Electrical Protection Relay Trainer

Product Overview

This Electrical Protection Trainer has been created for learning the dangers caused by touching electrical or electrical conductor equipment, simulation of protection of overcurrent, earth fault and earth leakage by using fault resistor. It is designed as a modular panel system with a 2 level mounting experiment frame. There are clear symbols on each panel by silk screen. All connecting points are via 4mm safety connectors for safety in operation.

A typical electrical protection relay syllabus covers the fundamentals of protective systems, various types of relays, and their applications in power systems. It includes topics like circuit breakers, fault analysis, protection schemes for different power system components (generators, transformers, transmission lines, etc.), and the principles of relay operation. The syllabus also explores aspects like over current protection, neutral grounding, and the use of digital and microprocessor-based relays.

Technical Specifications

THREE PHASE POWER SUPPLY

• The unit is contained in a metal housing with clear front panel identification and 4mm safety sockets that make its easy and safe.
• Power Input: 3 Phase 240V/415V, 50Hz via input 5 core cable with 5 pin AC Plug, 32A
• 5 Pin AC Socket 16A
• Indicator: 3 pilot lamp for power line in three color coded (Red, Yellow & Blue)
• Fuse Protection: Three Phase Output
• Connection: 3P+N+PE
• Emergency Push Button Switch
• Keylock Switch
• START Push Button Switch
• STOP Push Button Switch
• Protection: Earth leakage circuit breaker and miniature circuit breaker
• Fixed Three Phase AC Power supply: 3 x 415V AC; 32A AC (Line To Line)
• Fixed Single Phase AC Power supply: 3 x 240V AC; 32A AC (Line To Neutral)

COMBINED OVERCURRENT & EARTH FAULT RELAY

• Combined Overcurrent & Earth Fault relay for training purpose c/w wiring, 4mm Safety sockets (32A rated for current injection and 10A for contact)

Specifications:

• AC Supply Input: 240VAC, 50Hz
• Complete with Current Transformers
• Contact Output: Included
• 4mm Safety sockets are mounted on the front panel
• Built-in self test and soft recovery watchdog
• Three-phase, three-stage setting for phase overcurrent
• Two-stage setting for earth fault
• 5 selectable IDMT and definite times
• Thermal overload protection
• Cold load pickup protection
• Circuit breaker failure protection
• Selectable fundamental or true RMS measurement
• Selectable 50 or 60 Hz frequency
• 2 Programmable LEDs linked to alarm
• Programmable contact outputs
• Non-volatile fault values recording up to 3 records
• Complies with IEC 60255 standard
• ANSI code: 50G, 50P, 50N, 51G, 51P, 51N, CLP, 50BF, 49RMS
• Terminals: 4mm Safety Socket
• Unit Type: Panel H2

EARTH FAULT RELAY

• Earth Fault relay for training purposes c/w wiring, 4mm Safety sockets (32A rated for current injection and 10A for contact)

Specifications:

• AC Supply Input: 240Vac
• Contact Output: Included
• 4mm Safety Sockets are mounted on the front panel
• Two stages setting for earth fault
• IDMT and definite time
• Circuit breaker failure protection
• Selectable fundamental or true RMS
• Selectable 50 or 60 Hz frequency
• Programmable output contacts
• Complies with IEC 60255 standard
• ANSI code: 50G, 50N, 51G, 51N, 50BF
• Terminals: 4mm Safety Socket
• Unit Type: Panel H2

EARTH LEAKAGE RELAY

• Earth Leakage relay for training purposes c/w wiring, 4mm Safety sockets (32A rated for current injection and 10A for contact)

Specifications:

• AC Supply Input: 240Vac
• Contact Output: Included
• 4mm Safety Sockets are mounted on the front panel
• Selectable 50 or 60 Hz frequency
• Selectable fundamental or true RMS measurement
• Detection of no connection to ZCT
• Protected against nuisance tripping
• Incorporated fail-safe feature into trip contact
• Terminals: 4mm Safety Socket
• Unit Type: Panel H2

POWER CIRCUITS BREAKER

• Molded Case Circuit Breaker Module
• Complete with Shunt Trip Coil
• Contact load capacity: 415VAC, 32A
• Terminals: 4mm Safety Socket
• Unit Type: Panel H1

