Dry-Type Bushing Current Transformers for GIS or Power Transformers
TB-1M Series
Suited to power transmission and distribution systems and intended to work with measuring or monitoring instruments, or with protective relays, these bushing CTs (BCTs) can also be used with GIS or in conjunction with power transformers bushings. Insulation tape or epoxy resin as insulation material.
About the Product
Dry-Type Bushing Current Transformers TB-1M Series, suited to power transmission and distribution systems, are intended to work with measuring or monitoring instruments, or with protective relays. These current transformers can also be used in gas-insulated switchgear (GIS) – the CT is placed in either SF6 gas or in air. Alternatively, these current transformers can be used in conjunction with power transformer bushings; in this case, the CT is immersed in insulation oil. CT sizes can be specially requested, and the customer can choose between insulation tape or epoxy resin for the insulation material. The secondary side can be equipped with either lead wires or secondary terminals.
Specifications
- Standards: IEC or IEEE
- Frequency: 50 or 60 Hz
- AC/BIL: 4/10 kV
- Multi-ratio
- Type-tested
Selection Table
* Current ratios according to IEEE C57.13
Note: Other standards and specifications available upon request
- Download Documents
-
-
CIC Company Profile
Learn about our company: history, strengths, products, global locations, and our Advanced Electricity Lab.
-
【Product Brochure】Dry-Type Bushing Current Transformers for GIS or Power Transformers (TB-1M Series)
Easy-to-print document, containing product description, specifications, and a selection table.
-
【Product Dimensions】Dry-Type Bushing Current Transformers for GIS or Power Transformers (TB-1M Series)
Download PDF for basic drawing(s) and dimensions of this product. For more detailed information, please contact CIC.
-
CT & PT Selection Guide: How to Choose a Current Transformer or Potential Transformer
How to select, based on application and power system attributes, the primary and secondary currents, burden, accuracy, rated frequency, type (indoor vs. outdoor), insulation material, etc.
-
- Related Products
-
-
Current Transformer for SF6 Gas-Insulated MOF Panel
MOF-24
For power companies. To be mounted inside the SF6 gas-insulated MOF panel of a 25.5 kV (max) power system. With 2 primary coils, this current transformer offers 2 current ratios while maintaining the required accuracy and burden rating at each current ratio. Insulated with Araldite® epoxy resin.
-
Voltage Transformer (Potential Transformer) for SF6 Gas-Insulated MOF Panel
EPF-20SH
Intended for power companies, this indoor single-phase epoxy-cast voltage transformer, or potential transformer, is designed to be mounted inside the SF6 gas-insulated MOF (Metering Outfit) panel of a 25.5 kV (max.) power system. With an added tap in the secondary winding, this VT (PT) can offer two voltage ratios (120/60:1).
-
Low-Voltage Ring-Core Protective-Type Current Transformer for Outdoor Use (Epoxy-Cast)
EO1MC20R
Outdoor, ring-core (window-type) protective (or monitoring) current transformer for power companies or HV power systems. Converting high AC currents into signals to be received by the relay. Cycloaliphatic Epoxy.
-
Low-Voltage Split-Core Protective-Type Current Transformer for Outdoor Use (Epoxy-Cast)
EO1MD20
Window-type (split-core), outdoor, protective (or monitoring) current transformer for power companies or HV power systems. Converting high AC currents into signals to be received by the relay. Cycloaliphatic Epoxy.
-
Bushing Current Transformers for 23 kV C-GIS
EO1M6, EO1M20, EO1M150
These epoxy-cast multi-ratio bushing current transformers (BCTs, or bushing CTs) are typically installed in 23 kV C-GIS (cubicle-type gas-insulated switchgear) for use with measuring or monitoring instruments, or protective relays.
-
Bushing Current Transformers for Draw-Out Circuit Breakers
HCB-2415(A), EBF-25M Series
Multi-ratio bushing current transformers (bushing CTs, or BCTs) designed for 24kV draw-out circuit breakers and to be used with measuring (or monitoring) instruments or protective relays. IEEE 0.3 B-0.9. Cast in Araldite® epoxy.
-