Instrument transformers

General description

Technical information

General description

Electroshield Samara produces a full range of instrument current and voltage transformers for indoor and outdoor installation.

During the production, the major focus is put on the quality of the components. They are subject to thorough incoming inspection before production start-up.

The professionalism of personnel and well-established design and production process make it possible to manufacture transformers by individual specifications in the shortest possible time.

Scope of application

Industrial enterprises.
Switchgear and control gear manufacturers, installation organizations.
Transportation organizations.
Companies working in the field of oil and gas extraction, electric-power industry.

The company constantly improves the products, expands the range of current transformers. Our new product is – a series of small-size current transformers TOL-SESH-10. Instrument transformers can be manufactured with insulation level "a" or "b" in accordance with GOST 1516.3-96.

Transformers of outdoor installation can operate at the environmental pollution rate (PR) of 4PR as specified by "Electrical Installations Code" for transformers with the category of creepage distance IV under GOST 9920-89.

Equipment certification:

Instrument transformers are provided with declaration of conformity.
Transformers have certificates of conformance with technical requirements of Rosseti, PJSC.

Technical information

Current transformers

Product type	TOL-SESH	TOL-SESH	TOL-SESH	TOL-SESH	TOL-SESH	TOL-SESH	TOL-SESH
Brief Description	support-type; metal foundation frame; indoor	support-type; rated primary current up to 2000A; indoor	support-type; rated primary current up to 3000A	support-type; small size; indoor	support-type; indoor	support-type; indoor	support-type; outdoor
Rated voltage	10	10	10	10	10	10	10
Design variants	01; 02; 03; 04; 05; 06; 07; 08; 09	11; 12; 13; 14; 21; 22; 23; 24; 31; 32; 33; 34; 51; 52; 53; 54; 61; 62; 63; 64; 71; 72; 73; 74; 81; 82; 83; 84	11-1; 12-1; 13-1; 14-1; 21-1; 22-1; 23-1; 24-1; 31-1; 32-1; 33-1; 34-1; 51-1; 52-1; 53-1; 54-1; 61-1; 62-1; 63-1; 64-1; 71-1; 72-1; 73-1; 74-1; 81-1; 82-1; 83-1; 84-1	11М; 21М; 31М; 41М	101; 102; 103; 104	201-11, 201-21, 201-31, 201-41; 201-12, 201-22, 201-32, 201-42; 201-13, 201-23, 201-33, 201-43; 201-14, 201-24, 201-34, 201-44	01; 02; 03
Secondary lead with flexible cables available	No	Yes	Yes	Yes	No	Yes	No
Rated metering precision class	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10
Rated protection precision	5P; 10P	5P; 10P	5P; 10P	5P; 10P	5P; 10P	5P; 10P	5P; 10P
Sec. winding rated load at cosȹ=1, VA	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5
Sec. winding rated load at cosȹ=0,8, VA	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60
Rated primary current, A	5-2 000	5-2 000	5-3 000	5-2 000	5-2 500	5-2 000	5-2 000
Rated secondary current, A	1; 5	1; 5	1; 5	1; 5	1; 5	1; 5	1; 5
Qty. of secondary windings	Up to 5	Up to 4	Up to 5	Up to 2	Up to 4	Up to 4	Up to 3
Rated safety factor of sec. winding for metering	2-35	2-35	2-35	2-35	2-35	2-35	2-35
Rated safety factor of sec. winding for protection	2-35	2-35	2-35	2-35	2-35	2-35	2-35
Climatic a placement category	U2; UHL2; T2	U2; UHL2; T2	U2; UHL2; T2	U2; UHL2; T2	U2; UHL2; T2	U2; UHL2; T2	UHL1; T1

Product type	TOL-SESH	TOL-SESH	TOL-SESH	TOL-SESH	TOL-SESH	TOL-SESH
Brief Description	support-type; metal foundation frame; indoor	support-type; indoor	support-type; indoor	support-type; plug-in primary contact; indoor	support-type; round; indoor	support-type; elliptic; outdoor
Rated voltage	20	20	35	35	35	35
Design variants	01; 02; 03; 04; 05; 06; 07; 08; 09; 31; 32; 33; 34; 35; 36; 37; 38; 39;	11; 12; 13; 14; 15; 16; 17; 18; 19; 21; 22; 23; 24; 25; 26; 27; 28; 29	01; 02;03; 04; 05; 06; 07; 08; 09	101; 102; 103; 104; 105; 106	01; 02; 03	04; 05; 06; 14; 15; 16
Secondary lead with flexible cables available	No	Yes	No	Yes	No	No
Rated metering precision class	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10	0,2; 0,2S; 0,5; 0,5S; 1; 3; 5; 10
Rated protection precision	5P; 10P	5P; 10P	5P; 10P	5P; 10P	5P; 10P	5P; 10P
Sec. winding rated load at cosȹ=1, VA	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5
Sec. winding rated load at cosȹ=0,8, VA	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60
Rated primary current, A	5-2 500	5-2 500	5-2 500	5-2 500	5-1 200	5-1 200
Rated secondary current, A	1; 5	1; 5	1; 5	1; 5	1; 5	1; 5
Qty. of secondary windings	Up to 5	Up to 4	Up to 5	Up to 4	Up to 4	Up to 6
Rated safety factor of sec. winding for metering	2-35	2-35	2-35	2-35	2-35	2-35
Rated safety factor of sec. winding for protection	2-35	2-35	2-35	2-35	2-35	2-35
Climatic a placement category	U2; UHL2; T2	U2; UHL2; T2	U2; UHL2; T2	U2; UHL2; T2	UHL1; T1	UHL1; T1

