Русский
NTC-10.11 “Industrial power supply systems with relay protection and automation units”
Br0.00
The training laboratory stand is dedicated for using it as a training equipment at secondary specialized colleges and higher education establishments to perform laboratory works for studying the relay protection and automation at power supply systems.
Structurally, each of the modules consists of a housing with installed: electrical equipment, microprocessor measuring system, front panel.
Module 1 is intended for using it as training equipment during laboratory and practical classes for studying relay protection devices and automation of power supply systems.
Module 1 housing are placed:
- power transformer ОSМ-0,1;
- stopwatch board with a measurement accuracy of 0.01s for measuring the response time of devices of relay protection circuits;
- block of load resistors;
- module of microprocessor measuring system providing multi-channel measurements with output of measured current and voltage values to digital indicators.
The front panel of module 1 is conditionally divided into two parts: circuit and hardware.
The circuit part of the front panel shows the electrical circuits of the objects under study. All circuits drawn on the panel are divided into groups according to the subject of the work being done. At the panel are installed switching jacks, switching equipment, as well as controls, allowing to change the parameters of the elements under study during laboratory work.
The hardware part of the stand front panel accommodates relay protection units and automatic equipment, network automatic switch, digital indicators of microprocessor system of measurement.
Module 2 is intended for using it as educational equipment during laboratory and practical classes to study the quality of electrical energy at power supply systems.
Module 2 housing contains:
- power transformer ОSМ-0,1;
- a block of chokes;
- module of microprocessor measuring system providing multi-channel measurements.
The schematic part of Module 2 shows the general electrical circuits of the electrical distribution network with the possibility of using single-sided or two-sided power supply.
The set of measured parameters is sufficient for an effective studying relay protection and automation circuits in power supply systems without connecting the stand to a computer.
The stand is accompanied with:
- set of methodical and technical documentation for teaching stuff;
- software.
Experiments provided
For Module 1:
- Instantaneous current cutoff of a power line.
- Definite time overcurrent protection of power lines.
- Overcurrent protection of power line with limited independent time delay.
- Studying the circuit of overcurrent protection for voltage-controlled power line.
- Overcurrent protection of radial power line with single-side supply.
- longitudinal differential protection of power line.
- Поперечная дифференциальная защита линии электропередачи.
- Transformer differential protection.
- Overcurrent protection of power line with automatic circuit breaker.
- Protection of the electrical circuit against overload with the thermal release of the circuit breaker
- Automatic transfer switch of power supply connection.
- Auto-reclosing of power line.
- Auto-reclosing of transformer.
- Measuring the alternating current and voltage with direct connection of an electrical load to the power circuit
- Single-phase AC Apparent Power Measurement with Directly Connected Voltmeter and Ammeter.
- Measurement of active, reactive power, power factor with directly connected wattmeter, voltmeter and ammeter.
- Measurement of active energy of three-phase alternating current using an electric meter.
- Measuring the reactive energy of three-phase alternating current using an electric meter.
For Module 2:
- Determining the static power characteristic of the active load.
- Determining the static power characteristic of the inductive load.
- Determining the static power characteristic of capacitance load.
- Realistic modelling of the steady-state mode of single-phase transformer.
- Realistic modelling of the steady-state mode of power system phase.
- Realistic modelling of the steady-state mode of electric power system with single power supply.
- Realistic modelling of the steady-state mode of electric power system with double side power supply.
- Counterload voltage control.
- Reducing electricity losses in radial distribution networks due to longitudinal capacitive compensation.
- Reducing electricity losses in radial distribution networks due to transverse capacitive compensation.
- Studying the Power Line length influence on the electricity losses in distribution networks.
- Studying the transmission-line voltage influence to the electricity losses in distribution networks.
- Studying the load conditions influence of power line to electricity losses in distribution networks.
- Investigation of the power transmission mode in radial distribution networks.
Technical specifications
| Power supply | |
| Module 1 | ~3 380 V, 50 Hz |
| Module 2 | ~220 V, 50 Hz |
| Consumed power, kW, not more than | 0,7 |
| Module 1, kW, not more than | 0,4 |
| Module 2, kW, not more than | 0,3 |
| Overall dimensions each of module, not more than | |
| width, mm | 1310 |
| height, mm | 1440 |
| depth, mm | 600 |
| Weight of each module, kg, not more than | 60 |
Scope of delivery
- training laboratory stand – 1 pc.;
- set of jumpers – 2 sets.;
- USB-cable – 1 pc.;
- passport– 1 pc.;
- accompanying materials in electronic format – 1 pc.