GE 850 - Outputs

CHAPTER 1: INTRODUCTION SPECIFICATIONS
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–35
Outputs
ANALOG OUTPUTS
Range (configurable):........................................0 to 1mA, 0 to 5mA, 0 to 10mA, 0 to 20mA, 4 to 20mA
Max. load resistance:.........................................10 kΩ @ 1 mA,
600 Ω @ 20 mA
Accuracy:................................................................± 1% of full scale
Isolation:..................................................................500V DC for one minute (functional isolation between analog
inputs and output group; and each group of chassis)
Driving Signal:.......................................................any Analog quantity
Sampling Interval: ..............................................Typically 500 ms
Upper and lower limit
(for the driving signal):................................-90 to 90 pu in steps of 0.001
FORM A AND FORM C OUTPUT RELAYS, I/O CARDS A AND M
Maximum Working Voltage: ..........................300VDC/300VAC
Make and short-time carry current: ..........30A/0.2s per IEEE C37.90
Maximum Continuous Current per
contact: ..............................................................10A
Total maximum current for contacts
connected to common potential:..........10A
Breaking Capacity (DC inductive) with
respect to source voltage, @L/R = 40
ms (10000 Operation, per IEC 60255-1
2009-08):............................................................24 V-1 A
48 V-0.5 A
125 V-0.3 A
250 V-0.2 A
Breaking Capacity (DC resistive) with
respect to source voltage:.........................24 V-10 A
48 V-1.5A
125 V-0.4 A
250 V-0.3 A
Breaking Capacity (AC inductive) with
respect to source voltage, @PF= 0.35
or less:.................................................................A300, Pilot duty
720 VA
Breaking Capacity (AC resistive) with
respect to source voltage:.........................277V-10A
Operating Time (coil energization to
contact closure, resistive load):...............<8ms
Contact Material:.................................................Silver alloy
Mechanical Endurance (no load):................> 10,000
Maximum Frequency of operation:............360/h
Protection Device across contact: ..............EMI Suppression Cap, 1nF
FAST PATH:
For order codes with a combined total of 2 or 3 type A and M I/O cards, the following
ratings are applied to meet UL508 requirements: 1 second on / 10 seconds off, 9% duty
cycle.
FORM-A VOLTAGE MONITOR
Applicable voltage:.............................................20 to 250 VDC
Trickle current:......................................................1 to 2.5 mA
Timer acurracy:...................................................± 3% of operate time or ± 1/4 cycle (whichever is greater)