4
8.1.6
The electric connection is show in
Fig.4
.The relay’s connection may be made in series or in parallel
according to the connection diagram, it may be separately used also,
and users can make wire connection according to different requirements. Screw out press line nut 13 in the case of
threading, piece the cable into the wire connection from the nut hole through rubber ring 14 and screw down nut
13 after connection so that the rubber ring clips the cable and buddle them firmly with adhesive tape to prevent
from water inflow.
1,2:Signal ; 3,4,5:Tripping
Fig.4-1 QJ1\QJ4
1,2:Signal; 3,4,5,6:Tripping
Fig.4-2 QJ3\QJ12
1,2,3,4:Signal ; 5,6,7,8:Tripping
Fig.4-3 QJ13
8.2 Debugging
QJ series of relays is an important protective device of oil-immersed transformer so there are special provisions
stated for an operational unit, for example it may be only brought into service after an inspection department’s
debugging, examination, and issuing cofirming documentation, and accordingly works on debugging and oil
speed examination should be done according to pertinent regulations.
8.3.Gas Volumetric Quantity Adjustment
To change the dry reed contact’s position may adjust volumetric quantity the action of signal contact, volumetric
volume may reduce when the dry reed contact moves upwards and may increase when the dry reed contact moves
downwards. The screwd down and locked firmly after adjustmen.
8.4. Oil Speed Adjustmen
To adjust the regulating rod connected with the spring may change the pulling force of the baffle board spring,
namely the acting oil speed shall be done with a special flow rate checking facilty by professionals.
8.5. Adjustment of the Ballle Baffle Board
’
s Angle of Rotation
8.5.1.To adjust the backstop screw may change the baffle board’s angle of rotation, namely the distance
(0.5~1.0mm) between the magent and dry reed contact may be adjusted to ensure that the dry reed contact may be