Others

Intronics also offers other devices:

  • Electronic Magnetic Contactor: Silent and energy-efficient, these devices replace electromechanical contactors to provide more reliable and smoother operation.
  • Time-Delay Device: An electrically controlled device featuring output contacts that activate instantly upon power-up. To protect the load from frequent restarts, a time-delay cycle is triggered whenever input power is disconnected. The device prevents the load from re-energizing until the preset delay period has elapsed.
  • Phase Protection Relay: Safety devices for three-phase systems that protect against phase loss, reversal, and imbalance.

  • Lead-Lag Controller: A system designed to manage and alternate the runtime of multiple parallel devices (e.g., pumps, fans, or compressors) to distribute wear and optimize longevity.

Electronic Magnetic Contactor

is designed to safely and reliably switch high-current or high-voltage loads, such as electric motors, heating equipment, and large-scale lighting systems. It works on the principle of electromagnetism.

  • A relatively low-power control voltage is applied to an electromagnetic coil.
  • When the coil is energized, it creates a magnetic field that pulls an armature, causing the main contacts to close.
  • This closure allows the high operating current to flow to the load.
  • When the coil is de-energized, the contact is opened, interrupting the power flow.

Phase Protection Relay

is designed to guard equipment against several common three-phase faults:

  • Phase Loss (Phase Failure): This occurs when one or more of the three phases loses power. Running a three-phase motor on only two phases can cause severe overheating and damage due to an unbalanced magnetic field and increased current draw on the remaining phases.
  • Phase Reversal (Incorrect Phase Sequence): This happens when the order in which the three phases arrive is swapped. This is critical for motors, as an incorrect sequence will cause the motor to spin in the reverse direction, which can be damaging or dangerous for connected machinery (like pumps or compressors).
  • Phase Imbalance (Asymmetry): This is when the voltages or currents between the three phases are not equal (deviate beyond a set tolerance). Significant unbalance can cause motors to run hot, vibrate, and experience reduced efficiency and lifespan.
  • Over-voltage and Under-voltage: The device protects against the system voltage being too high or too low for a sustained period, both of which can lead to equipment failure.

Time-Delay Device

is a specialized control device that introduces a pre-set, adjustable time interval between the application of a trigger signal and the resulting change in the state of its output contact. Output contact activates instantly when powered on. To protect the load from frequent restarts, a time-delay feature is activated whenever the input power is turned off.

Lead-Lag Controller

is a tool used to alternate the operation of multiple devices within a system to equalize their running hours, which in turn reduces wear and tear and extends their service life.

Furthermore, if one device fails and the resulting outcome does not meet the target (e.g., the setpoint), the system will automatically command the other device to assist in the operation.

For example, in a computer room where the temperature must be maintained: if Air Conditioner Unit 1 fails, causing the temperature to rise above the setpoint, the system will command Air Conditioner Unit 2 to run and simultaneously send an alarm signal.