Indoor current transformers bus-bar type ТШЛ-10 (TSHL-10)

Indoor current transformers bus-bar type ТШЛ-10 (TSHL-10)

Indoor current transformer bus-bar type TSHL-10Description

The transformers are intended for powering measuring, protection and control circuits, for insulation of secondary current circuits from high voltage in electric alternate current appliances for voltage class 10 kV with 50 or 60 Hz frequency.

The transformers are intended for embedding in closed bus-bars (TSHL-10; TSHLP-10), factory-assembled switch-gears (TSHLK-10; TSHLPK-10), as well as for embedding in closed bus-bars and switchgears with round bar (TSHL-10-I).

The transformers for differential protection are delivered in compliance to the special order.

The transformers are manufactured in climatic versions "УT" (moderate-tropical) according to the standard requirements of GOST 15150 location category 3 and are intended for usage under the following operating conditions:

  • altitude above sea level is not higher than 1000 m;
  • maximum operating temperature considering the overheating inside switchgear or bus-bar is 70 °C;
  • environment should be non-explosive, without corrosive steams in concentrations that are likely to destroy metal or insulation (atmosphere type II as to GOST 15150);
  • mounting in any position.

Bus-bar is to be connected compulsory to transformer's tapping with "Ш" marking.

Transformers are supplied with protective transparent covers for separate sealing of secondary winding's tappings (example of sealing).

The transformer is patented
Patent Certificate №6271

Table 1. Technical Data 

Parameter

Normal value

Rated voltage, kV

10 or 11

Maximum operating voltage, kV

12

Rated primary current, A:
TSHLP 10; TSHLPK-10; NIKP-10-1; TSHLPK-10-1
TSHL 10; TSHLK-10; TSHL-10-1; TSHLK-10-1

1000, 2000
2000, 3000, 4000, 5000

Rated secondary current, A

5

Number of secondary windings

2, 3*

Accuracy class:

0,2; 0,5; 0,2S; 0,5S

of secondary winding for measurement;

Accuracy class of secondary winding for protection

10P*, 5P

Short-circuit current ratio of secondary winding for protection

25

Rated alternate current frequency, Hz

50, 60

Rated burden of the winding for measurement at cos φ = 0,8, VA:

20

Rated burden of the winding for protection at cos φ = 0,8, VA

30

Three-second thermal current (ratio)

35

Test voltage of, kV:

 

one-minute of industrial frequency

42

of lighting impulse

75

* The ability to manufacture transformer with three windings with required parameters should be agreed upon ordering.

Table 2. Dimensions

Type of transformer

Dimensions, mm

Weight, kg

Pic.

B

C

D

d

A

L

B1

h

TSHLP-10
TSHLPK-10

35

38

300

110

195±2

24

14

16

49

1
1, 3

TSHLP-10-1
TSHLPK-10-1

-

-

2
2, 3

TSHL-10
TSHLK-10

40

135

350

175

181±2

29

18

20

52

1
1, 3

TSHL-10-1
TSHLK-10-1

-

-

2
2, 3

General view of transformer (drawing)