Abb Current Transformer Wiring Diagram
Both designs can be mounted directly over the ilv terminals of pad mounted distribution transformers.
Abb current transformer wiring diagram. Abb s transformer protection relays are used for protection control measurement and supervision of power transformers unit and step up transformers including power generator transformer blocks in utility and industry power distribution networks. The common laws for transformers are valid. Abb library is a web tool for searching for documents related to abb products and services. Each current pole can also be described with 2 characters c1 to c9.
The cmv transformer is designed for padmounted distribution transformer metering. Abb manufactures instrument transformers according to ansi iec gost gb bs and din standards and other standards if required. Instrument transformer connections a. Abb current poles c designates a single current circuit non shorting pole with a current test jack and a black handle.
This allows them to be used in combination with measurement equipment. It is available in two external designs tapered bottom and wide bottom for adaptability to a variety of mounting arrangements. 600 volt current transformers primary current window diameter in abb type ge iti equivalent abb product bulletin page 50 to 1000 2 5 imc n a 1vap428101 db 4 5 600 to 4000 5 5 clc n a 1vap428241 db 4 5 2000 to 6000 8 25 cle n a 1vap428261 db 6 7 750 to 4000 5 5 rlc n a 1vap428281 db 8 11 200 to 4000 5 75 deh 705 n a 1vap701011 db 12 13. Current voltage relay volt meter transformer or power sub station watt meter h1 h2 x1 x2 h1 x1 h2 x2 h1 h2 x1 x2 w r r a b v r ammeter a r figure 2.
Vv the ip 5 a ratio current transformer delivers at the secondary a current is of 0 to 5 a that is proportional to the current measured at the primary ip. The current transformer is designed to connect in series with the line to transform the line current to the standard 5 amperes suitable for the meter or relay. Current transformers for a short circuited transformer the following is valid. Graphical symbols for diagrams created date.
Current poles with other color handles are available by replacing the c with the appropriate designation per chart on page 6.