Technical Data Security Kit autotransformers 330/110 kV differential, distance and current principle (main and backup set)

Set differential protection AT-330 kV (primary and backup)

1.

Type

2.

Manufacturer

3.

Standards

IEC 61850

4.

Technical description

4.1

Number of setting groups, not less

4

4.2

Number of signaling LEDs pcs., Not less

12

5.

Number of signaling LEDs things., Not less

5.1

Rated measuring current, A

1.0 or 5.0

5.2

The number of current inputs, however, units.

9

5.3

Thermal current (continuous)

4 х In

5.4

The current one-second resistance

100 х In

5.5

Operating range

(0,1 – 100) x In

5.6

Consumption per phase at In, VA

Not less 0,3

5.7

Operating check current circuits

Yes

6.

Circuit AC terminals

6.1

Nominal test voltage,V

Un = 100

6.2

Number of voltage inputs, however, units.

4

6.3

Overload (long)

420 V

6.4

Permissible ten-overload

450 V

6.5

Power consumption per phase, VA

< 0.3

6.6

Operating check voltage circuits

Yes

7.

Operating frequency alternating current circuits and voltage terminals

7.1

Rated frequency, Hz

fn= 50

7.2

Operating frequency range

50 ± 5%

8.

Operational DC

8.1

Rated operational voltage DC ,V

Un = 220

8.2

The working voltage range of the operational DC

(0,8 – 1,1) x Uppn

8.3

Ripple in the DC voltage

Not more than 6% of the mean

8.4

Operation terminals shall not be violated with the disappearance or reduction of lower U-set limit on the time ,sec

0,04

8.5

There should be no false positives or disrupt normal function terminals when removing or power supply U

Yes

8.6

Supply voltage of reverse polarity must not cause damage to the terminal

Yes

9.

Binary input terminal

9.1

Rated voltage of each input ,V

Uin.n = 220

9.2

The operating range of each input

(0,8 – 1,1) x Uin.n

9.3

Voltage "unwarranted" triggering each input ,V

(0.65 – 0.8) x Uin.n

9.4

The digital inputs must provide:

9.4.1

failure to function when a ground fault on any of the poles;

Yes

9.4.2

Malfunction during operation auto search "ground" at fault detection on any of the poles

Yes

9.5

The dropout ratio

К ≥ 0,95

9.6

Freely programmable binary inputs

Yes

10.

Contact outputs terminals

10.1

Commute DC voltage, V

220

10.2

Exclude galvanic connection with the elements located inside the terminal

Yes

10.3

Making capacity at inductive load with L / R> 10 msec

10 A for a time, sec

1.0

10 A for a time, sec

0.2

10.4

A continuous flow of current, A

5

10.5

Breaking capacity current 1 / 0,4 / 0,2 A at a voltage of 48/110/220 V and the time constant of the circuit L / R ≤ 40 msec

Yes

10.6

Freely programmable output relay

Yes

11.

Differential Protection

11.1

Minimum relative operating current

(0.1 – 0.6) r.u.

11.2

Brake current end of Phase 1

(0.2 – 1.5) r.u.

11.3

Differential current end of Phase 2

(1.0 – 10) r.u.

11.4

The slope portion 2 braking characteristics

(10.0 – 50.0) %

11.5

Slope portion 3 brake characteristics

(30.0 – 100.0) %

11.6

Differential section

(2.5 – 30) r.u.

11.7

Lock on the second harmonic

(5.0 – 50.0) %

11.8

Lock on the fifth harmonic

(5.0 – 100.0) %

12.

Differential protection zero sequence

12.1

Minimum relative operating current

(0,02 – 1) r.u.

12.2

Brake current end of the 1st section

(0.1 – 10.0) r.u.

12.3

The slope of the phase 2

(0 – 150) %

12.4

The slope of the phase 3

(15 – 150) %

13.

Thermal overload protection

13.1

The level of alarm

(50 – 99) % enthalpy

13.2

Tripping current

(0,1 – 4) r.u.

13.3

Return of excess temperature level

(10-95)% off enthalpy

14.

Current protection zero sequence

14.1

3U0>Dir

(0.5 – 80) %

14.2

Minimum current operation

(0.08 – 4) r.u

14.3

Relay characteristic angle

– 95° tо +95°

15.

Overcurrent protection

15.1

Minimum current operation

(0.002 - 60.0) r.u.

15.2

Relay characteristic angle

– 95° tо +95°

16.

Distance protection (21)

16.1

Number of zones

4

16.2

Characteristic

quadrangular

16.3

Setting resistance, Ohm

0,05 tо 500,00

16.4

Error setting resistance

± 5 %

16.5

Remote characteristic angle

30 to 90 ° in step of 1

Control orientation:

16.6

Characteristic angle

30 to 90 ° in step of 1

16.7

The maximum angle

30 to 90 ° in step of 1

16.8

Exposure time ,sec

0,00 tо 10,00

17.

Ground distance protection (21N)

17.1

Number of zones

4

17.2

Characteristic

quadrangular

17.3

Setting resistance, Ohm

0,05 tо 500,00

17.4

Remote characteristic angle

30 to 90 ° in step of 1

Control orientation:

17.5

Characteristic angle

30 to 90 ° in step of 1

17.6

The maximum angle

30 to 90 ° in step of 1

Compensation for residual:

17.7

Amplitude Z0/Z1

0,00 tо 10,00

17.8

Угол Z0/Z1

–90 tо 90°

Компенсация взаимоиндукции по нулевой последовательности:

17.9

Амплитуда Z0М/Z1

0,00 tо 7,00

17.10

Angle Z0/Z1

–90 tо 90°

17.11

Exposure time ,sec

0,00 tо 10,00

18.

Detection of power swings

18.1

Full coverage of internal resistance characteristics "in-line", Ohm

0,10 – 500,00

18.2

Full coverage of internal resistance characteristics "to the tires" Ohm

0,10 – 500,00

18.3

External blocking characteristic wobble degrees.

(20 – 90)°

18.4

Timers ,sec

0,00 – 10,00

19.

The control current circuit

19.1

Tripping current

(5 – 100) %

20.

Operating check circuit AC

20.1

The current operation, reverse the sequence

(0,05 – 0,5) r.u

20.2

The level of change in the current operation

(0,08 – 30) r.u

21.

Tripping logic

21.1

Action trip

3-phase

21.2

Pulse width off (timers),sec

0,00 – 50,00

22.

Measurement

22.1

Frequency

Yes

22.2

Voltage

Yes

22.3

Current

Yes

22.4

Phase angle

Yes

22.5

Аctive power, P

Yes

22.6

Reactive powe , Q

Yes

22.7

Full power, S

Yes

22.8

Power factor, cos (ϕ)

Yes

23.

Event Counter

23.1

The counter value

500

23.2

The maximum count rate,pulse/s

10

24.

Disturbance recorder

24.1

The number of recordable analog channels

12

24.2

Time resolution ,msec

1

24.3

The number of events in the list, at least

10

25.

oscillographic testing

25.1

Starts:

25.2

start-up, dropout, or operate any item

Yes

25.3

digital input change of state

Yes

25.4

change of state contact output

Yes

25.5

Storage of data in nonvolatile memory

Yes