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    ECIT-1s

    ECIT-1s is a family of single-phase combined current and voltage instrument transformers designed for medium-voltage applications (from 3 to 35 kV). Featuring digital outputs, ECIT-1s serves as a data source for measurement, protection, and automation devices.

    for medium-voltage electrical installations up to 15 kV

    ECIT-1S-15

    Open image

    Modification

    ECIT-1s-15

    ECIT-1s-35

    Voltage Class

    up to 15 kV

    up to 35 kV

    Rated primary current, In

    50 A

    50 A

    Current accuracy class

    0.5S/5PR500

    0.5S/5PR400

    Rated primary current up to

    1250 А

    1250 А

    Rated short-time thermal current, Ith

    25 kA/1 s

    25 kA/1 s

    Rated dynamic current, Idyn

    63 kA

    63 kA

    Rated primary voltage, Upr,
    Voltage accuracy class

    (3...16)/√3 kV, 0.5/3P

    (6...36)/√3 kV, 0.5/3P

    Rated primary voltage up to, Um

    17.5 kV

    40.5 kV

    Rated lighting impulse withstand voltage

    95 kV

    190 kV

    Rated short-duration power frequency withstand voltage (1 min)

    38 kV

    80 kV

    Design

    dimensions, mm

    weight, kg

     

    284 × 190 × 443

    ≤ 10

     

    410 × 190 × 592

    ≤ 14

    Sampling rate, Hz

    14400, 12000

    Interfaces

    2 × 100Base‑TX (FX LC MM), RSTP, IEC 62439-3 PRP

    Protocols

    IEC 61850-9-2: 2 × SV (4800, 14400 fps), optional SP (50...4800 fps),
    IEEE C37.118.2 (1...400 fps), IEC 61850-8-1 GOOSE, IEC 60870‑5‑104, Modbus TCP, web interface

    Binary output

    140 VAC 0.46 A, 30 VDC 1 A, switching time 5 ms

    Time sync

    PTPv2 (IEC 61850-9-3), IRIG-A (RS-485)

    Disturbance recording

    10 records (1+4 s), sampling rate 2400 or 2000 Hz

    Relay protection

    PVOC, PIOC

    Optional

    Extended protection and automation suite: PVOC/PDOC, PIOC, SARC, PTEF/PDEF, PTUV, PPBR, RBRF, Busbar Blocking logic, Dead/Live line detection

    Publication SP, merging SP

    Three-phase energy metering

    Power supply

    18...36 VDC, 10 W

    Operating conditions

    -60(-70)…+50(+60) °С, RH — up to 100 % (+25 °С), 84…106.7 kPa, 1000 m above sea level