A CSH30 is a torus with a ratio of 1/470. The recovered signal has the same nature as the input signal but with an amplitude divided by 470.
If the CSH30 is placed on a balanced network the output signal is very low, close to 0.
CSH 30 is when it is used it should connect to terminal 17-18 as CSH120 or CSH200 as well.
So, all these CT ranges(those which are inside CCA634, CSH 30 CSH 120 and CSH200 ) do not have a magnetic core, they are designed for different specific CT ratio but they have the same accuracy class which is:
±5% at 20°C (68°F)
±6% max. from -25°C to 70°C
(-13°F to +158°F)
However, to keep them into declared accuracy class the end-user should do the wirings as it is mentioned into Sepam 80 Installing manual, for instance, SEPED303003EN, page 41.
ID => FA179183_en
Title => What is the maximum current value which can go through CSH30 primary (P1-P2)?
URL => http://www2.schneider-electric.com/support/index?page=content&country=APS&lang=en&locale=en_US&id=FA179183
ID => FA239687_en
Title => Sepam "I0" (Io) inputs for CSH30 and CSH120 / CSH200 - can one perform secondary injection tests on these inputs for Series 20, 40, and 80 relays?
URL => http://www2.schneider-electric.com/support/index?page=content&country=APS&lang=en&locale=en_US&id=FA239687
If the CSH30 is placed on a balanced network the output signal is very low, close to 0.
CSH 30 is when it is used it should connect to terminal 17-18 as CSH120 or CSH200 as well.
So, all these CT ranges(those which are inside CCA634, CSH 30 CSH 120 and CSH200 ) do not have a magnetic core, they are designed for different specific CT ratio but they have the same accuracy class which is:
±5% at 20°C (68°F)
±6% max. from -25°C to 70°C
(-13°F to +158°F)
However, to keep them into declared accuracy class the end-user should do the wirings as it is mentioned into Sepam 80 Installing manual, for instance, SEPED303003EN, page 41.
ID => FA179183_en
Title => What is the maximum current value which can go through CSH30 primary (P1-P2)?
URL => http://www2.schneider-electric.com/support/index?page=content&country=APS&lang=en&locale=en_US&id=FA179183
ID => FA239687_en
Title => Sepam "I0" (Io) inputs for CSH30 and CSH120 / CSH200 - can one perform secondary injection tests on these inputs for Series 20, 40, and 80 relays?
URL => http://www2.schneider-electric.com/support/index?page=content&country=APS&lang=en&locale=en_US&id=FA239687
Released for:Schneider Electric India
