Русский
NTC-10.66.1 “Systems of relay protection and automatic equipment”
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 automatic equipment.
Structurally, each of the modules consists of a housing in which are placed:
- electrical equipment;
- microprocessor measuring system;
- front panel.
The hosing of general module contains:
- power transformer ОSМ-0,1;
- stopwatch card with a measurement accuracy of 0.01s for measuring the response time of devices of relay protection circuits;
- load resistor unit;
- module of microprocessor measuring system providing multi-channel measurements with output of measured values of current and voltage to digital indicators.
The housing of the additional module of relay studying are placed:
- power transformer ОСМ-0,1;
- stopwatch card with a measurement accuracy of 0.01s for measuring the response time of devices of relay protection circuits;
- 3-phase selsyn transformer power supply;
- module of microprocessor measuring system providing multi-channel measurements and functioning of models of relays under study.
The front panels of the modules are conditionally divided into two parts: circuit and hardware.
On the circuit part of the front panel are shown electrical circuits of the objects of study. All circuits at the panel are divided into groups according to the subject of the work being carried out. The panel has switching jacks, switching equipment, as well as controls that providing opportunity to change the parameters of the elements under study during laboratory work.
At the hardware part of the front panel are installed studied units of relay protection and automatic equipment, system automatic circuit breaker, digital indicator displays of microprocessor measuring system.
A number of parameters under measuring is really enough for successful studying the circuits of relay protection and automatic equipment at electric power supply system without connection the stand to computer.
The stand is accompanied with a set of teaching materials and technical documentation intended for the teaching staff.
Experiments provided
For Module 1:
- Instantaneous current cutoff of power lines.
- Max. overcurrent protection of power lines with independent time delay.
- Max. overcurrent protection of power lines with limited independent time delay.
- Studying the circuit of maximal overcurrent protection of voltage-controlled power lines.
- Overcurrent protection of radial system with single power supply.
- Longitudinal differential protection of power lines.
- Transverse differential protection of power line.
- Transformer differential protection.
- Overcurrent protection of the electrical circuit using a circuit breaker.
- Electrical circuit protection against overload with thermal release of the circuit breaker.
- Automatic transfer switch of power supply connection.
- Auto-reclosing of power line.
- Auto-reclosing of transformer.
- Directional overcurrent protection of power line.
- Remote protection of power line.
- Current protection of transformer.
For Module 2:
- Current relay testing.
- Voltage relay studying.
- Time delay relay testing.
- Studying the current relay with limited dependent time delay.
- Power directional relay
- Studying the differential current relay.
- Studying the resistance relay.
Technical specifications
| Power | 3~50Hz, 380V |
| Consumed power, kW, not more than | 0,8 |
| General module, kW, not more than | 0,4 |
| Additional module, kW, not more than | 0,4 |
| General module overall dimensions, not more than | |
| width, mm | 1310 |
| height, mm | 1440 |
| depth, mm | 600 |
| Additional module overall dimensions, not more than | |
| width, mm | 1010 |
| height, mm | 1440 |
| depth, mm | 600 |
| Weight of general module, kg, not more than | 50 |
| Weight of additional module, kg, not more than | 35 |
Scope of delivery
- training laboratory stand – 1 pc.;
- set of jumpers – 2 sets.;
- passport – 1 pc.;
- supplementary materials in electronic format – 1 pc.