GE 845 User Manual

1–10 845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
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Harsh Environment Coating is a standard feature on all 8 Series units.
Advanced security is only available with advanced communications (1E, 1P, 2A, 2E, 3A, 3E).
When the advanced communications option is selected, the Ethernet port on the main CPU
is disabled.
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Accessories
• 18J0-0030 8 Series Depth Reducing Collar - 1 3/8"
• 18J0-0029 8 Series Depth Reducing Collar - 3"
Specifications
To obtain the total operating time, i.e. from the presence of a trip condition to initiation of a
trip, add 8
ms output relay time to the operate times listed below.
Device
ANNUNCIATOR PANEL
Number of Elements: ........................................1 (36 indicators)
Layout:.....................................................................Grid of 2x2 or 3x3
Data Storage:........................................................Non-volatile memory
Mode:........................................................................ Self-reset, latched, acknowledgeable
Display Text:..........................................................3 lines of 15 characters maximum
Visual Indication: ................................................Flashing: 2Hz @ 50% duty cycle
CUSTOM CONFIGURATIONS
Config Mode: ........................................................Simplified, Regular
Protection
ARC FLASH HS PHASE/GROUND INSTANTANEOUS OVERCURRENT HS 50P/50G
Current:.................................................................... Phasor Magnitude (special high speed algorithm)
Pickup Level: .........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level:......................................................97 to 98% of Pickup
Level Accuracy: ...................................................For 0.1 to 0.2 x CT: ± 0.2% of reading or 1.5% of rated,
whichever is greater
For > 0.2 x CT: ± 1.5% of reading
Operate Time: ......................................................4 ms at >6 x Pickup at 60 Hz
5 ms at >6 x Pickup at 50 Hz
4-8 ms at > (3-6) x Pickup at 60 Hz
4-10 ms at > (3-6) x Pickup at 50 Hz
892800C5.PDF
Advanced Communications Connector N | | | None
S | | | ST, Multi-mode 1310 nm
C | | | RJ45, Copper 10/100M
Wireless Communication N | | None
W| | WiFi 802.11
Security B | Basic
A | Advanced: CyberSentry Level 1
Future Option N Not Available

GE 845 Specifications

General

Brand	GE
Model	845
Category	Protection Device
Language	English