Operation range 3 kV to 36 kVDetails
Line crews need not be exposed to high voltage conductors and hot transformer fluidsDetails
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.
Cutouts and Combos
This type L cutouts are available in both polymer and porcelain designs, which provide reliable overcurrent…Details
This type L cutouts are available in both polymer and porcelain designs, which provide reliable overcurrent protection for primary distribution circuits. Overcurrent protection safeguards an electric system from excessive currents produced by abnormal conditions such as faults, line or equipment overloads, or equipment failures.
- 15 KV : 110 kV BIL
- 27 KV : 125 kV BIL
- 27 KV : 150 kV BIL
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.
- Carbon Steel :
- Stainless Steel :
- Hot Dip Galvanized :
Exceeds protective levels offered by standard metal oxide varistor arresters.Details
Heavy-duty Distribution Class Under-oil MOV ArresterDetails
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.
- 3 KV To 27 KV : 2.55 kV To 22 kV MCOV
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.
- 175 V : 175 V MCOV
- 240 V : 240 V MCOV
- 480 V : 400 V MCOV
- 650 V : 540V MCOV
IEC Distribution Arrester Class 1
Operation range 3 kV To 36 kVDetails
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.
- 5 PSI : 35 SCFM
- 10 PSI : 35 SCFM
- 10 PSI : 50 SCFM
- 10 PSI : 60 SCFM
line crews need not be exposed to high-voltage conductors and hot transformer fluids.Details
Externally operated series multiple switch is used to change connection of de-energized transformer windings between series and parallel to provide different common transformer voltage ratios.
Standards: The IFD conforms to: IEEE C57.12.20, CSA C2.2, IEC 61936-1Details
GreenCap® Series now makes easy to distinguish the NEB fluid filled transformers from the Mineral Oil filled transformers.Details