What is the most commonly used starting method for motors in 4” conventional pumps?
By how much does the supply voltage decrease before the motor contactor stops the pump?
Which protection features does the SQE have?
What happens if the water level in the well drops below the inlet?
What happens if the static water level is too low?
Why must the pump unit be installed below the dynamic water table?
Test results
Q: What is the most commonly used starting method for motors in 4” conventional pumps?
A: Direct on line
Q: What is the most commonly used starting method for motors in 4” conventional pumps?
A: Star delta starters
Q: What is the most commonly used starting method for motors in 4” conventional pumps?
A: Auto transformer
Q: By how much does the supply voltage decrease before the motor contactor stops the pump?
A: More than 10 %
Q: By how much does the supply voltage decrease before the motor contactor stops the pump?
A: More than 15 %
Q: By how much does the supply voltage decrease before the motor contactor stops the pump?
A: More than 20 %
Q: Which protection features does the SQE have?
A: Voltage handling, soft start, dry-running protection and overload protection.
Q: Which protection features does the SQE have?
A: Protection against the well running dry.
Q: Which protection features does the SQE have?
A: The SQE does not have any protection features.
Q: What happens if the water level in the well drops below the inlet?
A: The motor power consumption drops
Q: What happens if the water level in the well drops below the inlet?
A: The motor power consumption stays the same
Q: What happens if the water level in the well drops below the inlet?
A: The motor power consumption increases
Q: What happens if the static water level is too low?
A: The pump overheats
Q: What happens if the static water level is too low?
A: The water level is brought down below the inlet of the pump
Q: What happens if the static water level is too low?
A: The motor shuts down
Q: Why must the pump unit be installed below the dynamic water table?
A: So you are sure to minimise your power bill.
Q: Why must the pump unit be installed below the dynamic water table?
A: To avoid the risk of dry-running during operation.
Q: Why must the pump unit be installed below the dynamic water table?
A: To maintain a stable pressure in the system.