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SEL-351A Distribution Protection

SEL-351A Distribution Protection
Mã Sản phẩm : SEL-351A
Chuyên mục : Rờ Le Bảo Vệ (Safety Relay)
Nhà sản xuất : Sel
Hàng sẵn kho : 2  cái
Mô tả:
Improve Feeder Protection, Monitoring and Control and Reduce Costs
Thông số chi tiết :

Major Features and Benefits

The SEL-351A Relay provides an exceptional package of protection, monitoring, control, and fault locating

features.

➤

angles, improve event analysis, and provide state measurements.

Synchrophasors. Improve operator awareness of system conditions. Use real-time data to view load

➤

protect lines and equipment (make elements directional for looped systems). Ordering options

for non-directional sensitive earth fault (SEF) protection and directional protection for ungrounded,

high-impedance grounded, Petersen Coil grounded, and low-impedance grounded systems. Implement

load shedding and other control schemes with under-/overfrequency and under-/overvoltage elements.

Protection Features. Phase, negative-sequence, residual-ground, and neutral-ground overcurrent elements

➤

functions, and selectively reclose with synchronism and voltage checks.

Programmable Auto-Reclosing. Programmable four-shot recloser. Implement remote and local control

➤

costs for relay settings and logic programming. Graphical tools in the

Set make it easy to develop SEL

Relay and Logic Settings Software. ACSELERATOR® QuickSet™ SEL-5030 Software reduces engineeringACSELERATOR Quick-OGIC® control equations.

➤

expensive, separately mounted metering devices. Improve maintenance scheduling using circuit

breaker contact wear and substation battery voltage monitors. Analyze Sequential Events Recorder

(SER) reports and oscillographic event reports for rapid commissioning, testing, and post-fault diagnostics.

Metering, Monitoring, and Fault Locator. Built-in, high-accuracy metering functions eliminate

➤

display messages via SEL

station-wide collection of binary SER messages.

Control Logic and Integration. Program remote, local, and latch control switches, as well as frontpanelOGIC control equations (16 of each). Unsolicited SER protocol allows

➤

transformers and either synchronism-check or broken-delta (zero-sequence) voltage connection to the relay.

Wye or Delta Voltage Inputs. Settings allow either wye-connected or open-delta-connected voltage
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