CIRCUTOR OPTIM HYB Series - Manual (Page 14)

2.1.3. SINGLE-PHASE POWER BLOCK
The single-phase power block of a OPTIM HYB unit consists of 6 to 9 groups of thyristor-diode
semiconductors + single-phase capacitor + unipolar circuit breaker.
Each single-phase group consists of a cylindrical capacitor, an aluminium cylindrical housing, 2
terminals, 1 thyristor-diode module joined to a general heatsink and the appropriate protection
element for the power of the module (unipolar circuit breaker). For more detailed information,
see section “7.- OPTIM HYP type diagram”.
2.1.4. THREE-PHASE POWER BLOCK
The three-phase power block of a
OPTIM HYB unit consists of 3 to 6 groups, each group con-
taining:
 1 three-pole electromechanical contactor, appropriate for connecting capacitive loads
(application category AC-6), with a pre-inserted impedance block to limit the capacitor's con-
nection current and fast discharging resistors to ensure a minimal residual voltage in the ca-
pacitor when it is connected.
The contactors have 1 x 230 V / 50-60 Hz (± 10 %) operation coils.
 1 three-phase capacitor, in a cylindrical aluminium housing, with a rated voltage of 440 V.
 1 three-pole circuit breaker with a calibre suitable for the stage power, with a C Curve and
Ics = 6 kA (400 V).
For more detailed information, see section “7.- OPTIM HYP type diagram”.
2.1.5. MAINS CONNECTION TERMINALS
The mains connection terminals of a OPTIM HYB unit consist of the input terminals of the quad-
rupole isolating switch, which comes standard with the capacitor bank.
For more detailed information, see section “7.- OPTIM HYP type diagram”.
14
OPTIM HYB Series
Instruction Manual