Relays play a critical role in the protection of electrical power systems. They are used to monitor and control the operation of power system components. For example, if a protective relay were to senses a fault condition, it could tell a circuit breaker or some other protective device to open and thereby isolate the faulted portion of the circuit.READ MORE >>
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The Doble M4000 M4100 Power Factor Insulation Analyzer sets the standard for power apparatus and insulation testing.
With its unique combination of test capabilities and artificial intelligence analysis software the M4000 M4100 is known in the industry as a highly trusted Power Factor/Tan-Delta instrument.READ MORE >>
The effective and efficient operation of a power grid is largely dependent on the relay scheme. The importance of this critical electrical component makes it essential to regularly test its health status using high-grade electrical test equipment.READ MORE >>
Time sensitive information such as protection tripping commands are a high priority and require a quick means of communication. In IEC 61850 environments, the GOOSEs (Generic Object Oriented Substation Events) are the mechanism for delivering status information. Published as multicast messages without being addressed to a specific receiver, this information is then distributed across the network allowing any IED or test set to retrieve it.READ MORE >>
Power factor tests compare the capacitive current to the resistive current used by a piece of equipment. If the capacitive current becomes large in relation to the resistive current, it indicates a potential problem with the insulation. Insulation breakdown often leads to equipment breakdown.
Protec Equipment Resources offers many power factor test sets for rent. These units apply voltage to the conductors while measuring losses to ground. By comparing the results to historical results, abnormal conditions can be easily identified. Further tests can help determine exactly where the problem exists.
While power factor testing usually involves transformers and breakers, tests can be useful on other types of equipment such as switches, motors and voltage regulators.
Each Protec office maintains a full complement of electrical test and measurement equipment. Offering equipment from all of the premiere manufacturers for rent, lease or purchase, Protec has the electrical testing equipment you need to get the job done.
Whether you're in the market for a Micro-Ohmmeter like the AEMC 6250 10A Micro-Ohmmeter, offering output up to 10 Amps, this test set is uniquely designed to conduct tests on both resistive and inductive material, with operator selection directly from the front panel.READ MORE >>
Power factor testing alows for the detection of electrical equipment insulation problems without having to make an internal visual inspection. Thus, significantly decreasing the cost of maintenance and downtime. Power factor testing is one of the best techniques for preventive maintenance.READ MORE >>
Protective relays do not generally perform until a fault or other power system problem requires that they operate to protect the power system elements. With a healthy power system faults or system problems don't occur, and the protection system may not operate for extended periods. A failure of the protection system to operate when needed can result in equipment damage, personnel hazards, and wide area disturbances or customer outages. This is why a maintenance or testing program is necessary to determine the performance and availability of a protection system.READ MORE >>