Instrument Transformer Test Sets

Metrological Mobile Lab

HML-LPIT

Mobile Laboratory for testing current and voltage electronic (low-power) transformers

MarsLab-CT/VT

High-voltage metrological mobile lab rated at 6÷330 kV, 50 A ÷ 5 kA

Current Transformer Test Sets

Marstest-CT-5

CT testing sets up to 6 kA

IT5000

Adjustable current source up to 6 kA

TTIP

Reference current transformers
(accuraсy class 0.05)

Voltage Transformer Test Sets

Marstest-VT-1

High-voltage single-phase test set for voltage transformers up to 330 kV

Marstest-VT-3

High-voltage three-phase test set for voltage transformers up to 10 kV
(up to 35 kV)

CHVT

Reference capacitive transducer for testing voltage transformers 6÷500 kV
(accuraсy class 0.05, 0.1)

Instrument-class High-voltage Capacitors (IHC)

Standard high-voltage air capacitors 6÷500 kV (accuraсy class 0.05, 0.1)

CHVT-500

Instrument voltage transducer for testing VTs up to 500 kV (accuracy classes 0.05 and 0.1)

CT/VT Test Comparators

Energomonitor-3.3T1-C

Portable precision comparator

Energomonitor-3.1KM-E

Comparator for testing smart meters compatible with electronic transformers

Energomonitor-3.1KM

High-precision comparator

Energomonitor 61850

Comparator for conventional and digital transformers

MarsComp K-1000

Current/voltage comparator for LPIT

Reference instruments for digital substations

Energomonitor 61850

MarsGen-61850

MarsTest-61850

Test equipment

MarsTest-CT-300

Current transformer test set

In 2023, Mars-Energo successfully supplied a set of equipment for the calibration of electronic low-power voltage transformers (LPIT) to the Republic of Korea. The set included two essential components:

1) Capacitive High-Voltage Transducer CHVT-220, accuracy class 0.05 at 220 kV/√3

2) Dual-channel Voltage Comparator MarsComp K-1000, accuracy class 0.01

The end user of this equipment is the research center of Hyundai company.

The calibration of the capacitive high-voltage transducer was conducted at Korea Research Institute of Standards and Science (KRISS).

The calibration report confirms that all metrological characteristics of the high-voltage transducer impeccably align with the customer's stringent technical requirements.

In response to the customer's specific needs, Mars-Energo specialists carried out preparatory checks and calibration of an additional electronic unit for the capacitive high-voltage transducer.