Datasheet > PGR-8800-00

PGR-8800-00

更新时间： 2024-11-06 14:56:11

品牌	Logo	应用领域
力特 - LITTELFUSE		继电器
页数	文件大小	规格书
5页	481K
描述
PGR-8800-00是一款弧闪继电器，交流供电电压为120-240，直流供电电压为12-48，120-240。

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PGR-8800-00 数据手册

Arc-Flash Detection Relays

PGR-8800 Series

Arc-Flash Monitoring Relay

Description

The PGR-8800 series arc-flash relay is a microprocessor-based protection relay that limits arc-flash damage by using

light sensors to rapidly detect an arc and then trip a circuit breaker. Phase-current-transformer inputs are provided for

current-constrained, arc-flash protection and, when so equipped, a programmable definite-time overcurrent function can

be enabled. An optical sensor on the PGR-8800 and an adjustable trip-level reduce the chance of nuisance tripping by

setting a threshold for ambient light. The PGR-8800 accepts PGA-LS10 point sensors and PGA-LS20/PGA-LS30

fiber-optic sensors, which are designed to collect light over a wide angle and with high sensitivity. Sensors, inputs, and

connections are monitored to ensure fail-safe operation. A secondary solid-state trip circuit provides a redundant trip path.

A USB port is used for configuration and access to event logs and graphs. For fast fault location, front-panel and sensor

LEDs indicate sensor health and which sensor(s) detected an arc fault. A maximum of four PGR-8800 units can be linked

into one system.

Sensor Placement

The PGR-8800 arc-flash relay and sensors are easily installed in retrofit projects and new switchgear with little or no

re-configuration. More complex systems with multiple power sources are configured using the relay’s built-in USB

interface software. Generally, it is recommended to mount one or two sensors per cubicle to cover all horizontal and

vertical bus bars, breaker compartments, drawers, and anywhere that there is a risk for an arc fault. Threading a fiber-optic

sensor through the cabinets and in areas where point-sensor coverage is uncertain results in complete coverage and an

added level of redundancy. Even if policy is to only work on de-energized systems, all maintenance areas should be

monitored to prevent potential damage and additional cost.

Littelfuse.com/PGR-8800

Speciﬁcations are subject to change without notice.

Revised: 06/05/2023

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