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Recently Published Blogs

Testing Relays Using the Doble F2253 Relay Test Set

by Protec Tech Team July 05, 2018

Protective Relays could be characterized as circuit managers with varying degrees of supervisory and control capabilities depending on the complexity and criticality of the circuit.  They are designed to recognize abnormal or fault conditions, and to isolate the affected portion or the electrical system.  Not only does this allow the unfaulted portion of the electrical system to continue to function normally, but it diminishes the impact of the faulted portion of the system.  Changes to power system circuits and the coordination of protective devices can change due to age, loading, environmental impacts, new construction, etc. It is therefore critical that these devices function properly and are appropriately coordinated when they are called into action.

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The F2000 Series Doble Relay Test Sets

by Protec Tech Team June 25, 2018

Relays are often utilized in electrical facilities as isolated switches or protective devices for various electrical equipment. Due to the mechanical operation of relays, the contacts are prone to contact degradation, so it is important to regularly test for the electromechanical, electronic and protection schemes to ensure safe and reliable operation, and to avoid a faulty relay system acting up during critical operations. To assess relays and protections schemes, consider investing in a relay test set or a power system simulator.

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When Testing Differential Protection Relays Trust the Omicron CMC 356

by Protec Tech Team May 07, 2018

Relays take abuse during normal operation, so it is important to always check their condition. Regular checkups will negate problems before they worsen, or even start.

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The Importance of Protective Relay Testing

by Protec Tech Team May 07, 2018

The Doble F6150e Relay Testing System offers the ability to perform in both;

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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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Periodic Testing with Doble F6150 Ensures Relays Continue to Perform

by Protec Tech Team February 06, 2018

The function of a protective relay is to detect abnormal power system conditions and initiate appropriate actions, such as the tripping of a circuit breaker. 

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Consider Megger MRCT Rental for Relay, Current Transformer Testing

by Protec Tech Team March 15, 2017

The Megger MRCT Relay and Current Transformer Tester is a portable unit used to perform demagnetization, ratio, saturation, winding resistance, polarity, phase deviation, and insulation tests on current transformers, and automatically calculates ratio errors, saturation curves, and knee points.

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Upgraded to include additional functionality, further enhancing instrument transformer testing capabilities including:

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Rent the Omicron CMC 356 for High Amp Power Protection Relay Testing

by Protec Tech Team December 16, 2016

High amp power is what’s needed in a relay test set for proper testing of protection relays. The Omicron CMC 356 Universal Relay Test Set and Commissioning Tool can handle high burden electro mechanics on transformers reliably, and its digital technology provides an unmatched dependability even in small amp testing situations.Contact Us Now

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Rent the Doble F6051 Time Synchronizer from Protec

by Protec Tech Team May 17, 2016

The Doble F6051 Time Synchronizer is a compact, IRIG-B time protocol converter for precise time synchronization in accordance with industry and security standards. With the F6051, interior time stamping is possible. 

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Doble F6150 Offers Exceptional Relay Test Flexibility

by Protec Tech Team April 08, 2016

The testing of high impedance electromechanical relays is a challenge for any test instrument. This is especially true if an over-current electromechanical relay is being used to detect ground or earth faults, one of the most critical and sensitive protections in the system. The ground over-current relays are relied on the most when everything else fails to detect a high resistance fault in the system, therefore it is vital to ensure that the ground over current relays are working correctly.

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Rent the Doble F6150 for Safe and Reliable Relay Testing

by Protec Tech Team March 07, 2016

Used for testing protection relays and schemes, the Doble F6150 Relay Testing System is capable of performing simple through the most complex tests. The F6150 also allows for comprehensive testing using just a single test unit, without having to carry multiple tools in the field.

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Doble F6150 Relay Testing System Packed with Features and Benefits

by Protec Tech Team February 22, 2016

Conventional steady-state tests sets are only capable of testing each component of the system individually, therefore it becomes very difficult to predict the behavior of the entire system when subjected to true power system events. This results in performance uncertainties and could be the cause of misoperations.

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Protec Equipment Resources Inc.
National Headquarters
1517 West Carrier Pkwy
Suite 116
Grand Prairie, Texas 75050

Phone: 972.352.5550
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