Protection Relays & Controls Arc-Flash Monitoring PGR-8800 SERIES (D1000) Arc-Flash Relay Description The PGR-8800 is a microprocessor-based relay that limits arc-fault damage by detecting the light from an arc flash and rapidly tripping. 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 adjustable trip level reduce the chance of nuisance tripping by setting a threshold for ambient light. 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. Optical Sensors Simplified Circuit Diagram The PGR-8800 accepts both PGA-LS10 and PGA-LS20/PGALS25/PGA-LS30 optical sensors, designed to collect light over a wide angle and with high sensitivity. For fast fault location, front-panel and sensor LED's indicate sensor health and which sensor detected an arc fault. 5-A-SECONDARY PHASE CT's (Recommended) D A B C Sensor Placement PGA-LS10 (Point Sensor) PGR-8800 (Arc-Flash Protection Relay) L1 L2 A PGA-LS20/ B PGA-LS25/ PGA-LS30 (Fiber-Optic Sensor) Trip PGA-1100 C (Diode Logic Unit) (Optional) 24 Vdc Battery Backup (Optional) For detailed wiring diagram, see adjacent page. Ordering Information ORDERING NUMBER COMMUNICATIONS PGR-8800-00 (UL, CE, C-tick) Multi-unit linking, Modbus(R) RTU ACCESSORIES REQUIREMENT PGA-LS10 (A1000) Required* PGA-LS20 (A2000)/ PGA-LS25 (A2000.0020) PGA-LS30 (A2000.0030) Required* PGA-1100 (D1100) Optional Current Transformer Optional The PGR-8800 Arc-Flash Relay and sensors are easily installed in retrofit projects and new switchgear with little or no re-configuration. Even elaborate systems with multiple power sources take minutes to configure using the relay's built-in USB interface software. Generally, it is recommended to mount 1 or 2 sensors per cubicle to cover all horizontal and vertical bus bars, breaker compartments, drawers, and anywhere that there is potential 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. At least one sensor should have visibility of an arc fault if a person blocks the other sensor(s). Local Circuit Br eaker DD D *At least one sensor is required. However, the exact number of sensors for proper coverage depends on the application. (c) 2014 Littelfuse Protection Relays & Controls Littelfuse.com/ArcFlash Rev: 4-G-032714 Based on Manual Rev 3-A-112913 Protection Relays & Controls Arc-Flash Monitoring PGR-8800 SERIES (D1000) Arc-Flash Relay Features & Benefits FEATURES Arc-Flash trip time <1 ms Multiple sensors (up to 24) Fail-safe system Redundant trip circuit Adjustable light sensitivity LED indication (on unit and each sensor) Current detection Optical detection Digital inputs (6) Service mode Trip coil contact Indication contacts USB interface Built-in sensor BENEFITS Limits arc-flash damage and risk of injury Single module can monitor 6 sensors. Up to 4 PGR-8800 units can be linked into one system Continuous monitoring of optical sensors and inputs ensures protection Solid-state backup arc-detection circuit adds a second layer of safety Allows for operation in bright environments and maximum sensitivity in dark environments 18 LEDs provide at-a glance status for module and I/O state Phase-CT inputs provide overcurrent protection and prevent nuisance trips Point and fiber-optic sensors provide wide detection area with sensor health trip indication Two each: remote trip, inhibit, and reset inputs Allows for system test without tripping Solid-state 24-300 Vdc/24-300 Vac IGBT Form C and status outputs Data logging and configuration software uses a USB interface with no drivers or software installation Can be used in single-sensor systems, as a seventh sensor, and for calibration 100-240 Vac, 14-48 Vdc, or 110-250 Vdc supply accepted. Ability to charge and run off an external, user-supplied 24 Vdc battery. On-board event recorder helps with system diagnostics Remotely view measured values, event records & reset trips Ability to trip upstream device if the local breaker fails to clear the fault Universal power supply/Battery backup Data logging Modbus Upstream Tripping ARC-FLASH RELAY PGR-8800 Wiring Diagram ARC-FLASH RELAY PGR-8800 (optional) ARC-FLASH RELAY PGR-8800 (optional) DIODE LOGIC UNIT PGA-1100 (optional) (optional) 38 39 ............. 45 - 37 + 31 ..................... 36 LINK CONTROL POWER and BATTERY 46 47 48 49 50 51 52 STATUS 53 54 55 56 STATUS 57 59 60 STATUS DIGITAL INPUTS ONLINE SERVICE TRIPPED TRIP COIL ARC-FLASH RELAY PGR-8800 SERIES 1 ........ 4 5 ........ 8 9 ........ 12 13 16 ........ 17 20 ........ 21 24 ........ PGA-LS10 PGA-LS20 PGA-LS25 PGA-LS10 PGA-LS20 PGA-LS25 PGA-LS10 PGA-LS20 PGA-LS25 PGA-LS10 PGA-LS20 PGA-LS25 PGA-LS10 PGA-LS20 PGA-LS25 PGA-LS10 PGA-LS20 PGA-LS25 PGA-LS30 PGA-LS30 PGA-LS30 PGA-LS30 PGA-LS30 PGA-LS30 OPTICAL SENSOR OPTICAL SENSOR OPTICAL SENSOR OPTICAL SENSOR OPTICAL SENSOR OPTICAL SENSOR or or or or or or Accessories A B C D 25 26 27 28 PHASE CT PHASE CT (recommended) (recommended) 29 30 PHASE CT (recommended) Specifications IEEE Device Numbers Overcurrent (50), Arc Flash (AFD) Input Voltage 100-240 Vac, 14-48 Vdc, and 110-250 Vdc Dimensions H 130 mm (5.2"); W 200 mm (7.9"); D 54 mm (2.2") Optical Trip Settings 9-25 klux, 800 s-20 s PGA-LS20 (A2000)/PGA-LS25 (A2000.0020)/PGACurrent Trip Setting (A) Programmable LS30(A2000.0030) Fiber-Optic Sensor Indication Contact Mode Fail-safe 360 light sensor for tricky installations with many shadows Trip Coil Voltage(1) 24-300 Vdc, 24-300 Vac or to run along bus bars. Sensor health and trip indication. Trip Coil Contact Mode Selectable fail-safe or non-fail-safe Dimensions: See PGR-8800 Manual Redundant Trip Circuit Standard feature Input Monitoring Standard feature PGA-1100 (D1100) Diode Logic Unit USB Interface Standard feature This module allows multiple PGR-8800 relays to trip the same breaker, for example an upstream or a tie-breaker. Trip, Reset, Dimensions: H 80mm (3.15") W 20mm(.79") D 70mm(2.76") Service Buttons Standard feature Expandable System Link up to 4 PGR-8800 units Current Transformers Warranty 5 years Eliminate nuisance arc-flash trips and use for Mounting DIN (with D0050 adapter clips), Surface overcurrent protection. PGA-LS10 (A1000) Point Sensor Line-of-sight light sensor detects an arc as small as 3 kA within a 2-m half-sphere. Sensor health and trip indication. Dimensions: See PGR-8800 Manual NOTE (1) - Contact Littelfuse for trip coil voltages higher than 300 Vdc/Vac. Littelfuse reserves the right to make product changes, without notice. Material in this document is as accurate as known at the time of publication. Visit Littelfuse.com for the most up-to-date information. (c) 2014 Littelfuse Protection Relays & Controls Littelfuse.com/ArcFlash Rev: 4-F-012214 Based on Manual Rev 3-A-112913