Product type	TSHL-SESH	TSHL-SESH	TSHL-SESH	TSHL-SESH	TPL-SESH	TPL-SESH
Brief Description	Busbar-type; indoor	Busbar-type; indoor	Busbar-type; indoor	Busbar-type; indoor	bushing-type; rated primary current 20-300 A	bushing-type; rated primary current 300-2000 A
Rated voltage	0,66	0,66	10	20	10	10
Design variants	01; 02; 03; 04	11; 12; 13; 14; 15; 16	01; 02; 03; 04; 05	01; 02; 03; 04	01; 02; 21; 22	11; 12; 31; 32
Secondary lead with flexible cables available	No	No	Yes	No	No	No
Rated metering precision class	0,2; 0,2S; 0,5; 0,5S; 1	0,2; 0,2S; 0,5; 0,5S; 1	0,2; 0,2S; 0,5; 0,5S	0,2; 0,2S; 0,5; 0,5S	0,2; 0,2S; 0,5; 0,5S	0,2; 0,2S; 0,5; 0,5S
Rated protection precision	5P; 10P	5P; 10P	5P; 10P	5P; 10P	5P; 10P	5P; 10P
Sec. winding rated load at cosȹ=1, VA	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	-	1; 2; 2,5	1; 2; 2,5
Sec. winding rated load at cosȹ=0,8, VA	3; 5; 7,5; 10; 15; 20	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50;	30; 50; 60; 75; 100	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60
Rated primary current, A	150-5 000	300-5 000	1 000-6 000	3 000-8 000	20-300	300-2 000
Rated secondary current, A	1; 5	1; 5	1; 5	1; 5	1; 5	1; 5
Qty. of secondary windings	1	1	up to 5	up to 4	up to 4	up to 4
Rated safety factor of sec. winding for metering	5-18	5-18	2-35	15-30	2-35	2-35
Rated safety factor of sec. winding for protection	5, 10, 15	5, 10, 15	2-35	15-30	2-35	2-35
Climatic a placement category	U2; T2	U2; T2	U2; T2	U2; T2	U2; T2	U2; T2

Наименование	TPL-SESH	TPL-SESH	TPL-SESH	TV-SESH	TV-SESH
Brief Description	bushing-type transformer rated primary current 20-300A; opportunity to manufacture secondary terminals with flexible wires; internal installation	bushing-type transformer rated primary current 300-2000A; opportunity to manufacture secondary terminals with flexible wires; internal installation	bushing-type	Integrated	Integrated
Rated voltage	10	10	10	10; 20; 35	10; 20; 35
Design variants	41; 42; 43; 61; 62; 63	51; 52; 71; 72	81	-	-
Secondary lead with flexible cables available	Yes	Yes	No	Yes	No
Rated metering precision class	0,2; 0,2S; 0,5; 0,5S	0,2; 0,2S; 0,5; 0,5S	0,2; 0,2S; 0,5; 0,5S	0,2; 0,2S; 0,5; 0,5S	0,2; 0,2S; 0,5; 0,5S; 1; 3; 10
Rated protection precision	5P; 10P	5P; 10P	5P; 10P	5P; 10P	5P; 10P
Sec. winding rated load at cosȹ=1, VA	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5	1; 2; 2,5
Sec. winding rated load at cosȹ=0,8, VA	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60	3; 5; 7,5; 10; 15; 20; 25; 30; 40; 50; 60
Rated primary current, A	20-300	300-2 000	5-2 000	50-6 000	50-5 000
Rated secondary current, A	1; 5	1; 5	1; 5	1; 5	1; 5
Qty. of secondary windings	up to 4	up to 4	up to 4	1	1
Rated safety factor of sec. winding for metering	2-35	2-35	2-35	3-25	3-50
Rated safety factor of sec. winding for protection	2-35	2-35	2-35	3-50	3-50
Climatic a placement category	U2; T2	U2; T2	U2; T2	O4	UHL1; T1

Voltage transformers

Product type	NOL-SESH 6,10,20,35 kV	ZNOL-SESH 6,10,15,20,35 kV
Brief Description	supporting internal or external installation	supporting internal or external installation
Rated voltage	6, 10, 20, 35	6, 10, 15, 20, 35
Rated voltage of primary winding, kV	6/√3 ...35/√3	6/√3 ...35/√3
Rated voltage of primary secondary windings, V	100/√3	100/√3
Nominal voltage of additional secondary winding, V	100/3, 100	100/3, 100
Classes of accuracy of primary secondary winding	0,2; 0,5; 1,0; 3,0	0,2; 0,5; 1,0; 3,0
Classes of acuracy of additional secondary winding	3, 3Р, 6Р	3, 3Р, 6Р
Climatic and placement category	U2; UHL2; T2; UHL1; T1	U2; UHL2; T2; UHL1; T1

Product type	3хZNOL-SESH 6, 10 kV	NALI-SESH 6, 10, 35 kV
Brief Description	Three-phase internal installation group	Three-phase group, indoor or outdoor
Rated voltage	6, 10	6, 10, 35
Rated linear secondary voltage, V	100	100
Nominal voltage of additional secondary winding, V	0,2; 0,5; 1,0; 3,0	0,2; 0,5; 1,0; 3,0
Accuracy class of additional secondary winding	3, 3Р, 6Р	3, 3Р, 6Р
Classes of accuracy of primary secondary winding	U2; UHL2; T2	U2; UHL2; T2; UHL2; T2
Accuracy class of additional secondary winding	3, 3Р, 6Р	3, 3Р, 6Р
Climatic and placement category	U2; UHL2; T2; UHL2; T2	U2; UHL2; T2; UHL2; T2