Applications assessment of pulse closing technology

Goodman, Frank R.; McCarthy, Christopher

doi:10.1049/cp.2009.1126

Cited by 8 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pulse testing operation initiates a three-phase pulse and inverse-pulse test of each pole separately to evaluate the line status. This is accomplished by a sub-cycle close-open operation of switchgear contacts [3]. This operation will generate a pulse with a duration of 0.25-0.45 cycles which reduces the injected energy during fault testing and prevents damage to equipment.…”

Section: A Pulse Testing Operationmentioning

confidence: 99%

See 1 more Smart Citation

Event analysis of pulse-reclosers in distribution systems through sparse representation

Raoufat

Taalimi

Tomsovic

et al. 2017

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP)

View full text Add to dashboard Cite

The pulse-recloser uses pulse testing technology to verify that the line is clear of faults before initiating a reclose operation, which significantly reduces stress on the system components (e.g. substation transformers) and voltage sags on adjacent feeders. Online event analysis of pulse-reclosers are essential to increases the overall utility of the devices, especially when there are numerous devices installed throughout the distribution system. In this paper, field data recorded from several devices were analyzed to identify specific activity and fault locations. An algorithm is developed to screen the data to identify the status of each pole and to tag time windows with a possible pulse event. In the next step, selected time windows are further analyzed and classified using a sparse representation technique by solving an 1-regularized least-square problem. This classification is obtained by comparing the pulse signature with the reference dictionary to find a set that most closely matches the pulse features. This work also sheds additional light on the possibility of fault classification based on the pulse signature. Field data collected from a distribution system are used to verify the effectiveness and reliability of the proposed method.

show abstract

Section: A Pulse Testing Operationmentioning

confidence: 99%

“…substation transformers, lines, etc. ), eliminates conductor slaps and reduces voltage sag on adjacent feeders [3]. This device is a unique alternative to conventional automatic reclosers and has the ability to work in stand-alone mode as a fault interrupter.…”

Section: Introductionmentioning

confidence: 99%

Event analysis of pulse-reclosers in distribution systems through sparse representation

Raoufat

Taalimi

Tomsovic

et al. 2017

2017 19th International Conference on Intelligent System Application to Power Systems (ISAP)

View full text Add to dashboard Cite

show abstract

“…In contrast to communication-based schemes, a pulse closing method was proposed by McCarthy et al to reduce the mechanical and thermal stresses on a system [11], [12]. To implement this method, utilities need to install a point-onwave controller, a pulse-generating mechanism, and a rather complex energy-calculating algorithm to each phase of every protection device, which burdens utilities with additional investment.…”

Section: Fig 1 a Traditional Five-recloser Loop Schemementioning

confidence: 99%

New feeder automation scheme using VIT reclosers and VIT sectionalizers

Lee

Meliopoulos

Lee³

2013

2013 IEEE Grenoble Conference

View full text Add to dashboard Cite

Traditionally, a coordination scheme of circuit breakers (CBs), reclosers, and sectionalizers using time current curves has been widely used for radial networks with a single supply site or loop networks with two distribution feeders tied by a normally open tie recloser. However, conventional schemes that rely only on current information reclose onto a fault. This major drawback occurs when a normally open tie recloser closes onto the other supply of the system because the load side recloser closest to the fault location is not able to locate the fault condition. This paper proposes a new circuit breaker, recloser, and sectionalizer coordination scheme, referred to as the voltage, current, and time (VIT) scheme. Integral parts of the VIT scheme are strategically applied counters and timers on the protection devices. The VIT protection devices can detect a fault condition from both upstream and downstream of a fault location and assist in isolating only the faulted part of the circuit.Index Terms--Power distribution faults, power distribution lines, power system reliability, power system protection, power system restoration.

show abstract

“…During this process, a small current pulse of 3-8 ms duration is generated on the line, and this current pulse could be used to determine whether the fault still exists. In [15][16][17], the principle and technical advantages of pulse-closing technologies are introduced in detail, whereas there are very limited studies on how to design the circuit breaker with such pulse-closing techniques.…”

Section: Introductionmentioning

confidence: 99%