Description
E-923A611G02-CZ ABB TJO 7 Outdoor voltage transformer Primary voltage:20125/34500GY Secondary voltage:115/67.08 Metering accuracy:0.3Y/0.3Y 1500C
The TJO 7 is a robust voltage transformer that uses ResiVolt™ transient resistant technology for line-to-ground applications, with an enhanced design for operation in renewable and frequent line switching installations. The TJO 7 is equivalent to type VOG-20BR.
Manufacturer: ABB Group
Manufacturer Part Number: E-923A611G02-CZ
Datasheet: Datasheet
Product features:
• 34.5 kV, outdoor
• 200 kV BIL, 60 Hertz
• Creep: 44.1” (1120 mm)
• Strike distance: 27.8” (106 mm)
• Approximate weight: 115-121 lbs (52-55 kg)
Industry leading performance
• Superior withstand capability against steep wave
power network transients for improved reliability
and increased safety in renewable metering and
recloser applications, as well as areas where increased line switching is present
• Enhanced creep distance and intelligent shed design minimize flashover potential and provide superior heat dissipation
• Encapsulated in field-proven HCEP material (hydrophobic cycloaliphatic epoxy) to deliver unparalleled performance in outdoor applications, including heavily polluted and coastal environments
Application
• Designed with ResiVolt technology to withstand
challenging environments where very fast transient over-voltages (VFTO) are present, such as
those caused by inverters and line switching devices
• Optimal solution for line-to-ground metering applications; offers superior performance and compact design
Terminals
The primary H1 bushing features an M12 metric stud
type terminal. The H2 terminal is internally grounded
to the baseplate. The secondary terminals are M6
metric clamp type and are located in a secondary
junction box. The TJO 7 is available with two variants of junction box – aluminum box with metric
PG21 conduit hubs as shown or non-metallic junction box with a sealed plastic cover, the same as the
VOG-20BR. Terminal markings are per IEEE C57.13
(H1, X1).
Mounting
• Unit can be mounted in the following positions:
– upright
– cantilever
– upside down
• Stress relief devices should be used to support cable connections where applicable
• Aluminum baseplate with the same mounting dimensions as VOG-20B and VOG-20BR
Standards
• The transformers are designed and manufactured
to conform with the requirements and recommendations of the following standards:
IEEE C57.13-2016, IEC, EN, VDE, ANSI, BS, GOST,
ČSN and PN-EN.
• Meets and exceeds IEC 61869-3, clause 7.2.3 and
CAN/CSA 411.1, clause 6.6 requirements for basic
impulse and fast impulse transient withstand.
