МАК-ru

Current transformer

Cheaper and smaller than many foreign analogues

Delivery terms do not exceed 4 weeks,
including tests and verifications. Popular products in stock

Prices do not depend on exchange rates

All possible measuring needs
in the current range
5-6000 А

Any accuracy classes,
up to laboratory
measurements

full cycle of acceptance tests according to GOST 7746-2015

Selection of transformer

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Primary winding current

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Secondary winding current

5 А

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* The prices of analogues are shown for information and were taken from the websites of official distributors

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MAK-ru current transformers stand out from their analogues

Advantages

Reliability and safety

  • 01

    Transformers are manufactured as non-disassembled and sealed, which excludes access to the secondary winding.

  • 02

    The housing is made of glass-filled polyamide (self-extinguishing material) providing high strength in a wide temperature range as well as the highest dielectric parameters.

  • 03

    Maintenance free.

  • 04

    Modern packaging protects against any damage during transportation.

  • 05

    Each transformer has a QR code that provides quick access to all its specifications, production and verification dates, testing results.

  • 06

    Service life - 25 years.

Ease of installation and fixing

  • 01

    Suitable even for very limited spaces thanks to small dimensions.

  • 02

    Can be securely fastened to busbar or cable of various cross sections and configurations, mounting plate and DIN rail; full set of fasteners is included in the delivery.

  • 03

    Saves internal space in the cabinet: the dimensions enable to perform busbar wiring to circuit breakers without the use of expansion poles.

  • 04

    The transformer housing has a textured surface, which reduces the chance of slipping and falling during installation.

We can produce Transformers with any parameters on request

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Possibility to produce transformer with any parameters (e.g. 1356А/8А)
Any primary winding current
Any secondary winding current
With extended (up to 200% of rated) primary current range
including the capability to operate for a long time at this current
including with confirmation of laboratory verification
Any accuracy class
including laboratory (0,2S)
including for the use in commercial electricity metering
Possibility to produce transformers in the customer's corporate colors

Services for qualified verification of measuring transformers of foreign manufacturers

Regular verification

7 working days

*Urgent verification possible

Send a request for verification

Design/standards

Design/standards:

thermoplastic with 20% fiberglass filling

Insulation class Е:

120°C max.

Operating temperature range, °C:

-10… +40

Storage temperature, °C:

-45… +50

Rated operating voltage, kV:

0,4

Maximum operating voltage, kV:

0,72

Test voltage:

2 kVrms50 Hz 1 min.;
2,2 kVrms 50 Hz 1 min. (tropical version)

Testing up to 5 kV is possible

Rated mains frequency, Hz:

50…60

Primary winding rated current, A:

1, 5, 10, 15, 20, 30, 40, 50, 75, 80, 100, 150, 200, 300, 400, 500, 600, 750, 800, 1000, 1200, 1500, 1600, 2000, 3000, 4000, 5000, 6000 (согласно ГОСТ 7746)
Transformers can be produced with any primary winding current

Secondary winding rated current, А:

5; 1
Transformers can be produced with any secondary winding current

RATED LOAD CAPACITY AT cos φ = 1,0, VA:

0,5; 1; 2; 2,5; 5

RATED LOAD CAPACITY AT cos φ = 0,8, VA:

3; 5; 10; 15; 20; 25; 30; 40; 50; 60; 75; 100

ACCURACY CLASS:

0,2; 0,2S; 0,5; 0,5S; 1; 3 (according to GOST 7746)

THERMAL SHORT CIRCUIT CURRENT (Ith)

Current transformers with primary winding: 40x In, busbar type: 60xIn

DYNAMIC SHORT CIRCUIT CURRENT

(Idyn) 2.5 x Ith

RATED SAFETY FACTOR
OF SECONDARY WINDING DEVICES FOR MEASUREMENTS:

5;
10

RATED MAXIMUM MULTIPLICITY OF SECONDARY
WINDING DESIGNED FOR PROTECTION:

5;
10

DEVICE PROTECTION FACTOR:

(FS) 5, 10

PROTECTION CLASS:

IP20

PERIOD BETWEEN VERIFICATIONS:

8 years

SERVICE LIFE:

25 years

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Transformer production company

ELERON uses the latest production line that was introduced in 2020 and covers all production process stages – from designing to packaging – for manufacture of MAK-ru transformers.

Current capacity of the line allows to produce up to 50 000 transformers per year

In the near future, ELERON plans to launch production of open-core transformers, extending the product range to 17 standard sizes.

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