LITTELFUSE STARTCO

Littelfuse Startco Powr-Gard

In 2008 Littelfuse, Inc. purchased Startco Engineering Ltd. The company, which is based in Saskatoon, Saskatchewan, is a recognized leader in ground-fault protection products and custom-power distribution centers that are used in industrial manufacturing and mining applications. Littelfuse acknowledged that the acquisition of Startco will strengthen their position within the industrial protection business and growing mining industry with Startco’s line of ground-fault and motor protection relays.

 

One of Littelfuse Startco’s main products is the Protection Relay which includes a comprehensive line of motor and pump protection relays, arc-flash relays, ground fault relays, feeder protection, pump controllers, time delay relays, flashers and tower lighting, and more to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from injury due to electrical faults. Professionals in construction, manufacturing, mining, oil & gas, solar, and many more industries rely on Littelfuse Startco for rugged, lasting protection for their designs and critical applications.

 

Arc Flash Relays are an effective defense against dangerous arc flash events since they can detect an arc flash in less than 1 millisecond. These relays provide:

  • A redundant internal trip path with two internal trip paths for added reliability
  • Health monitoring which continuously monitors connection to trip coil to ensure path is intact
  • Reliable Light Detection with two types of light sensors (point and fiber-optic) for different application
  • Upstream tripping ability if the local breaker fails to clear the fault
  • Optional current detection for fault verification to avoid nuisance tripping
  • Tie breaker tripping of both incoming feeder and tie breaker when arc is detected
  • Zone tripping give the ability to trip 2 separate zones with 1 relay

 

Most of Littlefuse Startco’s products are manufactured in Canada with the exception of SE-105, SE-107, and SE-325, which are now manufactured in the United States.

Product Image
Catalog #
Description
Price
NEUTRAL-GROUNDING-RESISTOR MONITOR | Series: SE-330
SE-330-00-00 is an advanced ground-fault and neutral-grounding resistor monitor with a supply voltage ac of 65–265 and a supply voltage dc of 85–275. Network communications is offered via USB.
Description The SE-330 is an advanced ground-fault and neutral-grounding- resistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and that it has not been bypassed or shorted. An open NGR renders current- sensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. A shorted NGR results in higher-than-expected ground-fault current. The SE-330 can be used with low- and medium-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For high-voltage applications, use the SE-330HV. For applications that require conformance to Australian standards, use the SE-330AU. Resistor Monitoring The SE-330 combines the measured values of resistance, current, and voltage to continuously determine that an NGR is intact. It is able to detect an open or shorted resistor with or without a ground fault present. Sensing resistors are matched to the system voltage and are used to monitor NGRs on systems up to 72 kV. Ground-Fault Monitoring The SE-330 uses an application-appropriate current transformer to reliably detect ground-fault currents as small as 100 mA. Discrete- Fourier Transform (DFT) filtering ensures that false trips due to harmonic noise from adjustable-speed drives do not occur. Should the resistor open and a ground fault subsequently occur, the SE-330 will detect the fault through voltage measurement, while other current-only sensing relays would be ineffective. Pulsing Ground-Fault Location The SE-330 is capable of controlling a pulsing contactor, which is used to switch the NGR resistance in a pulsing-compatible NGR package. The resulting ground-fault current is distinguishable from charging currents and noise and will only appear upstream of the ground fault, making fault location fast and easy, even without isolating feeders or interrupting loads
$4,889.30