Gas-insulated Instrument Transformers 362-550kV [TAG, TVG]

Product catalog summary

Overview: The document provides technical specifications and characteristics of SF6 insulated current and voltage transformers designed for outdoor installation in high voltage substations ranging from 362 kV to 550 kV. These transformers are suitable for air-insulated high voltage substations.

Characteristics:

Designed for outdoor installation with SF6 and SF6-ppr insulation.
Constructed with cast aluminum housings.
Conforms to international standards for pressurized enclosures.
Explosion-proof and maintenance-free design.

Reliable Design:

Proven SF6 insulation technology.
Capable of withstanding phase-to-earth voltage at atmospheric internal gas pressure.
Earthquake resistant with computer technology and finite element analysis for studying electric fields, mechanical stresses, and seismic phenomena.
ISO 9001 certified quality system.

Advantages:

High operational reliability and safety.
Equipped with a pressure relief device.
Remote supervision of insulation condition through internal gas density monitoring.
No aging issues.

Technical Specifications:

Voltage transformers (TVG) available for system voltages of 362 kV and 420 kV with specific test voltages and dimensions.
Current transformers (TAG) available for system voltages of 362 kV, 420 kV, and 550 kV with various sizes (Light, Medium, Large) and specific test voltages and dimensions.
Electrical characteristics include up to 4 secondary windings, metering accuracy classes (0.2, 0.5, 1), and protection accuracy classes (3P, 6P).
Primary current up to 4000 A and thermal current up to 63 kA for 1 second.

Contact Information: The document lists contact details for Trench Group's offices in Italy, Austria, Brazil, Canada, France, Germany, and Switzerland for further inquiries.

Catalog excerpts

Instrument Transformers

Open the catalog to page 1

SF6 Insulated Current and Voltage Transformers for Air Insulated High Voltage Substations (362 kV to 550 kV) Characteristics: o Outdoor installation o o o o o o SF6 and SF6-ppr insulation Cast aluminium housings Conformity to the main international standards for design, test and construction of pressurised enclosures For current transformers: Head type design Explosion proof Maintenance free Reliable design: o o o o o Well proven experience with SF6 insulation technology Dimensioned to withstand phase-to-earth voltage at atmospheric internal gas pressure Earthquake resistant Computer technology...

Open the catalog to page 2

Gas-insulated Instrument Transformers 362-550kV [TAG, TVG]-3

TAG SF Insulated Current Transformers 6 TAG Medium size TAG Light size TAG Large size Test Voltages Highest sistem voltage Power frequency kV (r.m.s.) kV (r.m.s.) LIWL Dimensions and weight SIWL number of cores 550 680 1425 1550 1050 1175 1 to 6 Medium 5260 1500 1 to 6 5610 2500 1 to 8 5300 1150 1 to 6 Medium 5550 1500 1 to 6 5900 2500 1 to 8 5300 1150 1 to 6 Medium 5550 1500 1 to 6 Large TAG 550 630 950 1050 Light 420 1175 5010 Large TAG 420 510 Weight kg Light 362 A mm Large TAG 362 size Light kV (peak) 5900 2500 1 to 8 Electrical Characteristics for all type of current transformers: o primary...

Open the catalog to page 3

Gas-insulated Instrument Transformers 362-550kV [TAG, TVG]-4

17014 Bragno-Cairo Montenotte (SV) - Italy E-Mail [email protected] □ Trench Austria GmbH E-Mail [email protected] □ Trench Brasil LTDA E-Mail [email protected] Coil Product Division Scarborough, Ontario E-Mail [email protected] Instrument Transformer Division E-Mail [email protected] E-Mail [email protected] □ Trench Germany GmbH. E-Mail [email protected] For more information, please contact our Customer Support Data and characteristcs indicated in this publication may be varied without notice E-Mail [email protected]

Open the catalog to page 4