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Polymeric distribution-class arresters with UltraSIL polymer housed. Available in Normal Duty, Heavy-Duty and Riser Pole classifications,
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Tap Changers
Line crews need not be exposed to high voltage conductors and hot transformer fluids
Details
Externally operated one-, two- and three-phase under-oil tap changer switch family eliminates many of the hazards associated with manual internal tap changing of distribution transformers.
Specifications
- 100 A : 150kV BIL
- 150 A : 150kV BIL
- 300 A : 150kV BIL
Documents
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Magnex Interrupter
The MagneX Interrupter combines safety and efficiency with economic operation.
Details
One, Two & Three-Phase Magnex Interrupter. The magnex Interrupter protects distribution transformers from overloads and secondary faults. It can also be utilized as a transformer turn on-off switch.
Specifications
- Single Phase : 10kVA To 167kVA
- Two Phase : 10kVA To 167kVA
- Three Phase : 45kVA To 2000kVA
Documents
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Radiators
Maximum flexibility, available in two types: Integral Header (IHR) (9, 12, and 15 inches wide) and Welded…
Details
Maximum flexibility, available in two types: Integral Header (IHR) (9, 12, and 15 inches wide) and Welded Header (12 and 15 inches and 520mm wide). The 520mm provides a DIN Standard radiator configured to meet North American requirements. Standard center line mounting lengths range from 21 to 180 inches.
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Evolution Arrester
Exceeds protective levels offered by standard metal oxide varistor arresters.
Details
The Evolution surge arrester uses specially formulated and highly durable Metal Oxide Varistors (MOVs) in combination with a proprietary insulating ceramic ring assembly.
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Under-oil MOV arrester is designed in accordance with ANSI/IEEE C62.11 heavy-duty distribution class requirements. It is designed for either horizontal or vertical mounting inside the distribution transformer tank to eliminate the difficulties associated with externally mounted arresters.
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Low Voltage Arrester
Is available in three design configurations: external mount, metal enclosed, and internal mount.
Details
StormTrapper H.E. (High Energy), low voltage distribution class surge arresters are designed to provide surge protection at distribution transformer secondary bushings, service entrance locations, and any other electrical apparatus connected to a secondary voltage source.
Specifications
- 175 V : 175 V MCOV
- 240 V : 240 V MCOV
- 480 V : 400 V MCOV
- 650 V : 540V MCOV
Documents
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Polymeric IEC distribution arrester class 1, Use Metal Oxide Varistors (MOVs) having excellent electrical properties, these arresters provide superior overvoltage protection for MV distribution systems.
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Pressure Relief Valves
ANSI and REA Standards specify pressure relief valves for oil filled equipment.
Details
The Heartland pressure relief valve relieves excessive pressure in transformers, regulators and other electrical equipment.
Specifications
- 5 PSI : 35 SCFM
- 10 PSI : 35 SCFM
- 10 PSI : 50 SCFM
- 10 PSI : 60 SCFM
Documents
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Used in series with a Bay-O-Net type fuse or MagneX Interrupter. Isolation links are not fuses and do not have an interrupting rating. During a transformer failure, the isolation link will melt so that the opened primary circuit of a faulted transformer cannot be re-energized by the line crew.
Documents
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ELSP Current-limiting Backup Fuse
Used in series with low current primary protection devices.
Details
The ELSP fuse is designed for use in transformer oil, Envirotemp FR3 fluid, or an approved equivalent. The fuses highly efficient current limiting section minimizes the effects of high fault current stresses on equipment and the distribution system.
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The IFDTM is a sensor that detects internal arcing faults in distribution transformers. The sensor releases a highly visible orange signal that shows the line worker the transformer status before re-energizing.
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GreenCap Valves
GreenCap® Series now makes easy to distinguish the NEB fluid filled transformers from the Mineral Oil filled transformers.
Details
This valve is designed specially to be used in transformers filled with natural ester fluids such as the FR3. Ensures compatibility and flow requirements for these fluids.
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Samrakshana breaker provides overload and short circuit protection for both pad mounted and pole type transformers. Wall mounting. The bimetal element is mounted as close as possible to the top oil level, permitting maximum thermal protection.