Research laboratory of national measurement standards of electric voltage and current
(Laboratory № 29-1)

The laboratory conducts such types of metrological works:
Conformity assessment of legal measuring instruments (MIs):

• current and voltage transformers;
• instruments for measuring the impedance, insulation resistance and relay protection parameters;
• power quality analyzers;
• railway energy meters;
• instruments for measuring the electrotechnical parameters of electrical installations.

Calibration of MIs:

• current and voltage reference transformers;
• power quality analyzers;
• calibrators of AC voltage and current;
• digital precision multimeters for current and voltage;
• AC comparators;
• test sets for instrument transformers;
• reference shunts;
• reference thermal converters (AC/DC transfer standards);
• instruments for measuring the high DC and AC voltage;
• high DC and AC voltage dividers.

Verification of legal MIs:

• power quality analyzers;
• three-phase digital devices for low voltage mains.