AL-E319 OVER CURRENT RELAY TRAINER (STATIC)

Description

AL-E319 OVER CURRENT RELAY TRAINER (STATIC)

AL-E319  OVER CURRENT RELAY TRAINER (STATIC)

1. Product Overview

The AL-E319 Over Current Relay Trainer (Static) is a compact laboratory training system designed for the practical study of a static over-current relay protection system. The trainer incorporates an over-current relay, measurement instruments, a controllable single-phase lamp load, tripping indication and protective circuitry in a modular rack-type enclosure.

2. Scope of Learning

The trainer is designed for:

• Study of Static Over Current Relay Protection System.
• Demonstration of over-current/overload protection.
• Study of relay tripping operation using a controllable lamp load.
• Observation of voltage and current during the protection experiment.
• Study of trip indication and protection response.

3. Technical Specifications

A. Power Supply

B. Digital / Analog Metering

The trainer shall incorporate electrical measurement facilities for monitoring the experimental circuit.

Voltmeter

• Provided for voltage measurement.
• Panel-mounted for convenient observation.

Ammeter

• Provided for current measurement.
• Panel-mounted for monitoring load/protection current.

The supplied specification does not state the exact voltage/current measurement ranges.

4. Over-Current Relay Module

A dedicated Over Current Relay shall be mounted on the trainer panel.

Function

• Designed for overload protection.
• Detects the over-current condition in the experimental circuit.
• Provides tripping operation when the protection condition is reached.
• Interfaces with the load and tripping indication circuit.

The supplied specification does not state the relay's exact pickup-current range, time-current characteristic, accuracy, auxiliary supply rating or adjustment range.

5. Single-Phase Lamp Load

A controllable single-phase resistive lamp load shall be provided.

Specification

• 6 bulbs mounted on the trainer.
• Individual switch controls provided for the bulbs.
• Load can be varied by switching individual lamps into or out of the circuit.
• Provides a practical load for demonstrating over-current/overload protection.

6. Tripping & Indication System

The trainer shall include a dedicated tripping indication arrangement.

Features

• Relay-operated tripping.
• Visual indication of trip/protection operation.
• Suitable for observing the response of the static over-current protection system.

The supplied specification does not specify the exact lamp type, rating or number of indication lamps.

7. Protection & Safety

The trainer shall incorporate:

• MCB-based short-circuit protection.
• High-voltage test points.
• 4 mm safety sockets for test points.
• Properly enclosed electrical components.
• Clearly accessible experimental connections.
• Modular construction suitable for laboratory use.

8. Mechanical Construction

The trainer shall be housed in a:

• Modular-based rack-type aluminium extruded metal cabinet.
• Robust metal enclosure.
• Laboratory-grade construction.
• Front-panel-mounted components and controls.
• Clearly arranged controls and measurement points.

Approximate Dimensions

16" × 24"

9. Interconnection Accessories

The following shall be supplied:

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

10. Salient Features

• Static over-current relay protection trainer.
• Practical demonstration of overload protection.
• Integrated over-current relay.
• Six-bulb single-phase controllable load.
• Voltmeter and ammeter.
• Tripping indication.
• MCB short-circuit protection.
• High-voltage safety test points.
• 4 mm safety sockets.
• Heavy-duty 4 mm patch cords.
• Modular aluminium extruded rack-type construction.
• Compact laboratory design.
• Instruction manual supplied.
• Approximate size: 16" × 24".

11. Scope of Supply

Optional Accessories

No optional accessories.

Note: The above specification has been organized directly from the supplied AL-E319 source text. Exact meter ranges, relay pickup settings, relay timing characteristics, bulb ratings and electrical dimensions were not specified in the source and therefore have not been added or assumed.

Technical Details