Выбор ТТ для работы с устройствами siprotec

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  • Siemens AG 2007

    SIPROTEC

    ENERGY MANAGMENT ..

  • Page 2 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

  • Page 3 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

  • Page 4 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    ,

    ,

    ,

    ,

    ,

    ( 75C)

    /

  • Page 5 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    :

    ( )

    Is

    Ip = Ip

    I0

    . N1 N2

    Rba

    Rct Ip Is

    I0

    L0 U2 E

    Ip

    ,

    N1

    :

    N2

  • Page 6 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    :

  • Page 7 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    P (IEC60044-1)

    (

    .

    .. ..

    % %

    1 60 1,8 5 5P

    3 10 10P

    ( )

    : 5 P 20 30 VA

    (ALFN n)

    P =

    % ALFN IN

  • Page 8 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    ALF

    ( )

    ALF=

    ALF= Pb =

    PT = (=Isn2 x RCT)

    Ptotal =

    TTPP`

    TTP

    bP

    ALFALF`

    )PP(ALF)PP`(ALF` TbT

    :

    , :

    ALF

  • Page 9 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    ALF

    ,

    () .

    . -1,5

    -1

    -0,5

    0

    0,5

    1

    1,5

    kmax

    s

    I

    i ALF'I2 n

    dt(t)i)R(R

    dt(t)u(t)

    sBct

    h

    -1,5

    -1

    -0,5

    0

    0,5

    1

    1,5

    +max

    -max

    max

  • Page 10 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    I/I

    10

    5

    0 5 10 15 Iy/I

    10P10, 15 VA

    < 15 VA

    = 15 VA

    > 15 VA

    Fi = 10%

    :

  • Page 11 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    : :

    10 12,5 15 20 25 30 40 50 60 75 A ( )

    : IN,G = 7330 A : 8000 A

    1 A 5 A ( 2 A )

    5 A: : ; : ( Z = S/(I)

    2 = 15 VA/25 A2 = 0,6 O)

    1A: : ( Z = S,/(I)2

    = 15 VA/1 A2 = 15 O); : ( )

    : 1A

  • Page 12 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    E = ()

    IP =

    Is =

    I0 =

    RCt = ..-

    RBC= -.

    US = . . ()

    TP = .

    (. )

    : 1500/1A, 5P20, 50VA, Rct = 3

    I0

    E

    RBC

    RCt Ip Is

    I0

    L0 US E

    Ip

    ,

    TP

    E = Is(Rct + Rba)

    :

  • Page 13 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    P

    , ,

    (5P20 5% 20- )

    ( )

    :

    ,

    .

    .

    . :

    ( : 80%)

    (

    ,

    )

  • Page 14 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    Ip [A]

    IS [A]

    I0 [A]

  • Page 15 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    ][st

    ])[( Ati

    ][st

    snp iKi ,/])[( Ati

    :

    60044-1: AC

    , ..:

  • Page 16 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    45

  • Page 17 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    1/3

    . G1

    G G

    6,9 kV

    69 kV

    30

    G1 G2

    12 MVA

    5,6 MVA

  • Page 18 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    2/3

  • Page 19 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    3/3

    0,18

    0,15

    :

    1 0,15 0,25

    ( )

  • Page 20 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    (Ktd) ( )).

    (ALF):

    pN

    SSCtd

    I

    I KALF

    (ALFN):

    ALF RR

    R R ALF

    CtBN

    CtBCN

    :

    ALF(`) -

    ALFN () -

    Ktd () -

    ISSC (I ) -

    IpN (I ) -

    RCt (R) - 75C

    RBC (R`=R+ R) ( + )

    RBN (R) : SIP-2008

  • Page 21 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    U

    (DC )

    (DC

  • Page 22 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    .

    . .

