Numerical Self Powered Protection Relay For RMU :ADR141S
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Technical characteristics
- BrandSelf
Description
The ADR141S is self powered relay, Non-communicable 3 OC and 1 EF with Instantaneous high set specially designed for Protection of Ring Main Unit or compact sub-station where no any external power supply is not available.
ANSI | Protection Functions |
50 | Instantaneous Over current Protection (OC-Inst.) |
50N | Instantaneous Earth Fault Protection (EF-Inst.) |
51 | Time Over current Protection (Phase) (OC-IDMT.) |
51N | Time Over current Protection (Earth) (EF-IDMT.) |
Specifications : | |
Auxiliary Voltage supply is not required. | |
Low energy pulse output tripping for RMU. | |
4 Element (3 Phase + EF) over current IDMT with instant trip. | |
Display of fault current. / Load current. | |
Selection of Curve: Six selectable curves (Normal Inverse1 (C1), Normal Inverse2 (C2), Very Inverse (C3), Extremely Inverse (C4), Long Time Inverse (C5) & Definite Time (C6). | |
Separate curve selection for phase and EF. | |
Latching of fault current up-to last 5 fault. | |
Programmable Annunciation Contact |
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Numerical Self Powered Protection Relay For RMU :ADR141S
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