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PFF Series

Transformer Secondary Bushing

  • for indoor service
  • air to oil environment
  • up to 2.5kV/45kV BIL
  • up to 6000 amps
  • 3.00” – 5.00” below flange diameter
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Voltage (kV)
BIL (kV)
Current (Amps)
No. of Mounting Holes
Drawing Purchase
117-001-11 - 2.5 45 1600 - Request Quote
117-010-11 - 2.5 45 1600 - Request Quote
117-022-11 - 2.5 45 3600 - Request Quote
117-022-12 - 2.5 45 3600 - Request Quote
117-024-11 - 2.5 45 2500 - Request Quote
117-024-12 - 2.5 45 2500 - Request Quote
117-032-11 - 2.5 45 3600 - Request Quote
117-032-12 - 2.5 45 3600 - Request Quote
117-033-11 - 2.5 45 3600 - Request Quote
117-033-12 - 2.5 45 3600 - Request Quote
117-034-11 - 2.5 45 2500 - Request Quote
117-034-12 - 2.5 45 2500 - Request Quote
117-043-11 - 2.5 45 3600 - Request Quote
117-043-12 - 2.5 45 3600 - Request Quote
117-534-11 - 2.5 45 4500 - Request Quote
117-536-11 - 2.5 45 4500 - Request Quote
117-544-12 - 2.5 45 5000 - Request Quote
117-546-12 - 2.5 45 5000 - Request Quote
117-600-13 - 2.5 45 5000 4 Request Quote

General Description
- Voltage ratings up to 2.5kV
- Current rating 6000A
- Flammability rating, UL 94 V0, V1
- Designed and tested to meet applicable CSA, IEC, IEEE standards

Applications
The PFF series bushings are designed for indoor service, for ambient temperatures between -5°C and +75°C. Applications include:
- Bushing for liquid filled transformers
- For enclosed applications that are not exposed to sunlight

Construction
- Cast in high dielectric strength Bis-A epoxy
- Positive oil seal
- Tin plated electrolytic copper conductors are standard. See options tab for alternatives.
- Oil side machined contact surface
- Air side threaded, inline or brazed spade
- Externally clamped mounting style is standard. A 4 hole mounting flange is available on some styles.

Conductor Terminations

Milled flat or spade connections are available for many internal and external terminations.

Plating

Tin plated conductors are standard for transformer bushings. Available alternatives are silver or non-plated conductors.

Accessories: Clamps and Gaskets

- 1/8” or 1/4" thick nitrile gaskets are available upon request - Aluminum or stainless steel clamps are available upon request