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Current Transformers are designed to produce a scaled down replica of the current in the power line and isolate the measuring instruments, meters, relays, etc. from the high voltage power circuit.
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Range
- Insulation voltage up to 24 kV.
- Primary nominal currents up to 12.000 A. Higher current possible.
- Secondary currents 1 and 5 A.
- Frequencies: 50 Hz, 60 Hz.
Applications
- Power generation.
Advantages
- Measuring and protection applications.
- Designs with good behaviour in ambient temperatures up to 80ºC.
- Stainless steel screws available.
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Indoor current transformers up to 40.5 kV
Description
Comprehensive range of indoor current tranformers, for measurement and protection.
Compliance with IEC 60044-1 standard
Rated current: from 5 to 5000 A
Reference voltage for isolation: up to 36kV - 40.5kV Optimised design et perfomances:
Standard shape
Optimised dimensions
Suitable for use in all type of MT cubicle and in harsh environments:
Metalclad units
Metal enclosed units
Environments with potentially explosive atmosphere.
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Outdoor Medium Voltage Instrument Transformers. Dry Type
Dry Insulation Transformers are designed to produce a scaled down replica of the current in the power line and isolate the measuring instruments, meters, relays, etc. from the high voltage power circuit.
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Outdoor current transformers up to 40.5 kV
Description
Comprehensive range of outdoor current tranformers:
Compliance with IEC 60044-1 standard
Rated current: from 5 to 2500 A
Reference voltage for isolation:up to 40.5kV
Optimised design et perfomances:
Creepage distance in accordance with pollution level IV
Extremelly good ageing behaviour thanks to silica surface coating.
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Fire resistant Cast resin transformers are well suited for installation in high-rise buildings, hospitals, underground tunnels, school, steel factories, chemical plants and places where fire safety is a great concern. Hazard free to the environment, cast resin transformers have over the years proven to be highly reliable.
Our Transformer Range :
- Distribution range from 50kVA to 3000kVA
- Power range from 3000kVA to 16MVA
- Primary voltages up to 36KV
Basic Features :
- Free standing cast resin transformer complete with bi-directional rollers
- Set of PT100 Ohm
- Naturally ventilated steel enclosure (IP21)
- Bottom entry gland plates for HV & LV terminations
- Naturally cooled (AN)
- Tap changer (Manual links)
- Rating plate
- Lifting points
- Earthing point
- Compliant to IEC 726
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Marine, Traction, Industrial application.
Cast Resin or Dry Type (vacuum impregnation technology).
Voltage up to 36kV and power up to 20MVA.
From IP00 to IP55.
AN-AF-AFWF cooling systems.
AL or CU windings.
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Celme design and development transformers according to the technical inquiries of the customer.
In particular, in the last years, this type of transformers is becoming the real core business for the factory. We have made solutions for:
- Rectifier transformer
- Transformers for converter duty cycle
- transformers for engine starting phase
- transformers for cogeneration duty cycle
- transformers for photovoltaic plant
- transformers for wind plant
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Cast resin distribution transformers: Power ratings from 100 kVAto 10,000 kVA/36 kV
An alternative option to liquid-filled distribution transformers with the emphasis on reduced environmental impact and increased fire safety.
Cast resin distribution transformers are manufactured in Mechelen (Pauwels Trafo Belgium N.V)
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The LS Industrial Systems' CAST RESIN Transformer has succeeded in combining the advantage of oil-filled and conventional dry type transformers, which are fabricated with an epoxy resin. The windings are completely embeded under vacuum conditions.
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Liquid-filled distribution transformers: Power ratings from 15 kVA to 10,000 kVA/36 kV
Cast resin distribution transformers: Power ratings from 100 kVAto 10,000 kVA/36 kV
An alternative option to liquid-filled distribution transformers with the emphasis on reduced environmental impact and increased fire safety.
Special transformer types:
- single phase transformers
- autotran sformers
- multiple voltage transformers (mostly dual voltage transformers)
- medium voltage/medium voltage transformers
- transformers feeding a static converter (rectifier transformers)
- transformers fed by a static converter
- phase-shifting transformers
- earthing transformers
- special transformer connections
- transformers feeding two (or more) separate systems
- transformers with core in amorphous metal (only oil-filled transformers)
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DISTRIBUTION TRANSFORMERS
CHARACTERISTICS:
Power: 15 to 300 kVA
High Voltage: 15 and 24,2 kV
Low Voltage: 380/220 or 220/127V
Standards: according to ABNT / IEC
APPLICATION:Power Distribution
SELF-PROTECTED TRANSFORMERS
CHARACTERISTICS:
Power: 45 to 150 kVA
High Voltage: 15 or 24,2 kV
Low Voltage: 380/220; 220/127V
Standards: according to ABNT / IEC
APPLICATIONS:Protection of distribution systems against overloads;
Short-circuit Protection for the secondary network;
Protection against internal transformer faults.
UNDERGROUND TRANSFORMERS
CHARACTERISTICS:
Power: 150 to 2.000 kVA
High Voltage: 15 or 24,2 kV
Low Voltage: 216.5/125; 220/127; 380/220; 400/231V
Standards: according to NBR 9369/1986 ABNT
APPLICATIONS:Installation into chambers, at any level;
Can be eventually immersed in water.
INDUSTRIAL TRANSFORMERS
CHARACTERISTICS:
Power: 500 to 5000 kVA
High Voltage: 15; 24,2; 36,2 or 72,5 kV
Low Voltage: 4160/2402; 440/254; 380/220; 220/127V
or according to customer specifications.
Standards: according to ABNT / IEC
APPLICATIONS:Industrial Substations.
POWER TRANSFORMERS
CHARACTERISTICS:
High Voltage: up to 550 kV
Top Rate: from 5 to 300MVA
Standards: IEC / ANSI
APLICATIONS: Utilities Substations
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| ... products without technical information |
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Fire resistant Cast resin transformers are well suited for installation in high-rise buildings, hospitals, underground tunnels, school, steel factories, chemical plants and places where fire safety is a great concern. Hazard free to the environment, cast resin transformers have over the years proven to be highly reliable.
Our Transformer Range :
- Distribution range from 50kVA to 3000kVA
- Power range from 3000kVA to 16MVA
- Primary voltages up to 36KV
Basic Features :
- Free standing cast resin transformer complete with bi-directional rollers
- Set of PT100 Ohm
- Naturally ventilated steel enclosure (IP21)
- Bottom entry gland plates for HV & LV terminations
- Naturally cooled (AN)
- Tap changer (Manual links)
- Rating plate
- Lifting points
- Earthing point
- Compliant to IEC 726
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Cast resin distribution transformers: Power ratings from 100 kVAto 10,000 kVA/36 kV
An alternative option to liquid-filled distribution transformers with the emphasis on reduced environmental impact and increased fire safety.
Cast resin distribution transformers are manufactured in Mechelen (Pauwels Trafo Belgium N.V)
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The LS Industrial Systems' CAST RESIN Transformer has succeeded in combining the advantage of oil-filled and conventional dry type transformers, which are fabricated with an epoxy resin. The windings are completely embeded under vacuum conditions.
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| ... products without technical information |
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