AL-E319C OVER CURRENT RELAY TRAINER (ELECTROMECHANICAL TYPE)

Description

AL-E319C OVER CURRENT RELAY TRAINER (ELECTROMECHANICAL TYPE)

AL-E319C OVER CURRENT RELAY TRAINER (ELECTROMECHANICAL TYPE)

1. Product Overview

The AL-E319C Over Current Relay Trainer (Electromechanical Type) is a laboratory training system designed for the practical study of over-current relay protection systems. The trainer incorporates a single-phase AC supply section, digital AC measurement, an electromechanical over-current relay circuit, timer controls, trip/alarm indication and controllable load-current facilities.

2. Scope of Learning

The trainer is designed for:

• Study of Over Current Relay Protection System.
• Demonstration of relay operation under over-current conditions.
• Study of tripping and reset operation.
• Observation of load current and voltage during protection experiments.
• Study of alarm and trip indication.

3. Technical Specifications

A. Power Supply

B. Single-Phase Power Supply Module

The trainer shall incorporate a dedicated Single-Phase Power Supply Module (230 V, 50 Hz).

Features

• MCB protection.
• Emergency-stop facility.
• Red power indicator.
• Clearly identified supply terminals.
• Suitable protection for laboratory operation.

4. Digital AC Meter Module

A dedicated digital measurement module shall be provided.

Digital AC Voltmeter

• Digital AC voltage measurement.
• Panel-mounted display.
• Suitable input terminals for experimental measurement.

Digital AC Ammeter

• Digital AC current measurement.
• Panel-mounted display.
• Suitable for monitoring load current.

Note: The supplied specification does not state the exact measurement ranges or accuracy of the digital meters.

5. Over-Current Relay Module

The main protection section shall contain the circuit required for studying an over-current relay protection system.

Integrated Features

• Circuit for over-current relay.
• Trip indicators.
• Timer reset switch.
• Buzzer indicator for alarm.
• Push ON/OFF control for load current.
• Control switches for timer and load current.
• 4 A autotransformer for voltage control.

The arrangement shall allow the user to apply and control the experimental load current and observe relay operation, trip indication and alarm response.

6. Relay Control & Indication

The trainer shall provide the following control and indication facilities:

7. Safety & Protection Features

The trainer shall incorporate:

• MCB-based short-circuit protection.
• Emergency-stop facility.
• High-voltage test points.
• 4 mm safety sockets.
• Insulated front-panel construction.
• Clearly printed circuits and symbols.
• Modular enclosed construction.
• Accessible and clearly identified connection points.

8. Mechanical Construction

The trainer shall be housed in a:

• Modular rack-type aluminium extruded metal cabinet.
• Robust laboratory-grade enclosure.
• Front-panel-mounted electrical components.
• Clearly printed circuit diagrams and symbols.
• Suitable construction for repeated educational laboratory use.

Approximate Size

42" × 16"

9. Front Panel

The front panel shall accommodate:

• Single-phase power supply section.
• MCB.
• Emergency-stop.
• Red supply indicator.
• Digital AC voltmeter.
• Digital AC ammeter.
• Electromechanical over-current relay section.
• Trip indicators.
• Timer controls.
• Timer reset.
• Alarm buzzer.
• Load-current ON/OFF control.
• 4 A autotransformer voltage-control section.
• Safety test points and patch-cord connections.

10. Interconnection Accessories

The trainer shall be supplied with:

• 4 mm heavy-duty patch cords.
• Patch-cord length: 1 metre.
• 4 mm safety sockets for high-voltage test points.

11. Salient Features

• Electromechanical over-current relay trainer.
• Practical study of over-current protection.
• 0–230 V, 2 A AC supply.
• Single-phase 230 V, 50 Hz supply module.
• MCB protection.
• Emergency-stop facility.
• Red power indication.
• Digital AC voltmeter.
• Digital AC ammeter.
• Over-current relay circuit.
• Trip indication.
• Timer reset facility.
• Buzzer alarm indication.
• Load-current ON/OFF control.
• Timer and load-current control switches.
• 4 A autotransformer for voltage control.
• High-voltage test points with 4 mm safety sockets.
• Heavy-duty 4 mm patch cords.
• Modular aluminium extruded rack-type cabinet.
• Approximate dimensions: 42" × 16".
• Instruction manual supplied.

12. Packing List

13. Optional Accessories

No optional accessorie0073.

Tender-Ready Summary

AL-E319C shall be a complete electromechanical over-current relay protection training system with a 0–230 V, 2 A AC supply, 230 V/50 Hz single-phase power module, MCB and emergency stop, digital AC voltmeter and ammeter, over-current relay circuit, trip indicators, timer reset, buzzer alarm, load-current control, timer controls and 4 A autotransformer voltage control. The complete trainer shall be housed in a modular aluminium extruded metal rack cabinet of approximately 42" × 16", with 4 mm safety sockets, heavy-duty patch cords and instruction manual.

Technical Details