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03 Apr, 2022 163 Views Author: Saeed, Hamza

How does the surge generator avoid power surges

What is a power surge?

Power surges are abnormally high voltage spikes occurring on the AC power. Their short duration, high energy events indicate that they are both very fast and very large. Several conditions affect the quality of power. These conditions include sags, brownouts, blackouts, swell lines, noise surges, temporary over voltages, and sustained over voltages.

Power surges are the most common of these conditions. The externally generated surges are the most destructive and account for approximately 30% of the disturbances seen in the home. The most obvious and dramatic external source is lighting. Internally generated power surges come from several sources and account for the remaining 70% of the disturbances seen in the home.

The final question is,’’ Why do the generators surge?’’ There are many reasons; inadequate use of fuel, a falling capacitor, poor maintenance, age, and many other surging causes. Power surges indicate your generators.

Power surge usually occurs when the electricity is resumed or stopped. It can also happen when the circuit breaker releases the energy into the system.

Working of a Surge Generator

Once you get it, you need to verify all the accessories
• mains cable
• supply cable
• plug adapter
• manual and calibration certificate

Before turning on the generator, confirm the short-circuit plug is inserted in the safety circuit. If using an external CDN, switch this plug to see; otherwise, leave it.

• Plug-in mains cable and properly ground the generator to one of the ground connections on the rear or front side of the unit.
• Plugin the UT supply cable to the line input on the rear of the unit to power your UT.
• Connect the eut to the CDN by power plug or the banana jacks on the front or rear side.
• Switch the power on and wait for the generators to start up. Push the surge on/off button so the light is off.
• You can also use a memory button to recall up to 32 programmable settings or use a dial in a variable mode to set the desired parameters.
• Push the charging voltage button and use the dial to adjust the voltage from 100 volts to 4.4 kV. This button allows you to adjust the phase angle.
• The number button will adjust the number of trigger pulses per test cycle for a single pulse.
• Turn the knob until the display is blank. The period button will adjust the test period from 10 to 999 seconds.
• Choose from positive, negative, or alternating polarity. Here, you can choose the coupling mode.
• When you have the required settings push the surge on/off button, so the light is on.
• Now, push the charge button to start the surge test.
• Notice the number of pulses in the display will decrease with every pulse. Press the discharge button to pause the test.
• Press charge to continue the test.
• Press discharge twice to stop and reset the test.

Surge Generator | SG61000-5

surge generator

Surge Generator SG61000-5

The SG1000-5 surge/wave generator is also known as

  1. lightning surge immunity test
  2. combination wave generator
  3. surge current generator/surge voltage generator
  4. combined surge voltage and current generator

The SG-61000-5 surge generator provides a common basis for evaluating the resistance of power cords and the internal connectors of multiple types of equipment to a high energy transient interference. This high energy interference is caused by a natural lightning surge induction and a large capacity load switching. It fully meets the IEC 61000-4-5, EN61000-4-5, and GB/TI17626.5 standards.


• Output Voltage: 1.2/50μs±20%
• Output Current: 8/20μs±20%
• Output Impedance: 2Ω and 12Ω
• Output Voltage Range: 0~6KV±10%
• Output Current Range: 0~3KA±10%
• Surge Repetition: 1~9999 times
• Interval time: 20~9999s
• Polarity: Positive, Negative or Positive/Negative automatic
• Special Function: Built-in High voltage and current 2000:1 attenuator probe (Less than 10 KV surge generator is 1000:1), connect with LISUN OSP1102 directly
• Operation Way: Touch screen with super big LCD and built-in Windows CE
• Dimensions: 44x45x35cm
• Gross Weight: About 30kg
• Coupling/ Decoupling Network: Includes a 16A single phase CDN
• Isolation Transformer for EUT (Optional) : LISUN ITEU-SP4K (220V Single phase) or ITUS-SP2K (110V)

Due to the high voltage risk during the surge test, we recommend that you choose a Protect Device for performing a Surge Test PD-E01 to get the work completed with the Surge Generator.

The 6kV and below 6kV surge generator is a small wooden box, and the equipment is a small desktop surge generator. 10kV and above is a large wooden box, and the equipment is a grandfather generator. The wooden box also contains a small accessory box.

The coaxial line connects the oscilloscope to view a surge waveform. The sample input line connects the isolation transformer to the surge generator. The sample output line connects the surge generator to the sample.

• Grounding line
• Power cord

The surge generator must be used together with an isolation transformer.
An instantaneous large current pulse will be returned during the surge test. The isolation transformer is used to protect the system and power on the sample. The sample box is optional.

It is used to protect the operator. The sample is placed in the sample box during the surge test. Interestingly, LISUN can customize different size sample boxes according to your samples.


• A wooden table is needed according to the standard. Take out all the hardware and accessories.
• The surge generator system does not need to be installed. It only needs a wire connection.
• Using the surge generators with different voltage outputs is the same.
• Connect the sample through the sample box. If there is no sample box, you can directly connect the sample.
• Connect the power cords of the transformer and the surge generator to the power source.
• The other ports of the generator do not need to be connected.

Frequently Asked Questions

How does the generator surge up and down?

Surging is caused by fuel problems. It usually happens because of incorrect fuel, low fuel levels, or poor fuel quality. Most generators have specific fuel requirements. They use any fuel outside those parameters that can cause operational issues, including surges.


Can we use electronics on the generator?

Yes, we can use the electronics on the surge generator. Most importantly, the surge generators ensure that power does not surge through the circuit. The power coming out of the circuit is safe.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are GoniophotometerIntegrating SphereSpectroradiometerSurge GeneratorESD Simulator GunsEMI ReceiverEMC Test EquipmentElectrical Safety TesterEnvironmental ChamberTemperature ChamberClimate ChamberThermal ChamberSalt Spray TestDust Test ChamberWaterproof TestRoHS Test (EDXRF)Glow Wire Test and Needle Flame Test.

Please feel free to contact us if you need any support.
Tech Dep: [email protected], Cell/WhatsApp:+8615317907381
Sales Dep: [email protected], Cell/WhatsApp:+8618117273997


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