Ct cans electrical. A current transformer ct is a type of transformer that is used to reduce or multiply an alternating current ac. The instrument transformers like voltage transformer and current transformer are used for connecting the electrical instruments to the measuring instrumentsthese transformers reduce the voltage and current from high value to the low value which can be measured by conventional instruments. Current transformers along with voltage or potential transformers are instrument transformersinstrument transformers scale the large values of voltage or current to small standardized.
The primary circuit can in this case also have a number of turns different from 1. In general cts step down the magnitude of primary current in circuits to a prortional secondary level that can utilized for relaying instrumentation or metering. All dimensions are in inches.
The ct can be of. Ct mounting interior can be configured for either bar type or window type donut cts. For example a ct with a ratio of 1001 would deliver 1 amp on the secondary term.
Many of the meters now are multi range. This means that the meter can sense the incoming voltage and adjust its calculations based on the incoming voltage. Integral mechanical lugs line load included.
If you remember when using the rating factor of a ct it is possible for the ct to put out 20 amps. Most meters now show the voltage on the display. Wound type as cts inside medium voltage switchgear normally are with the two terminal clamps of the primary circuit and the two terminal clamps of the secondary circuit taken outside.
If the ct lead wires need to be longer than 8 feet they can be extended. 400 amp 600v 1 phase or 3 phase 3 wire 50 kaic current transformer mounting base line side. Side gutter required for line in bottom load out bottom application 1200a and above.
It produces a current in its secondary which is proportional to the current in its primary. Ct meters also have voltage ratings. Short ct lead wires help to minimize interference from electrical noise.
Consult local utility for area acceptance. It is generally better to install the wattnode near the conductors being measured instead of extending the ct wires. Ct rated 051hs 13 closed 051hs 13 open ct metering data subject to change without notice.
If the ct lead wires are longer than necessary they can be shortened.
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