Relay Control Station

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INCLUDED MODULES
ALI01. Industrial Main Power Supply

• Magneto-thermal protection.
• Differential protection.
• Double plug and terminals (threephase+ single- phase).
• 2 lamps.
• 8 terminals.
• Mushroom security button.
• Removable key.

REL23/A. Earth Leakage Relay

• Earth leakage relay (adjustable).
• A delay can be introduced to the working of the relay.
• Test button.
• Reset button.
• Two contactors that commute when the relay is activated and a light.
• 10 terminals.

REL23/B. Over Current Relay

• Over current relay with adjustable hystererisselectable latching facility delay from fault adjustable and start up delay adjustable.
• The switch with the word LATCH is used to commute between the two working modes of the relay: NON-LATCHING MODE and LATCHING MODE.
• It also has a contactor that commutes when the relay is activated.
• 9 terminals

CON01. 3-pole Contactor (24 Vac)

• 3-pole contactor, 9 A.
• Control coil 24 Vac.
• Auxiliary contacts 3NO + 2NC.
• 18 terminals.

TRA03. Single-phase Voltage Transformer 220 Vac / 24 Vac

• Single-phase transformer.
• It has two input terminals in the primary (220V) and two output terminals in the secondary (24V).
• 4 terminals.

TRA10. Current Transformer 25/5A

• Single-phase current transformer based on a toroid.
• Transformation ratio: 25/5 A.
• 2 terminal

CAR18/A. Rheostat for Equivalent Circuit of an Electric Line

• Rheostat of 500W that can vary up to 150 .
• 3 terminals.

CAR18/B. Inductance for Equivalent Circuit of an Electric Line

• Coil with several takes that provides inductance of 33, 78, 140, 193 y 236 mH.
• 6 terminals.

CAR18/C. Capacitor for Equivalent Circuit of an Electric Line

• 14 capacitors laid out in two groups of 7 and ready to be connected in parallel.
• Each group can provide from 0,1 F up to0,7 F.
• 16 terminals.

EXERCISES AND PRACTICAL POSSIBILITIES
1.- To connect the transformers to a line.
2.- To connect the protection relay.
3.- To simulate a line fault and the relay will trip the circuit breaker.
4.- Start up of a three-phase contactor.
5.- Calculation of the transformation ratio of a toroid.
6.- Calculation of the parameters of a line.
7.- Start up of an over current relay.
8.- Start up of an earth leakage relay.