VS65
POWER ELECTRONICS
12
INTRODUCTION
CONTROL
MODES
Up to 5 control modes:
0: Keyboard
1: Remote control
2: Keyboard + Remote control
3: PC
4: Keyboard + PC
5: Remote control + PC
Over voltage (trip or alarm programmable)
Low voltage (trip or alarm programmable)
Zero sequence over voltage protection (trip or alarm programmable)
Zero sequence over current protection (trip or alarm programmable)
Rotor locked
Motor overloaded
Motor over-temperature (optional)
Phase current imbalance protection Trip value: 5% to 30% Phase imbalance
Effective run-time: 1 to 20 seconds
Over-current protection Trip value: 100% to 500% FLA at steady status
Effective run-time: 1 to 60 seconds
MOTOR
PROTECTIONS
Under load
Trip value: 10 to 90% FLA
Effective run-time: 1 to 60 seconds
SCR over temperature
Softstarter over temperature
Starting time too long (max. 120sec)
Input phase loss
SOFTSTARTER
PROTECTIONS
Maximum allowed cycles of starting (no more than 6 times per hour, the cycle is not less than 10min)
Start voltage 30% to 80% of rated voltage
Start voltage duration 1 to 100s
Acceleration time 1 to 100s
Current limit 150% to 500% of rated current
Deceleration time 1 to 60sec / Free stop
SOFTSTARTER
SETTINGS
Fault reset mode Manual
Average phase current
Input voltage
Motor frequency
DISPLAYED
INFORMATION
Fault history (5 latest faults including the causes, time, relevant data, current phase, earth fault…)
1.3. Design Features
The VS65 medium-and high-voltage (3300~15000V) soft starter consists of two cabinets: one is the
power cabinet with main vacuum circuit-breaker, and the other is the softstarter cabinet. Both parts
are described below:
Main Vacuum circuit-breaker
The main vacuum circuit-breaker on the power cabinet allows that the motor can be started
or stopped with the load. The switch should be with the protection for the short circuit.
Regarding the designed maximum value, the 5kV main vacuum circuit-breaker is used for the
2300~4160V soft starter, the 7.2kV one is used for the 6000~7200V soft starter, and the
15kV one is used for the 10~14kV soft starters.
Soft starter
The soft starter part consist of the bypass vacuum contactor, controlled silicon component,
RC absorber circuit, trigger circuit, and the controlling part, etc.
o Bypass vacuum contactor:
After the soft starter fishing the motor starting, the contactor will be closed and allow the
motor current to supply through the bypass contactor. Regarding the used voltage ratio,
the 5kV is used for 2300V and 4160V, the 7.2kV is used for 6000V and 7200V, and the
15kV is used for 10kV and 15kV soft starters.
To Next Page
Loading...
Need help?
General
