibility performance that equipment should have under sudden overvoltage (i.e., surge) in the power system.

In addition to IEC 61000-4-5, there are a number of other EMC surge test standards, including:

1.ANSI C62.41: This standard is suitable for surge and transformer withstand testing in power systems.

2. EN 61000-6-1 and EN 61000-6-2: These standards specify the methods and requirements for EMC testing under different environmental conditions.

3. FCC Part 18: This is the EMC testing requirement stipulated by the Federal Communications Commission of the United States and applies to non-consumer electronic equipment such as industrial, scientific and medical equipment.

4.VDE 0843: This is the EMC test requirement stipulated by the German Electrical Electronics and Information Technology Association, including surge testing.

These standards play an important role in EMC surge testing. Equipment manufacturers need to conduct tests according to the standards of their country or region to ensure that the equipment meets the corresponding requirements and regulations during use.

EMC surge testing generally uses a simulated surge generator to inject surge pulses into the equipment under test, and then detects the response of the equipment.

The following are general EMC surge testing methods:

1. Determine the EMC testing requirements and standards for test equipment, such as IEC 61000-4-5.

2. Prepare the surge generator and test equipment, and connect the test equipment to the simulated power line and surge generator.

3. Adjust the surge generator and set the corresponding test parameters, such as test voltage, waveform, frequency and test time.

4. Before starting the test, check whether the test equipment is correctly wired and meets the corresponding safety requirements.

5. Start the test, inject surge pulses into the test equipment, and record the response of the test equipment, such as whether there is a fault, whether the power supply is interrupted, etc.

6. If there is a problem with the test equipment, it needs to be investigated and analyzed to find out the cause of the problem and make necessary repairs and improvements.

7. Analyze and evaluate the test results to determine whether the test equipment meets the corresponding EMC requirements and standards.

8. Based on the test results, adjust and improve the equipment if necessary until the test equipment can meet the corresponding EMC requirements and standards.

It should be noted that EMC surge testing needs to be conducted in a specialized laboratory or testing facility to ensure the stability and repeatability of the testing environment. At the same time, attention must be paid to the safety of test equipment and test personnel during the test process, and corresponding safety operating procedures and standards must be followed.

EMC surge test criteria are usually based on the test standard used, such as IEC 61000-4-5. The following are general judgment criteria:

1. Whether the surge test is passed: The equipment needs to be able to operate normally during the test and not be affected by surge pulses.

2. Whether the equipment fails: If the equipment fails during the test, such as shutdown, restart, incorrect data, etc., it means there is a problem with the EMC performance of the equipment.

3. Whether the waveform meets the requirements: The waveform of the surge pulse needs to meet the corresponding test requirements, such as rise time, duration, peak voltage, etc.

4. Waveform limit: If the device cannot withstand the waveform of the test pulse during the test, for example, the peak voltage exceeds the maximum voltage that the device can withstand, it means there is a problem with the EMC performance of the device.

5. Before and after the waveform limit: During testing, it is necessary to check the status of the equipment before and after the surge pulse injection to determine whether the equipment is affected by the waveform pulse.

It should be noted that the judgment criteria may vary depending on the test purpose, test equipment and test environment. Therefore, when conducting EMC surge testing, it is necessary to conduct the test according to the corresponding test standards, and make evaluation and judgment based on the test results.

The necessity of EMC surge testing

Electronic products that fail the EMC surge test may crash, reset, malfunction, or burn out in actual use, so EMC surge testing must be performed.

EMC surge testing equipment

1. Transient conducted immunity simulation generator

2.Lightning surge tester

3.Synthetic wave generator

4. Three-phase coupling network

5. Data line coupling network

6.Lightning surge tester

7.7.4KV test module

8. Coupling and decoupling networks

Precautions for EMC surge testing

1. Before testing, be sure to add protective measures in accordance with the manufacturer's requirements.

2. The test rate is once every minute, which should not be too fast, so as to provide a performance recovery process for the protection device. In fact, the phenomenon of lightning strikes in nature and the switching of large switches in switch stations cannot have very high repetition rates.

3. Test, generally do 5 times of positive/negative polarity.

4. The test voltage should gradually increase from low to high to avoid artifacts due to the nonlinear characteristics of the volt-ampere. In addition, pay attention to the test voltage not exceeding the requirements of the product standard to avoid unnecessary damage.

What are the differences between surge testing and lightning strike testing?

(1) What is the difference between ES transient test and lightning surge test?

Lightning surges are part of EMC testing. Lightning surge refers to the instantaneous high voltage generated on power lines, signal lines, and control lines by lightning strikes. TVS is generally used to suppress it.

(2) What are the differences and connections between the two experimental items "impulse current" and "surge" in the EMC test?

1. Inrush current describes an instantaneous large current. Generally refers to the large current generated inside an electrical appliance for a moment when it is powered. This is mainly reflected in inductive and capacitive loads. The inductive load represents the motor. The moment the motor starts, it is equivalent to a short circuit, and the current is quite large, because the resistance and inductance of the motor's windings are very small. A reverse inrush current will also be generated when the motor is turned off. Inductive loads such as capacitors are equivalent to short circuits the moment they are powered on, and the current is theoretically infinite at that moment. In addition, the moment when a fluorescent lamp is started, it requires an instantaneous high voltage and large current to ionize the mercury vapor inside the lamp tube.

2. Surge may describe current or voltage (most of the time it refers to voltage). For example, during a lightning strike, an instantaneous high voltage is generated on the power grid and applied to electrical equipment.

3. Contact: When the motor is shut down, there is both an impact current and a surge.

(3) The difference between surge and lightning strike

1. Different properties

1. Surge: It is an instantaneous peak value exceeding the stable value, which includes surge voltage and surge current.

2. Lightning strike: When lightning strikes, electric current passes through people, livestock, trees, buildings, etc., causing injury or damage.

2. Different causes

1. Surge: It is a violent pulse that occurs in only a few millionths of a second. Possible causes of surges include heavy equipment, short circuits, power switching, or large engines.

2. Lightning strike: a rapid discharge between one part of the charged cloud layer and another part of the cloud layer with a different type of charge, or the charged cloud layer on the earth.

3. Different characteristics

1. Surge: Products containing surge blocking devices can effectively absorb sudden huge energy to protect connected equipment from damage.

2. Lightning strike: The rapid discharge process produces strong lightning and is accompanied by loud sounds; when lightning occurs, charges are usually generated, with the bottom layer being negative electricity and the top layer being positive electricity. Positive charges are also generated on the ground, which move with the clouds like a shadow. Positive and negative charges attract each other, but air is not a good conductor.

3. In the EMC test, what are the factors that influence the failure of the lightning surge test?

Add some lightning protection and anti-surge devices to the power and signal line interfaces. Devices for lightning protection and surge protection include the following: varistor TVS tube (Zener diode) gas discharge tube solid discharge tube. The specific products of these devices have their own parameters. If you set the voltage very high when doing the test, It is useless to choose a device that cannot protect against such a high voltage. So check whether the parameters of the device you choose are correct and whether it can withstand such high voltage and current.