Areva HVX-E - Control and Operating Devices

The circuit breaker has been desi-
gned on principle so as to permit
manual operation.
The drive mechanisms of the indivi-
dual switching devices can be
equipped, depending on the specific
customer's model, with additional
electrical control and operating devi-
ces. These are defined in the circuit
breaker-specific wiring diagram ( see
separate documentation).
Component fitting options:
Motor
• for charging the energy-storing
device (spiral spring)
• HVX-E: electric actuation of the
withdrawable part
Closing release
• 1 ea.
Opening release
• 3 ea. max.
Secondary release
(Transformer-operated release)
• 1 ea. max.
Maximum equipment opening release
and secondary release: 3 units in to-
tal
Undervoltage release (optional)
• 1 ea.
Blocking coil
• Blocking coils prevent the circuit
breaker from being closed and
opened via the push-buttons
"ON" or "OFF", as well as manual
actuation of the withdrawable
part.
If the rated supply voltage has
fallen or is shut off, all blocking
coils are in "blocked" position.
Anti-pumping relay
If an ON and OFF command is si-
multaneously and permanently pre-
sent at the circuit-breaker, the latter
returns to its initial position after clo-
sing. It remains in this initial position
until the ON command is issued
anew. This prevents continuous clo-
sing and opening ("pumping").
Power consumption, solenoids and motor
Solenoids/motor Power consumption [W]
Closing release < 250
Opening release < 250
Undervoltage release 15
Secondary release 12
Motor for energy-storage device
for withdrawable part
150
< 200
Information about the power consumption of solenoids and the motor is available from
the manufacturer. The supply voltage data is required to this effect.
Operating times for solenoids and motor
Minimum command time "OFF" el. tripping [ms] 20
Minimum command time "ON" el. tripping [ms] 20
Motor charging time [s] 4 – 12
9
3.3 Control and operating devices
Overview of rated supply voltages
Direct voltage DC [V] 24 48 60 110 125 220
Alternating voltage AC [V] (110) / 120 (220) / 230