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.