background image

Visit

www.rmspl.com.au

  for the latest product information.

Due to RMS continuous product improvement policy this information is subject to change without notice. 1S25/Issue F/07/03/2011 - 6/9

AUXILIARY SUPPLY

A high efficiency switchmode power supply is incorporated which

provides a low burden to the auxiliary supply.

Low range model:

20-70V DC

High range model:

40-300V DC & 40-275V AC

AUXILIARY SUPPLY BURDEN

(At 110V DC)

Quiescent:

Less than 4W

Maximum:

Less than 10W

OPERATING TIME OF ARC FAULT DETECTION

Arc  fault  trip  contacts  guaranteed  to  pick  up  in  less  than  10ms

including bounce. Typical operate time is 7ms.

Reset time of the arc fault element is 2s.

CRO trace showing nominal operation time of the trip contacts at

7ms. First contact touch at 6.25ms and fully closed by 7.25ms.

Operation in <10ms is considered acceptable as current check

relay operate time is ~15ms.

FRONT PANEL LED’s

Green system healthy LED

Arc Trip - One red LED per zone – off, flashing or on solid

Sensor Alarm – One red LED per zone – off, flashing or solid

ARC FAULT BLOCK STATUS INPUT DELAY

AC Rejection Filter

Initiate input

Minimum

ON

OFF

P/U

<16ms

<4ms

DC

D/O

<4ms

<16ms

P/U

<23ms

AC

D/O

N/A

<33ms

Table 1

STATUS INPUT OPERATING VOLTAGE

An internal configuration switch is provided to select status input

operation for DC only or AC/DC. This setting may be pre defined

when ordering.
18 - 300V DC

Set Configuration Switch to

ON

In this mode the universal status input will reject AC signals that

may  be  induced on the control wiring. Suitable for high security

applications where a DC battery supply is available.
18 - 300V DC & 18 – 275V AC   Set Configuration Switch to

OFF

In this mode the universal status input is designed to operate on

both AC & DC input voltages. Suitable for applications where an

AC auxiliary voltage is available such as transformer or generator

control panels.

STATUS INPUT MINIMUM OPERATING CURRENT

10mA P/U for 1ms then reducing to1.5mA after 4ms.

RESET

Press the front reset button or pulse the reset status input.

Technical Data

OUTPUT CONTACTS

Tripping contacts:

8 - 2 N/O per tripping zone

Common tripping contact: 1 N/O

Fail alarm:

1 C/O contact for the power supply /

CPU fail / arc fault sensor.

Normally picked up & drops out to

signal an alarm condition.

OUTPUT CONTACT RATINGS

IEC60255-0-2

Carry continuously

5A AC or DC

0.5s 20A AC or DC

Make & carry

L/R ≤ 40ms & V ≤ 300V

0.2s 30A AC or DC

AC resistive

AC inductive

1,250VA

250VA @ PF ≤ 0.4

DC resistive

75W

Break capacity

I ≤ 5A & V ≤ 300V

30W @ L/R ≤ 40ms

DC inductive

50W @ L/R ≤ 10ms

Minimum number of operations

10

6

 at maximum load

Minimum recommended load

0.5W limit 10mA / 5V

TRANSIENT OVERVOLTAGE

IEC60255-5

Between all terminals & earth

5kV 1.2/50us 0.5J

Between circuit groups:

Status/Reset Inputs, Auxiliary Supply,

Sensor Inputs, Trip Outputs

Without damage or flashover

5kV 1.2/50us 0.5J

INSULATION COORDINATION

IEC60255-5

Between all terminals & earth

2.0kV RMS for 1 minute

Between circuit groups:

Status/Reset Inputs, Auxiliary Supply,

Sensor Inputs, Trip Outputs

2.0kV RMS for 1 minute

Across normally open contacts

1.0kV RMS for 1 minute

AUXILIARY SUPPLY

IEC60255-11

Allowable breaks / dips in supply

Collapse to zero from nominal voltage

≤ 20ms

HIGH FREQUENCY DISTURBANCE IEC60255-22-1 CLASS III

2.5kV 1MHz common mode

1.0kV 1MHz differential mode

No mal operation

ELECTROSTATIC DISCHARGE

IEC60255-22-2 CLASS III

6kV contact discharge

No mal operation

RADIO FREQUENCY INTERFERENCE

  IEC60255-22-3

10V/m, 80 TO 2,700MHz

No mal operation

FAST TRANSIENT

  IEC60255-22-4

4kV, 5/50ns, 100KHz repetitive

No mal operation

CONDUCTED RFI

  IEC60255-22-6

10V, 0.15 to 80MHz

No mal operation

CUSTOM ALARM TEXT

- Refer ordering information page.

