Chapter 1: Switching Operation (To The End-User) - Reinhausen C.A.P.T. 090 Livret D'instructions

TAP CHANGER 090
The tap changer 090 is a linear tap changer which offers various possibilities of connections: bridge, linear,
star and change-over voltage S/P o Δ/Y connections.
The main characteristics are: its compactness, the simplicity of the installation, low temperature rise of the
contacts. It is suited for use in mineral oil, silicone and synthetic oils.
Voltage:
Rated voltage Tensione max
kV
20
30
CUrrent: 10 A – 30 A – 60 A
WORKING TEMPERATURE
The tap changer operates with oil-temperatures between – 25°C and +105°C.
DO NOT OPERATE WHILE TRANSFORMER IS ENERGISED!
MAINTENANCE (for the end-user)
The tap changer does not require special maintenance.
If the tap changer remains unused in a single position for a long period of time (months) during the
maintenance of the transformer and with the transformer de-energised, we recommend to first perform a
series of operations on all the positions in order to clean the surface of the contacts.
CHAPTER 1 – SWITCHING OPERATION (TO THE END-USER)
(see figure 1.1)
To change the position, after having lifted up the clamp (locking-device) (see figure 1.2),
you only have to rotate the knob without pulling it up and continue the operation up to the required new
position, and then insert and lock the clamp (locking-device) inside the right position (see figure 1.3).
Check that the 2 triangular arrows located on the knob and on the "positioning" ring correspond with each
other. It is possible to remove the knob only if it is placed in the insert/extract mechanism because an anti-
extraction device is functioning (see figure 1.4).
Voltage tests to earth
Industrial
frequency 50 Hz ImpulsE 1/50 μS
kV kV
24 50
36 70
DON'T PULL THE KNOB UP!
kV
125
170
5