overcurrent


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overcurrent

[¦ō·vər¦kə·rənt]
(electronics)
An abnormally high current, usually resulting from a short circuit.

overcurrent

An electrical current which is abnormally high, usually as a result of a short circuit.
References in periodicals archive ?
In event of overcurrent, driver initiates controlled switch shutdown with updating control with fault status, protecting the IGBT and system
For overcurrent devices rated 800 amps or less, "The next higher standard overcurrent device rating (above the ampacity of the conductors being protected) shall be permitted to be used" provided certain conditions not relevant to this discussion are met.
The settings correction is calculated according to determined dependence of settings on changing electric network parameters, separately for each type of protection (instantaneous overcurrent protection, definite time overcurrent protection, earth fault protection).
44 have these higher ampacities and the restriction on maximum rating of overcurrent devices for a given conductor size?
The system is also designed to provide standard performance data warnings on a range of conditions, such as high/low coolant temperatures, high/ low dc voltage, low oil pressure, overcurrent, overspeed, weak battery, underfrequency and up to four customer fault inputs.
Among the devices are high-voltage reed relays responding to the current changing rate, overcurrent and overvoltage protection modules, and high-current pulse transducer for metal-oxide surge arresters.
In addition, both ICs feature very rapid response times to potentially catastrophic overcurrent load events, key in mission-critical applications for the server and RAID/storage network markets.
The shorts observed on the transistors are the result of an electrical overstress (EOS), most likely an overcurrent scenario as indicated by damage observed on the failed transistor.
With so much at risk, a better understanding of overcurrent protection and the differences between fuses and circuit breakers protection is key to maintaining uninterrupted service when implementing cabinet-level power distribution units (PDUs).
This relay offers complete main and backup transmission line protection using line current differential, and a combination of four stepped-distance zones of phase and ground-distance elements in communications assisted schemes, with directional overcurrent element backup protection.
The need for flexible communications and convenient engineering access to settings and data is said to be addressed by the SEL-511C overcurrent/ reclosing relay, which combines complete overcurrent protection and multi-shot reclosing to protect lines and equipment using a sensitive and secure mix of phase, negative-sequence and ground overcurrent elements.
Non unit protection such as that given by overcurrent and distance protection on transmission and distribution lines for many years, has proved to be a very reliable form of protection, notwithstanding the limitation that its coverage does not protect the whole of the circuit, compared to unit protection schemes such as differential protection.