Code: NJU-17-0292
COMPLETE TRAINING SYSTEM FOR ELECTRICAL PROTECTION OF POWER SYSTEMS.
with installation and training
Complete system for training in electrical power protection, required minimally the following experiments
-Current and voltage transformers used in protection systems
-Protective Relays
-Experiments with the 3 ~ Reverse Power Relay
-Experiments with the 3 ~ Time Over/under voltage Relay
-Experiments with the 3 ~ Time Overcurrent Relay
-Experiments with the Transformer Differential Protective Relay
-Short-circuit protection with overcurrent relay
-Earth-fault monitoring with the Directional Earth Fault Relay
-Protection of a power transmission line
-Protection of parallel power transmission lines (Short-circuit protection for two lines connected in series)
-Protection of parallel power transmission lines (Short-circuit protection for two lines connected in parallel)
Each system must be composed minimally by the following components:
 Single-phase current transformer
Transformer, primary 5/1 A, secondary 1 A, 15 VA,
 Load for Current Transformer
Fixed resistor: 0.56 Ohm, 6.5 A
Rheostat: 0...56 Ohm, 1 A
Scale: 0...100 %
 Three-Phase Current Transformer
3 single-phase transformers, primary 5/1 A,
secondary 1 A, 15 VA,
 Single-Phase Voltage Transformer
 Transformer, primary 380/Ö3 V (380 V),
secondary 100/Ö3 V 15 VA (100 V) and
100/3 V 5 VA (100/Ö3 V)
Load for Voltage Transformer
Variable load for single-phase voltage transformer for determining the accuracy class.
Fixed resistor: 220 Ohm, 0.5 A
Rheostat: 400...1900 Ohm, 0.25 A
Scale: 0...100 %
 Three-Phase Voltage Transformer
3 single-phase transformers,
Primary 380 V
secondary 100/V 15 VA
 Summation Current Transformer
Primary: 5 x 2.5 A
Secondary: 1 A
Power: 10 VA
 Three-Phase Transformer TL380KV
Rated power: 800 VA
Primary: 3 x 400 V winding with tapping at 230 V
Secondary: 3 x 380 V winding with tapings at + 5 %, - 5 %, - 10 %, - 15 %
3~ Reverse power relay
With RS485-interface.
3~ Time Over/undervoltage relay
-With RS485 interface.
- Nominal voltage Vn: 100,110, 230, 400 V AC (Line-to-line)
- Nominal frequency fN: 35 – 66 Hz
- Auxiliary voltage VV: 36-520 V AC (f = 35-78 Hz) or 50-750 V DC/4 W
3~ Time overcurrent relay
With RS485 interface.
Transformer Differential Protective Relay
- Rated current: 1 A
- Rated frequency: 50...60 Hz
- Auxiliary voltage: 36...275 V AC or
19...390 V DC
- Output contact: 1 x CO
3~ Directional time overcurrent relay
with RS485 interface.
Digital Distance Protection Relay
Rated frequency: 50/60 Hz
Rated current: 1 A
Auxiliary voltage: 24 VDC
3~ Directional Earth Fault Relay
With RS485 interface.
Transmission Line Model 380 kV
Quad bundle 240/40, with surge
impedance 240 Ohm and
natural power 600 MW,
 Software for control at distance
 Power Circuit Breaker Module
 Earth Fault Compensation
earth fault compensation for the 380 kV transmission line
Inductance L: 0.005...2 H
Rated voltage: 220 V, 50 Hz
Rated current: 0.5 A
 Three-Phase Supply Unit with FCCB
 Adjustable transformer 0...260 V, 4 A
 Resistive Load 1.0
- Resistance: 3 x 1000 Ohm
- Series resistance: 3 x 22 Ohm
- Current: 3 x 2.5 A
 Data Acquisition system with software
Moving Iron ammeter. 2.5 A
- Measurement ranges: 0 - 2.5 A
Moving Iron voltage Meter 600 V
Measurement ranges: 0 - 600 V
RMS Meter
Multifunctional measuring instrument
USB/RS 485 interface convert
Electronic time clock P
-with quasi-analogue 0.01 second display
Range: 0.01 s to 999 s
Acoustic Continuity Tester
Standard continuity tester for practically all electrical function tests.
- Acoustic continuity tester up to 300 kOhm and above
- Voltage proof up to 500 V AC/DC
- Test current: 10 µA
- Warning lamp for voltages as of 60 V
- Capacitor test: 0.01...47 µF
Software protection relay
Software for reading out and logging measurement data and to set relays parameters.
Suitable for the devices:
- 3~ Time Over/undervoltage relay
- 3~ Reverse power relay
- 3~ Time overcurrent relay (I)DMT
- 3~ Directional time overcurrent relay
- 3~ Directional Earth Fault Relay
SCADA for protective relays
 RS485 adapter with LabView
The following relays:
- 3~ Time Over/undervoltage relay
- 3~ Reverse power relay
- 3~ Time overcurrent relay (I)DMT
- 3~ Directional time overcurrent relay
- 3~ Directional Earth Fault Relay
Set of Safety Bridging Plugs with Tap, Safety bridging plugs and
Safety connecting leads, 32 A ,all color and length
Mobile cable holder
Monitor support for experiment stand
Mobile Experiment Stand
Equipment board for experiment stand
experimental manuals for Protective Relays
Current & Voltage Transformers
Protection of Power Lines
Software to manage experimental manuals and user interface for convenient viewing.