SIEMENS phase protection relays

1 company | 6 products
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over-current protection relay / earth-leakage / phase / digital
over-current protection relay
7SR45

... Reyrolle 7SR45 numeric relay provides both definite time and inverse time overcurrent and earth fault protection functions ensuring sensitivity with a minimum operate setting of 0.2 ⋅ ...

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Siemens Energy automation and smart grid
overload relay / earth-leakage / phase sequence / over-current
overload relay
7SR10, 7SR11, 7SR12, 7SR21 , 7SR22 series

... ,7SR21 and 7SR22 Argus overcurrent protection devices have been specifically designed to provide feeder protection for distribution and industrial networks. Features The Reyrolle ...

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Siemens Energy automation and smart grid
over-voltage protection relay / earth-leakage / overload / phase sequence
over-voltage protection relay
7SR242

... and reactor protection schemes. Relays are housed in size E8 or E10 cases. Integrated logic is provided to allow the optimal configuration of relay functionality with the relays ...

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Siemens Energy automation and smart grid
earth-leakage protection relay / phase / current / digital
earth-leakage protection relay
7SR23

... circulating current relay that has four current inputs, it is used as a unit protection to detect phase and earth faults. Features The relay can be applied to busbars, ...

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Siemens Energy automation and smart grid
frequency protection relay / voltage / phase sequence / digital
frequency protection relay
7SR158

Trigger voltage: 64 V - 300 V

... secondary line and phase voltages •Historical demand record •Positive phase sequence (PPS) voltage •Negative phase sequence (NPS) voltage •Zero phase sequence (ZPS) ...

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Siemens Energy automation and smart grid
differential protection relay / voltage / overload / phase comparison
differential protection relay
7SD80

The line differential protection SIPROTEC 7SD80 has been conceived for selective line protection of power cables and overhead lines up to 24km for all kind of starpoint configurations. The implemented ...

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Siemens Energy automation and smart grid