RESISTIVE LOAD UNIT

• Compose of three resistances with possibility to connect in star/delta or parallel, controlled by three switches with 7 steps variable per phase
• Power: 3 x 100W
• Voltage: 415/240V (Star/Delta)
• Protection: Fuse
• Terminals: 4mm Safety Socket
• Unit Type: Bench Top B1

FAULT RESISTOR

• Modular design
• Fault Rheostat (1.5k , 1.5kW) (Adjustable 500 500W in series connection)
• Current: 5A
• Rated Power: 1500W
• Protection: Fuse
• Terminals: 4mm Safety sockets
• Unit Type: Panel H2

INDUCTIVE LOAD UNIT

• Compose of three inductances with possibility to connect in star/delta or parallel, controlled by three switches with 7 steps variable per phase
• Power: 3 x 100VAR
• Voltage: 415/240V (Star/Delta)
• Protection: Fuse
• Terminals: 4mm Safety Socket
• Unit Type: Bench Top B1

DIGITAL AC AMMETER

• Measurement range: AC 0 ~ 5A
• Display: 3 digits 14.2 mm LED
• Accuracy: 0.3% 1 digit
• Resolution: 0.01A
• Input impedance: < 0.1
• Power source: 240VAC, 50/60 Hz
• Terminals: 4mm Safety Sockets
• Unit Type: Panel H1

DIGITAL CLAMP METER

• DIGITAL CLAMP METER Series 400A/600A Digital Clamp Meters
• Designed according to 300V, featuring overload protection, high reliability, high safety and high accuracy
• Measures high-voltage frequency, temperature, AC/DC current, etc.

THREE PHASE POWER QUALITY METER (2 UNITS)

• Display Type: HD LCD Display
• Real-Time Measurement:
• Phase voltage: V1, V2, V3, Vlnavg
• Line voltage: V12, V23, V31, Vllavg
• Current: I1, I2, I3, Iavg, In
• Active, Reactive, Apparent power and power factor
• Energy and Demand:
• Four quadrant active and reactive energy (Import, Export, Total, Net)
• Power Quality Analysis:
• Voltage and current unbalance
• THD, harmonic distortion, crest factor, K factor
• Communication:
• Ethernet RJ45, RS485, MODBUS RTU
• Settable Logging Interval: 1min to 60min
• Software Accessibility: 4 Tariffs (DataLog)
• Protection: Fuse
• Power Supply: AC240VAC, 50Hz
• Terminals: 4mm Safety Socket
• Unit Type: Panel H2

POWER MANAGEMENT SOFTWARE

• PC management software; web browse data
• True-RMS measuring parameters
• ANSI and IEC 0.2 accuracy class
• Power quality analysis
• 4 quadrant energy
• Data logging
• Measure harmonics from 2nd to 49th
• TOU, 4 Tariffs, 6 Seasons, 6 Schedules
• Communication:
• Ethernet RJ45, RS485, MODBUS RTU

CONNECTING SAFETY TEST LEAD SET

• The set consists of 2 type lead set and 2 type bridging plug set in 5 different coded colors
• Leads are capable of 15A current safety plugs
• Safety Terminal Socket (4mm): 25cm x 15 units; 50cm x 20 units; 100cm x 15 units
• 19mm Bridging Plug Set x 16 units
• 19mm Bridging Plug Set (Stackable) x 4 units

EXPERIMENTAL TABLE (OPTIONAL)

• Workbench Table Top
• Material: Compress Board
• Dimension:
• Thickness: 25mm
• Length: 1500mm
• Width: 800mm
• Height: 800mm
• Support Structure

Material:

• 2 x 2 Hollow Steel Epoxy Coated
• Thickness: 2mm
• Castor Wheels (Front With Lock)
• Lower Cabinet with 3 Storage Drawers with center Lock

EXPERIMENT PANEL FRAME (OPTIONAL)

• DIN Standard A4 with Two Shelves
• Side Frame: T Shape
• Horizontal U-Bar: Top and Bottom
• Horizontal H-Bar: Centre
• Material: 2mm Thickness Steel Epoxy Coated
• Dimension:
• Length: 1450mm
• Width: 20mm
• Height: 300mm
• Complete with Test Lead Set Holder
• Two Location: Left & Right
• 7 Slots for 4mm Stackable Safety Test Lead Sets