Cdg 61 Relay Manuals
Earth-fault relay CDG11 (English Electric)
Damped induction disc relay, which has an adjustable inverse time/current characteristic with a definite minimum time. CDG 21and CDG 61 are 1 & 3 pole versions of CDG11 with highset instantaneous unit respectively. The relay has a high torque movement combined with low burden and low overshoot. The relay disc is so shaped that as it rotates the. Alstom Over current & Earth fault Protection relay CDG31EG011SB(M) Powerfactorshop.com (Online Solution for electrical needs) is owned and operated by System Controls For Bulk Order: +541 00 +393 : email protected.
Earth-fault relay CDG11 (English Electric)
Cdg61 Relay Manual
![Manual Manual](/uploads/1/1/2/2/112289135/636202705.jpg)
Hello everyone,
I have a hard time understanding the settings of the relay CDG11AF128A5.
A- The setting for the current is done by a plug which selects .2, .3, .4, .5, .6, .7 or .8 Amps (sec.current from the currenttransformer 2500A/1A). In our relay the plug is set to .2 (equals a 500A-earth-fault current).
B- The 'time-multiplier' is set to 1.0 (setting by a 'settingwheel' possible from 0.1 to 1.0 ).
C-Then there is a table on the front-display which gives the relation between 'Plug setting multiplier'(scale goes from 1 to 20) versus 'Time in seconds' (scale goes from 30 to 2.2). I would aspect a 'plug setting multiplier' for the time-setting, but I can't find it.
Is there someone how has expiercence with this relay ?
Does the relay not match the front-display ? Or is there another explanation ?
Thx in advance,
Filip
I have a hard time understanding the settings of the relay CDG11AF128A5.
A- The setting for the current is done by a plug which selects .2, .3, .4, .5, .6, .7 or .8 Amps (sec.current from the currenttransformer 2500A/1A). In our relay the plug is set to .2 (equals a 500A-earth-fault current).
B- The 'time-multiplier' is set to 1.0 (setting by a 'settingwheel' possible from 0.1 to 1.0 ).
C-Then there is a table on the front-display which gives the relation between 'Plug setting multiplier'(scale goes from 1 to 20) versus 'Time in seconds' (scale goes from 30 to 2.2). I would aspect a 'plug setting multiplier' for the time-setting, but I can't find it.
Is there someone how has expiercence with this relay ?
Does the relay not match the front-display ? Or is there another explanation ?
Thx in advance,
Filip