The trigger plate is ingeniously designed as an integrated system for three-phase AC voltage and power regulation, though it's not suited for rectification purposes. Its phase-shifting voltage regulation adapts seamlessly to various load types, while the zero-crossing power regulation is specially tailored for constant resistance loads.
The phase-shifted voltage regulation method is a marvel of technology, adjusting output voltage by altering the conduction angle's size, providing a continuous, stable output without voltage spikes, and effectively limiting instantaneous current. This method is versatile, ideal for transformers, inductive coils, and variable resistance loads, though it does introduce harmonic pollution to the power grid.
Transition to zero adjustment type for refined control.
The zero-crossing adjustment type is a sophisticated method that operates at the sine wave's zero point, using a complete sine wave as a unit to adjust output power. This ensures an even distribution of on-sine waves, minimizing fluctuations in voltmeter and ammeter readings. Perfect for constant resistance loads, it prevents current concentration when multiple regulators are in play and maintains a high power factor without polluting the power grid. However, it's not suitable for inductive and variable resistance loads due to its inability to limit instantaneous current.
2. Settings for the Trigger Plate
P1 Potentiometer: Key Component
The P1 potentiometer serves as a preamplifier, skillfully converting 4-20mADC into 0-5VDC. It comes factory-set, ensuring optimal performance without the need for adjustments.
P2 Potentiometer: Overcurrent Guardian
The P2 potentiometer is your safeguard against overcurrent, set to trigger an alarm when the CT voltage surpasses 4.4VDC. Its factory settings are robust, needing no adjustments under standard conditions.
P3 Potentiometer: Current Limiter
The P3 potentiometer is a vital current-limiting tool, preset to automatically reduce output voltage when CT voltage exceeds 4VDC, then stabilize below this threshold. Users can fine-tune it according to specific field requirements.
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