Specifications; Device; Protection - GE 845 Instruction Manual

Transformer protection system
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SPECIFICATIONS

Advanced Communications Connector
Wireless Communication
Security
Future Option
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Specifications

Device

Protection

1–10
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.
Accessories
18J0-0030 8 Series Depth Reducing Collar - 1 3/8"
18J0-0029 8 Series Depth Reducing Collar - 3"
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.
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
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,
Operate Time: ...................................................... 4 ms at >6 x Pickup at 60 Hz
N
|
|
|
None
S
|
|
|
ST, Multi-mode 1310 nm
C
|
|
|
RJ45, Copper 10/100M
N
|
|
None
W |
|
WiFi 802.11
B
|
Basic
A
|
Advanced: CyberSentry Level 1
N
Not Available
whichever is greater
For > 0.2 x CT: ± 1.5% of reading
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
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION
892800C5.PDF

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