EN 
ES_ES 
DE 
OUR
ALLIES
COURSES
THEORETICAL AND PRACTICAL
We offer theoretical and practical courses for engineers and electrical technicians on electrical concepts and testing.
SERVICE OF
LABORATORY
We have a complete laboratory for calibration and repair of test instruments with which we provide after-sales support.
PFIFFNER
Current Transformers for Outdoor Use
Technical Characteristics:
- Paper-Oil and SF6 Gas Insulation.
- From 24 to 550 kV.
- Minimal oil volume, high grade mineral oil and PCB-free.Instrument transformers (CT/PT)
- The active part is located in the transformer head enclosure.
- Fine graduation nozzle.
- Stainless steel expansion bellows
- Ratio change through primary (optional Secondary).
- Housing explosion tested.
- Precise control of the electric field and prevention of local partial discharges through the fine graduated nozzle.
- Increased safety by preventing subsequent arching formation.
- High operational safety, as there are no live parts in the isolator.
Type
- JOF T (24 -123) kV Outdoor Use, insulated in Paper - Oil
- JOF (24 - 550) kV Outdoor Use, insulated in Paper - Oil
- JGF (245 - 550) kV Outdoor use, insulated in SF6 Gas
Inductive Voltage Transformers for Outdoor Use:
Technical Characteristics:
- Paper-Oil and SF6 Gas Insulation.
- From 24 to 550 kV.
- Work in low induction
- Active part located in the inner enclosure of the transformer.
- Fine graduation nozzle.
- Stainless steel expansion bellows
- With open delta winding and damping unit, ferro-resonance can be minimized.
- Large secondary terminal box.
Type
- EOF (24 -245) kV Outdoor Use, insulated in Paper - Oil
- EGF (245 - 550) kV Outdoor use, insulated in SF6 Gas
Capacitive Voltage Transformers for Outdoor Use
Technical Characteristics:
- Insulation Paper -Oil
- From 72 to 550 kV.
- Ferro-resonance free.
- Carrier Wave Coupling Capacitor (PLC)...
- Protected against sudden overvoltage transients on the High side
Type
- ECF (72 - 550) kV Outdoor Use, Insulated in Paper - Oil
- ROF (72 - 550) kV Resistive Divider Outdoor Use, Pape Insulated - Oil
Combined transformers for outdoor use
Technical Characteristics:
- SF6 gas insulation.
- From 24 to 550 kV.
- It combines all the advantages of current and voltage transformers.
- Guaranteed accuracy throughout the service life.
- Reduced transportation and installation costs.
- Requires less space for installation.
Type
- EJOF (24 - 170) kV Outdoor Use, Insulated in Paper - Oil
- EJGF (245 - 550) kV Outdoor Use, Insulated in SF6
BRANDS REPRESENTED
PRODUCTS / Pfiffner
CURRENT TRANSFORMERS
Pfiffner current transformers, from 24 to 550 kV, offer accurate measurement and reliable protection in high-voltage networks.
JOF T (24 -123 kV)
External current transformer, oil-paper insulated, ideal for accurate measurement in medium voltage networks.
INDUCTIVE VOLTAGE TRANSFORMERS
Pfiffner EOF and EGF inductive voltage transformers, with oil-paper or SF6 gas insulation, guarantee accuracy and safety in substations up to 550 kV.
CAPACITIVE VOLTAGE TRANSFORMERS
Pfiffner ECF capacitive voltage transformers, ideal for networks from 72 to 550 kV, offer thermal stability and accuracy in measurement and protection.
RESISTIVE CAPACITIVE VOLTAGE DIVIDER
Pfiffner ROF capacitive-resistive voltage dividers, with oil-paper insulation, provide accurate and reliable measurement in high voltage applications.
COMBINED TRANSFORMERS
Pfiffner EJOF and EJGF combined transformers, with oil-paper or SF6 insulation, integrate current and voltage measurement in a single compact and efficient unit.
CONTACT US
Contact our team for more information about our products. Pfiffner.
Jimmy Ibañez
University of the North
Director Pfiffner Lines
(+57) 6014864030
Ext: 1126