    TN :

    freeNtd t T1K

    max AC

    DC/ACmax

    -0,5

    0

    0,5

    1

    1,5

    2

    2,5

    0

    2

    4

    6

    8

    10

    12

    kmax

    s

    I

    i

    max

    tfrei

    10ms

  • Page 23 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    DC

    , ,

    - DC- ()

  • Page 24 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    Ktd

    BDC

    /

    BAC

    Ktd = 1 + S S

    P S P

    S

    Ktd = BDC BAC

    n' > IF

    ICT

    ,

    DC-

    n' > Ktd IF

    ICT

    DC

    : p = S =

  • Page 25 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    Ktd

    1.

    :

    2. DC

    , ,

    Ktd

    3. :

    Ktd i

    DC-.

    ISSC = KSSC * Ipn KSSC = ISSC / Ipn

    ISSC = KSSC /Ktd* Ipn

    KSSC = Ktd * ISSC / Ipn

    4. ,

    T .

    Ktd

  • Page 26 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    DC-

    tM =

    P =

    S = CT

    (5 s)

    0,00

    5,00

    10,00

    15,00

    20,00

    25,00

    30,00

    0 20 40 60 80 100 120 140 160 180

    tM =

    tM = 40 ms

    tM = 10 ms

    tM = 20 ms

    tM = 60 ms

    P ms

    Ktd

    Ktd = 1 + P S

    SP P

    -tM

    e S

    -tM

    - e

  • Page 27 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    tfree =

    tfree = 30 ms

    tfree = 20 ms

    tfree = 10 ms

    0

    5

    10

    15

    0 0.05 0.1 0.15 0.2TN [s]

    Ktd

    .

    .

    7UT612

    tfree = 8 ms

    td

    K

    ALF'pnI

    extmax,k,I

    tfree = ~8 ms Ktd= 4

  • Page 28 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    , 1

    ,

    1 ,

    ,

    ,

    .

    ,

    .

    1

  • Page 29 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    ,

    , I >>.

    ,

    .

    ,

    .

    nI

    IALF' 20

  • Page 30 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    1/4

    xd = ..

    uk = - %

    Rrelay = 0.1 , ( 0.1 VA)

    4.5kA

    2.1 kA

    ( ) l= 40m

    A= 4mm2 l= 100m

    A= 4mm2

    l= 60m

    A= 4mm2

    7UT633 7UM62

    -T (G S2)

    6000/1A

    5P20

    20 VA

    Rct = 18

    -T (T LV1)

    6000/1A

    5P20

    20 VA

    Rct = 18

    -T1

    120MVA

    110/10.5 kV

    50 Hz

    uk = 14%

    -G1

    120 MVA

    10.5 kV,

    50 Hz

    xd= 0.16

    -T (T HV)

    1200/5A

    5P20

    50 VA

    Rct = 0.96

    47.1kA

    G

    3~

    45.4kA

    132 kV, 50Hz

    :

  • Page 31 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    2/4

    Ktd = 5 ( )

    0.625 0.1mm 4

    m 60m

    mm 0.01752

    0.1A

    l2RRR

    2

    2

    RelayLeadBC

    ALF = 37.8

    ALF = 40.8

    37.8 < 40.8

    40.8 0.625 18

    20 1820

    RR

    RRALFALF

    BCCt

    BNCtN

    201A

    VA 20

    I

    SR

    22sn

    nBN

    c = .

    : c = 1.1

    :

    :

    37.86000A

    A 4513635

    I

    IKALF

    pn

    fault) (ext.max scctd

    A 45363 0.16 kV 10.5 3

    kVA 120000 1.1

    x U 3

    S c I

    ' ' d NG

    NG ) (. max scc

  • Page 32 Aug-07

    Siemens AG 2007

    Power Transmission and Distribution Energy Automation

    3/4

    Ktd = 3 ( )

    0.45 0.1mm 4

    m 40m

    mm 0.01752

    0.1A

    l2RRR

    2

    2

    RelayLeadBC

    ALF = 23.6

    ALF = 41.2

    23.6 < 41.2

    41.2 0.45 18

    20 1820

    RR

    RRALFALF

    BCCt

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