Русский
NTC-10.13 “Electrical measurements at substations and stations”
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 courses: “Electrical measurements at substations and stations”.
At the front panel are drawn electrical circuits of the objects under study. All circuits at the panel are divided into the groups according to the laboratory works being performed. At the panel are placed indicators of digital and pointer instruments, switching equipment, controls as well giving opportunity to change element parameters at laboratory works performing.
Measurements are conducted using pointer and digital instruments mounted in the upper part of the front panel:
- pointer voltmeter of direct activating;
- digital voltmeter of indirect activating;
- verification digital voltmeters;
- pointer amperemeter of direct activating;
- pointer amperemeter of indirect activating;
- verification digital amperemeters;
- digital frequency meter of universal actuating method;
- universal three-phase digital measuring instrument of direct connection;
- pointer power factor meter in a three-phase network of indirect connection;
- pointer three-phase wattmeter of indirect connection;
- digital multifunctional indirect active and reactive energy meter.
The stand is accompanied with a set of teaching materials and technical documentation intended for the teaching staff.
Experiments provided
- Measurement of alternating current with a switchboard amperemeter with direct connection and connection through a measuring current transformer.
- Measurement of alternating voltage with a panel pointer voltmeter with direct connection.
- Measurement of alternating voltage with a panel digital voltmeter when connected through a measuring voltage transformer.
- AC voltage frequency measurement using a digital panel frequency meter with direct connection and connection through a voltage measuring transformer.
- Measurement of active power in a three-phase three-wire electrical network with a panel pointer wattmeter when connected through two measuring current transformers and two measuring voltage transformers.
- Measurement of the power factor in a three-phase three-wire electrical network with a switchboard power factor meter when connected through two measuring current transformers and two measuring voltage transformers.
- Measurement of voltages, currents, powers, power factors and frequencies in a three-phase four-wire electrical network using a digital multifunction measuring instrument with its direct connection.
- Measurement of active and reactive energy of three-phase alternating current by an electronic meter when connected through measuring current and voltage transformers.
- Tolerance determining of the measuring current transformer.
- Tolerance determining of the measuring voltage transformer.
Technical specifications
| Power supply | ~3 50 Hz 380 V (three-phase five-wire AC network with a split working neutral and protective conductor) |
| Consumed power, W, not more than | 50 |
| Stand overall dimensions, not more than | |
| width, mm | 1350 |
| depth, mm | 600 |
| height, mm | 1500 |
| Weight of the stand, kg, not more than | 70 |
Scope of delivery
- training laboratory stand – 1 pc.;
- passport – 1 pc.;
- supplementary materials in electronic format – 1 pc.