Technical requirements to the terminator of overstrain 330 kV

1.

General technical descriptions

1.1

Standard

GOST 52725-2007, operating standards of IEC

1.2

Manufacturer

*

1.3

Conditional denotation (brand)

*

1.4

Most working tension is in an electric network, kV

363

1.5

Nominal tension kV

288

1.6

Most possible protracted working tension,kV

230

1.7

Nominal bit current, kA

20

1.8

Class of digit of line on IEC

4

1.9

Specific power-hungryness, kDzh/Kv

7

2.

Value of climatic factors of external environment:

2.1

Category of placing (GOST 15150-69)

1

2.2

Range of workings temperatures, С

from -32 to +40

2.3

Thickness of wall of ice-storm, mm

18

2.4

Possible speed of wind in the conditions of ice-storm, m/s

22

2.5

Possible speed of wind in the conditions of absence of ice-storm, m/s

28

2.6

Height above a level exterminating, m

1000

2.7

Seismic stability, marks on the scale of MsK-64

6

2.8

Level of contamination of atmosphere in the district of placing of substation on the standard of MEK 60815-2008:

"С"

2.9

Specific pathlength loss of external isolation, "phase-earth" measured at tension, mm/kV

35

3.

Requirement to electric durability of isolation:

3.1

Remaining tension, kV, no more:

3.1.1

• at the impulse of current (1/2 mcsec) of 10 kA

746

3.1.2

• at the interconnect impulse of current (30/60 mks) of 1 kA

587

3.1.3

• at the interconnect impulse of current (30/60 mks) of 2 kA

601

3.1.4

• at a thunderstorm impulse of current (8/20 mks) of 5 kA

656

3.1.5

• at a thunderstorm impulse of current (8/20 mks) of 10 kA

691

3.1.6

• at a thunderstorm impulse of current (8/20 mks) of 20 kA

746

3.2

Through current of shorting circuit, kA:

3.2.1

Firmness to the currents of shorting circuit, kA

100

3.2.2

Duration of short circuit on earth, sec

10

4.

Requirements to the construction, making and materials:

4.1

Type of grounding neutrally

Deafly grounding

4.2

A possible pull of wires is in horizontal direction,

1000

4.3

External isolation (material/color of coverage)

polymer (preferably white)

4.4

Power contact conclusion

Aluminium

4.5

Presence of impulsive meter with possibility of measuring of current of loss

Yes

4.6

Isolated basis for setting of meter of wearing-outs

Yes

4.7

Structural implementation

Explosion fire safely

4.8

Connecting possibility to ACS (to the subsystem of monitoring of power equipment) with control of the followings parameters:

4.8.1

• Registration of wearing-outs is TOO;

Yes

4.8.2

• Fixing of time of wearing-out;

Yes

4.8.3

• Fixing of value of impulse of current of passing through TOO

Yes

5.

Requirements on reliability:

5.1

Term of service, years,

30

5.2

Guarantee term:

5.2.1

• from the moment of putting into an operation, years

5

5.2.2

• from the moment of reception-transmission on storage of Customer, years

5,5

6.

Completeness of terminators of overstrains

6.1

Terminator of overstrain in assembling in obedience to the list of acquisition

Yes

6.2

Screening rings for protecting from corona effect and providing of equitability tension on length

Yes

6.3

System of monitoring of the state TOO with possibility of remote read-out

Yes

6.4

Operating document in Russian or Ukrainian language.:

Yes

6.5

Technical passport

On every TOO

6.6

Assembly instruction and drafts and to exploitation

1 part on TOO

6.7

List of acquisition

On every TOO

6.8

Protocols of test on a factory-producer

On every TOO