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Please I need the catalog and user manual for Trihal Transformers
You can download the catalog from the link below on Schneider Electric website. https://www.schneider-electric.com/en/product-range-download/977-trihal#tabs-top...
The varplus logic controller is displaying message "U ALARM".what is the reason?
The cause may be that the Voltage is outside tolerance. The action to be taken: Check measurement voltage Check nominal voltage (Setup/Un) and adjusted...
Varplus logic display is OFF.What action to be taken?
The cause may be that the Measuring voltage is missing. Please check the correct connection of power supply and correct if necessary.
The Varplus logic Displays "I Lo ALARM".What action to be taken?
The cause may be due to that  the measured current is to small (< 15 mA) The action to be take: Check connection of CT CT ratio is too high compared...
The power factor is displayed incorrectly on the Varplus logic controller. What action to be taken?
The cause may be that: The connection detection was not performed The phase angle was adjusted manually false Offset reactive power is adjusted The...
In Varplus Logic relay,the power factor does not change after the switching of a step and Steps are switched off again.What action to be taken?
The cause may be due to that the CT is incorrectly positioned or due Capacitor defect. The action to be taken: Check installation position of the...
The Varplus Logic displays "I Hi ALARM",what action to be taken?
This alarm appears when upstream Current is higher than allowed. Please check the current transformer secondary current and possibly replace it with...
The varplus logic controller displays "HAr ALARM" or "OL ALARM".What action to be taken?
The cause may be due to too high THDU or possible resonnance. Thanks to Check THDU on installatio and verify the presence of  High frequency harmonics
The varplus logic displays "THi ALARM".What action to be taken?
This means that the temperature measured is too high. Please Check installation = Ambient temperature is too high or fans are failed
The varplus logic displays "SPL/Nr ALARM".What action to be taken?
This alarm indicates that the current step size is less than 75 % of the initial size. It is recommended to replace the capacitor.
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