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Recently Published Blogs

What to Consider in DC Hipot Testing

by Protec Tech Team April 30, 2018

Ensuring electrical safety is a major aim of any electrical maintenance personnel. That is why when installing new cables, electrical testing should be carried out first. This testing is a quality control measure to ensure that only good cables will be used in the power facility.

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Choosing an ABB Secondary Injection Test Kit Suitable for Your Needs

by Protec Tech Team April 23, 2018

 Secondary injection testing is a diagnostic method of determining if a secondary protective device will respond as  expected in both normal and faulted conditions. This method of testing is conducted by injecting signals directly into the trip unit that controls that operation of the circuit breaker to which it is connected.

Since this type of operational testing is performed by injecting secondary signals into the device instead of using primary current levels, it is generally considered to be a safer method of verifying the proper operation of a circuit breaker. This method of testing can be performed on circuit breakers as a part of commissioning or preventive maintenance.

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Why Circuit Breaker Testing is Important

by Protec Tech Team April 23, 2018

Circuit breakers are important devices that interrupt current when an electrical fault occurs. If they fail to operate properly during a fault condition, the electrical system can be at risk of being damaged.   Additionally, the mis-operation of such a device can lead to costly impacts associated with the interruption of electrical service.  Technicians should regularly test for potential problems so the circuit breakers can be verified to operate according to their intended design.  Regular maintenance practices provide the opportunity to identify and correct operational issues and ensure power system reliability.

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Testing of Electromechanical Protective Relays

by Protec Tech Team April 17, 2018

Electromechanical Protective Relays are usually attached to medium voltage circuit breakers to detect abnormalities in the current flowing within the electrical system. 

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2 and 3 Point Ground Resistance Meters from Megger

by Protec Tech Team April 17, 2018

With the advancement in ground resistance measurement technologies, much of the test equipment currently available for this purpose now provide the convenience of Clamp-On technologies that are in some applications preferable to the traditional 2-3 point testing methods. These clamp-on ground resistance meters provide the potential to save valuable time and effort by inducing a current into the ground through electromagnetic coupling. The jaws then sense the voltage drop around the loop and automatically calculate the ground resistance using Ohm's Law.

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When it Comes to Partial Discharge Testing, Protec Has What You Need

by Protec Tech Team April 05, 2018

Partial Discharge (PD) occurs when electrical discharges take place inside medium and high voltage insulation due to imperfections in the system (flaws, cracks, voids, irregularities).

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Rent the Siemens PTS-5 for Secondary Injection Testing of STIII

by Protec Tech Team April 05, 2018

Designed to perform secondary injection testing on the Static Trip III (STIII) overcurrent tripping system utilized on the RL breaker, the Siemens PTS-5 Secondary Injection Test Set, packaged in a self-contained case, contains a microprocessor controlled constant current source which enables rapid verification of the performance of the STIII.

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Directly enter the desired test current on the numeric keypad for easy test configuration, and the self-contained, automatically controlled digital timer allows simple verification of the time-current tripping characteristics. The Siemens PTS-5 also provides a regulated DC voltage to allow functional testing of the tripping actuator.

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Megger Monthly Webinar Series Offer Valuable Testing Tips and Tricks

by Protec Tech Team March 29, 2018

When it comes to electrical test equipment Megger has been designing and making test and measurement instruments that perform electrical measurements for preventative maintenance, troubleshooting and commissioning for decades.

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Rent the Monarch Pocket Laser Tach 200, a Multi-Function Tachometer

by Protec Tech Team March 29, 2018

The Monarch Pocket Laser Tach 200 is a digital, battery-powered portable optical tachometer, which operates up to 25 feet (performance subject to intensity of ambient light) from a reflective target using a Class 2 laser light source.

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For Energy and Demand Power Studies Rent the PowerSight PS3550

by Protec Tech Team March 21, 2018

The PowerSight PS3550 Power & Energy Analyzer offers complete power usage and energy cost analysis in a compact, rugged package.

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HDE DDVIP-40, a Wireless Dual-Display Voltage Indicator, Phasing Tool

by Protec Tech Team March 21, 2018

The HD Electric Company Double Vision Dual Display Wireless Voltage Indicating Phaser - DDVIP-40, is a completely wireless dual display voltage indicator and phasing tool for voltages up to 43kV.  It includes a pair of lightweight, single stick line-to-ground voltage indicators that communicate with each other wirelessly. 

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The HDE DDVIP-40 can also be used independently as Digital Voltage Indicators.

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Rent Reliable Electrical Test Equipment from Protec

by Protec Tech Team March 13, 2018

More often than not, regularly scheduled inspection and maintenance of equipment proves to be crucial, as it allows for problems that do not show any symptoms to be discovered and corrected before it’s too late. Thus, keeping equipment performing at optimal levels while saving companies money.

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Protec Equipment Resources Inc.
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Grand Prairie, Texas 75050

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