Maximum characters:

2 lines x 15 characters / tripping zone.

Maximum font size:

1 line   x 10 characters / tripping zone.

TEMPERATURE RANGE

IEC68-2-1/2

Operating:

-5 to +55

o

C

Storage:

-25 to +75

o

C

HUMIDITY

IEC68-2-78

40

 o

C & 95% RH non condensing

Summary of Contents for 1S25 Series

Page 1: ...oyed poisonous gases are emitted A 1s arc destroys most of the switchgear may cause a fire injury to personnel damage to property Technical Bulletin 1S25 Arc Fault Monitor 4 Zones 8 Sensors 1S25 depicted in a 2M28 S draw out case with custom alarm text engraving ARC Fault Protection Made in Australia Arc fault protection is a relatively new technique employed for the fast clearance of arcing fault...

Page 2: ...n independent output contact associated with the start current setting of the relay That is an output contact that will close when a phase or earth fault current is detected above the threshold which starts the internal relay timers This starter element should be set for instantaneous operation so that it will pick up in the order of 15ms An Arc Fault Monitor relay 1S25 is installed on the switchg...

Page 3: ...ROTECTION Figure 5 depicts how the 1S25 may also be applied for the protection of bus bars The number of sensors in the bus chamber is dictated by the switchgear design and the length of switchboard In most indoor metal clad switchgear the bus bar chamber is a continuous chamber between panels only broken into segregated sections at a bus section breaker as such the strategic placement of one or t...

Page 4: ... switchgear Over current check stage depicted Low Voltage Applications LOW VOLTAGE ARC PROTECTION Figures 6 7 depict how the 1S25 may also be applied for low voltage panels MCC switchgear Figure 6 depicts an arrangement where over current check stage is employed while the protection application depicted in figure 7 is a system based solely on arc detection 1S25 HEALTH Y ZONE 2 ZONE 3 ZONE 4 ZONE 1...

Page 5: ...pping scheme usually results in reduced system security The arc detection method can however combine the 1S25 optical detection technique with a traditional overcurrent method to maximize system security particularly for BUS bar protection schemes Both conditions must coexist for the trip condition to be met as depicted in figure 8 ARC FAULT TRIP INITIATE CB ARC FAULT MONITOR SENSOR OVER CURRENT R...

Page 6: ... panels STATUS INPUT MINIMUM OPERATING CURRENT 10mA P U for 1ms then reducing to1 5mA after 4ms RESET Press the front reset button or pulse the reset status input Technical Data OUTPUT CONTACTS Tripping contacts 8 2 N O per tripping zone Common tripping contact 1 N O Fail alarm 1 C O contact for the power supply CPU fail arc fault sensor Normally picked up drops out to signal an alarm condition OU...

Page 7: ...nput Configuration switches Primary PCB 7 9 11 13 15 17 19 21 Zone 1 Arc sensor input 1S30 Arc Fault Sensors Zone 2 Arc sensor input Zone 3 Arc sensor input Zone 4 Arc sensor input 6 8 Zone 1 Trip Zone 1 Trip Zone 2 Trip Zone 2 Trip 4 Common Trip Switch 1 Switch 2 Switch 3 Switch 4 BANK A BANK B BANK C 27 25 23 Fail Healthy Alarm common Signal processing and logic functions ON ON ON Arc sensor fau...

Page 8: ...aw out case ACCESSORIES SUPPLIED WITH EACH RELAY 1 x M4 self threading mounting screw kit P N 290 406 151 2 x M4 terminal screw kit 28 per kit P N 290 407 153 1 x Product Test Manual 1S30 ARC FAULT SENSORS Refer to the 1S30 Technical Bulletin for details Figure 11 1S30 Arc Fault Sensors Through panel mounting detector version depicted at left Front panel view of dual detector version depicted at r...

Page 9: ...e 1S25 product ordering code For maximum font size limit text for each alarm point to 1 line x 10 characters Text will be left justified Zone 1 Zone 2 Zone 3 Zone 4 Ordering Information ORDER CODE The order code determines the production build in the factory cannot be changed in the field Generate the required order code as follows e g 1S25 BA Order Code General Type 1 2 1S25 1 AUXILIARY SUPPLY RA...

Page 10: ...supplied in secure individual packing cardboard boxes with moulded styrene inserts suitable for recycling Each product packing box is labeled with the product part number customer name order details Design References The products components produced by RMS are based on many years of field experience since Relays Pty Ltd was formed in 1955 A large population of equipment is in service throughout Au...

Reviews: