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Recently Published Blogs

Three Phase Relay Diagnostics with the Megger MPRT 8430 Relay Tester

by Protec Tech Team March 07, 2019

Relays undergo electrical and mechanical stress during operation. This can result in the premature deterioration of the relay system. It is a good idea to always check if the relays are working properly. Additionally, acceptance testing allows verification of the programmed characteristics of the relay. This lets you correct operational deficiencies or programming errors prior to it becoming an issue.

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Megger and Doble – The Best Electrical Test Equipment

by Protec Tech Team March 07, 2019

Electrical test equipment rental is very common these days. There are many companies that give you different kinds of testing devices at reasonable rates. Devices like oscilloscopes, network analyzers, function generators, spectrum analyzers, logic analyzers, and telecommunication test equipment are readily available for rental or lease. But the problem is, which one should you rent? For this, you need to analyze your needs and understand your requirements. Two major companies in the electrical testing industry are Megger and Doble.

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Megger DLROs Built for Reliability

by Protec Tech Team February 28, 2019

Contact Us Nowlow resistance ohmmeter can be used to identify many of the issues that stem from poor electrical connections. Contact resistance is a term used to characterize the quality of an electrical connection. Electrical bonds are a component of everything that requires a connection to an electrical path such as junction boxes,bus work, circuit breakers and switches to name a few.  Poor connections can lead to excessive heating, premature equipment failure and damage to the electrical system itself. A good testing and maintenance program will include a low resistance ohmmeter to ensure the quality of electrical connections. 

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DLRO Test for Circuit Breakers

by Protec Tech Team January 24, 2019

With the continuous evolution in all industries, everything has become more dependent on electrical devices and systems. This increasing dependence calls for certain steps to ensure reliable and consistent functioning of the devices. This is why most companies carry out regular testing and diagnosis of electrical devices and systems using high quality, efficient, and reliable electrical test equipment.

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Megger and Doble Power Factor Test Equipment

by Protec Tech Team January 02, 2019

Finding the right diagnostic test to maintain and protect electrical equipment means using the best manufacturer’s equipment to get the right product for the job. When it comes to the power factor test, two makers stand out with reliable and accurate equipment that users can count on to perform optimally every time.

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Rent the Megger SMRT46 Multi-Phase Relay Test System from Protec Today

by Protec Tech Team November 16, 2018

The Megger SMRT46 Multi-Phase Relay Test System is a multipurpose, light-weight, field portable test set capable of testing a wide variety of electro-mechanical, solid-state and microprocessor-based protective relays, motor overload relays and similar protective devices.

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Testing Insulation Resistance Using Megger Test Equipment

by Protec Tech Team November 14, 2018

Insulation plays a very important role in an electrical system. Without electrical insulation, the electricity flowing in the conductors is exposed to short circuit to other conductors or create the risk of electrocution to personnel. It is important to always check the integrity of insulation to ensure the safety and reliability.

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What's the Purpose of Low Resistance Testing With the Megger DLRO 600?

by Protec Tech Team October 29, 2018

What's the purpose of Low Resistance testing?

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Breaking Down a Cable Fault with Capacitive Discharge (“Thumping”)

by Protec Tech Team October 24, 2018

The capacitor discharge technique is performed with a surge generator, nicknamed “thumper.”  This device converts line power into high voltage, unidirectional, impulses that are transmitted into a faulted power cable. A simplified circuit of a surge generator connected to a faulted cable is shown in Figure 1.

Figure 1.

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Can Using a Megger Meter be Destructive?

by Protec Tech Team July 16, 2018

Megger (insulation resistance tester) is a type of electrical test equipment used to verify the effectiveness of insulation to act as a barrier between energized conductors, or between energized conductors and ground. It is critical to the reliability of the electrical power system that there is a way to know when insulation has been damaged or compromised in any way.

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Choose the Megger Insulation Tester That is Right for You

by Protec Tech Team July 10, 2018

Contact Us NowTesting electrical insulation can be quick and easy when using test equipment specifically designed to perform insulation resistance measurements. A good insulator should have a very high resistance to current flow.  Factors such as temperature, electrical and mechanical stresses, weather and moisture ingress are all capable of adversely impacting the characteristic qualities of materials that make them such good insulators. The degradation of these materials over time can result in unplanned outages, safety concerns for personnel and an overall degradation of power system reliability.  

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Avoid Dangerous Accidents by Conducting a Megger Insulation Test

by Protec Tech Team July 10, 2018

An insulation resistance test is conducted to examine the effectiveness of insulation in a variety of electrical power system apparatus. Faulty electrical insulation is the source of dangerous shock hazards and can often cause ancillary damage to adjacent equipment as well. Routine electrical testing and maintenance can help to identify when insulation has deteriated before it reaches the point of failure, saving the expense of repairs and unplanned outages. 

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