CUSTOMER-TAILORED PRODUCTION

Electroshield-C° manufactures products with parameters specified by the Customer, which provides a number of advantages if compared to other manufacturers.

The Customer receives the exact product they need.

Each product passes several stages controlled by an automated control system implemented at our facility and accompanied with an individual flowchart.

1. A transformer computing model prepared based on the required parameters and characteristics with a special computing program and compared to physical capability of production.
2. Materials and complete set selected based on results of the computation.
3. Each stage the product passes through the production areas registered in a flowchart, results of the in-process and final control are also registered there.

Such approach to serial production enables us to manufacture transformers with identical characteristics both for the first order and when spare parts and accessories or replacement after several years with the same kind of transformers are needed, and to complete an order requiring individual design with non-standard set of characteristics.

Non-standard parameters for individual design systems:

А) Rated measurement error from 0.1% up to 200% of rated current with accuracy class of 0,2S.

B) Any combination of accuracy class (up to 0.2S) and burden (from 1 VA and higher)

C) High thermal resistance: 40 kA starting with the rated current of 100 А.

D) Current transformers with 5 secondary windings.

E) Primary current switching over by exactly a half (for example 150 А and 300 А).

F) Different transformation ratios on measuring and protection windings;

G) Different taps on the secondary circuit for objects with planned capacity variations.

H) Combination of various values of instrument security factors and accuracy limit factor.

I) Specified error curve within GOST.

Example of a support type instrument current transformer with non-standard parameters

TLO-10 М7ACЕ-0.2SFS7/0.5FS5/10Р20 /10Р20- 5/20/30/30-1500(2000)-2000-2000-2000/5 N2 а 40 kА

М7 — transformer dimensions

А — secondary winding terminals on the transformer body are located at the end surface

С — availability of a protection and seal cover for the measuring winding

Е — with switching over on the secondary winding

0,2S — accuracy class of the measuring secondary winding

FS7 — instrument security factor of the secondary measuring winding (standard factor is 10)

0,5 — accuracy class of the measuring secondary winding

FS5 — instrument security factor of the secondary measuring winding (standard factor is 10)

10Р — accuracy class of the measuring secondary winding

20 — accuracy limit factor of protective winding (standard factor is 10)

10Р — accuracy class of the measuring secondary winding

20 — accuracy limit factor of protective winding (standard factor is 10)

5 — rated secondary burden of the measuring secondary winding  (standard factor is 10)

20 — rated secondary burden of the measuring secondary winding  (standard factor is 10)

30 — rated secondary burden of the measuring secondary winding  (standard factor is 15)

30 — rated secondary burden of the measuring secondary winding  (standard factor is 15)

1500(2000) —  tap on the first measuring secondary winding with switching over function at variation of the rated primary current

2000 —  rated primary current

5 — rated secondary current

N — climatic modification

2 — placement category

а — insulation level

40 кА —short-time (one-second) thermal current