Русский
NTC-10.10.2 “Relay protection and automation МR301”
Br0.00
The educational laboratory stand is designed for carrying out laboratory works in “Relay protective automation” in secondary educational institutions.
Constructively the stand consists of a body where some electrical equipment, a relay, a frontal panel and a tabletop of an integrated worktable are installed.
The following items are placed inside the body:
- step-down transformers;
- module of load resistors.
The electrical diagram of the laboratory stand is depicted on the frontal panel. A module of automatic circuit breakers, a power unit BPT-615, a microprocessor protective relay MR-301, instrumentation, indicators and controls are installed on the panel.
Readings are registered according to digital ammeters and the PLC-display of the microprocessor relay.
The stand allows conducting the following operations:
- study of the microprocessor protective relay MR-301 programming;
- study of the current changes in the line phases in nominal operating mode and with different types of faults (single- , two-, three-phase short circuits);
- study of the microprocessor protective relay MR-301 operation in nominal operating mode of the line and with different types of faults (single- , two-, three-phase short circuits);
- external controlling of MP-301 microprocessor relay (by connection to PC or notebook).
The training system is supplied with:
- a set of methodological and technical documentation intended for teaching staff;
- a software.
Experiments provided
- Study of the microprocessor protective relay MR-301 and its software.
- Setting the parameters of protection against overcurrent and checking its work with different types of faults (single- , two-, three-phase short circuits).
- Setting the parameters of protection against zero-sequence overcurrent and checking its work with different types of faults (single- , two-, three-phase short circuits).
- Setting the actuation of the protective relay MR-301 from external signals.
- Configuring receipt of discrete control signals, assigning commands for the protective relay MR-301 and checking its work with different types of faults (single- , two-, three-phase short circuits).
- Study of operation of power unit BPT-615 for power supply of the microprocessor relay protection devices in “main power” and “standby power” modes.
Technical specifications
| Power supply | 3~50Hz 380V 3P+PE+N | |
| Power consumption, Watt, max | 500 | |
| Stand overall dimensions, max: | ||
| Width, mm | 1310 | |
| Height, mm | 1460 | |
| Depth, mm | 600 | |
| Weight, kg, max | 60 | |
Scope of delivery
- laboratory training system – 1 pc.;
- accompanying materials in electronic format – 1 pc.;
- passport – 1 pc.