Speed protection relays

8 companies | 9 products
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distance protection relay
distance protection relay
SIPROTEC 7SA series

... distance protection have been designed particularly for the protection of lines in medium-voltage and high-voltage systems. With the high-performance DIGSI 4 engineering tool, the SIPROTEC 4 devices offer user friendly ...

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SIEMENS Energy automation and smart grid
current protection relay
current protection relay
PCS-987R

... supervision (VTS), rotational speed signal supervision, optical fiber communication supervision

  • Protection features: Torsional vibration modal divergence protection; shaft cross-section accumulative
  • ...

    speed protection relay
    speed protection relay
    SEL-T400L

    ... Time-Domain Line Protection Apply the SEL-T400L Relay for ultra-high- speed and secure protection of critical lines. With breakthrough time-domain technologies, the SEL-T400L securely ...

    under-voltage protection relay
    under-voltage protection relay
    FPC 400

    Tripping current: 5,000, 1 mA

    ... FPC 400 is a family of current or voltage digital protection relays with easy to use interface meant for variety of solutions in industry and power distribution. Its robust design enables it to be placed in demanding ...

    speed protection relay
    speed protection relay
    PH3

    Trigger voltage: 250, 30 V

    ... The Speed Sensing protector trip relay monitors rotating equipment using a magnetic pick-up and provides three output contacts which can be used to initiate alarms or shutdown signals. The relay ...

    earth-leakage protection relay
    earth-leakage protection relay
    PR 260

    ... The PR 260 electric motor protection relay, known as the motor management relay, is designed for motor protection and control, which integrates protection, control, and ...

    earth-leakage protection relay
    earth-leakage protection relay
    X35DB34DCX112

    Tripping current: 30 mA - 5,000 mA
    Trigger voltage: 230 V

    ... earth leakage relays, type B earth leakage relays are able to detect residual currents with both DC and AC components. This relay is used in conjunction with a trip protection device ...

    speed protection relay
    speed protection relay
    RS2001

    Tripping current: 0 A - 2 A

    ... The protective relay is designed to protect the on-load tap-changer and the transformer during a malfunction within the on-load tap-changer or the selector switch oil compartment. It trips when the specified oil flow ...

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