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Railway Battery Relay Guide

The document provides information on the ACD-U200 series of voltage monitoring relays from NIEAF-SMITT. It summarizes the key specifications including: - The relay monitors battery voltages and reacts to the mean voltage value even with ripple present. - It has adjustable pull-in and hysteresis voltages as well as pull-in time of less than 15ms and drop-out time of 20ms. - The relay is intended for plugging into standard D and D-U sockets and has a max switching capacity of 15A and contact life of 30 million operations. - Operating temperature range is -25°C to +70°C with IP40 protection.

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194 views3 pages

Railway Battery Relay Guide

The document provides information on the ACD-U200 series of voltage monitoring relays from NIEAF-SMITT. It summarizes the key specifications including: - The relay monitors battery voltages and reacts to the mean voltage value even with ripple present. - It has adjustable pull-in and hysteresis voltages as well as pull-in time of less than 15ms and drop-out time of 20ms. - The relay is intended for plugging into standard D and D-U sockets and has a max switching capacity of 15A and contact life of 30 million operations. - Operating temperature range is -25°C to +70°C with IP40 protection.

Uploaded by

bansalr
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Product Dimensions

VOLTAGE MONITORING RELAY ACD-U200 series


Battery voltage monitoring relay Country of Origin: The Netherlands

Company P.O. Box 7023 3502 KA Utrecht The Netherlands T +31 (0)30-288 13 11 F +31 (0)30-289 88 16 E sales@nieaf-smitt.nl I www.nieaf-smitt.nl/railway

Connection Diagram
8
9 5 7 3 4 1 2 13 14 11 12 10 6 8

1(+)

6 2 7 11 13

Description
Electronic plug-in railway monitoring relay for battery voltages. The relay reacts on the mean value of a DC-voltage with ripple. The pull-in voltage and hysteresis is adjustable by means of multiturn trimpotentiometers. The pull-in time after crossing the setpoint is < 15ms. The drop-out time is approximately 20 ms, which can be extended to 250 ms. (see below) Optional the relay can be supplied with fixed (sealed) set values, or led indication. The ACD relays are pluggable into standard D and D-U sockets.

Input data
Type ACD-U201 ACD-U202 ACD-U203 ACD-U204 ACD-U205 ACD-U207 U nom (V) 24 48 72 110 96 36 U max (V) 35 70 105 160 140 52 U pull-in (V) *) U hysteresis (V) Power consumption (W) 2133 18 < 0.55 4266 216 < 0.85 6399 324 < 1.15 90140 537 < 1.35 84132 432 < 1,30 3150 1,512 < 0.75 <15 ms 20 ms 250 ms 1% 0.1 %/K

*) Other pull-in voltage- or hysteresis ranges are possible on request.

Triptime pull-in Triptime drop-out Repeat accuracy Temperature coefficient

terminals 6/8 open terminals 6/8 closed

Working Principle

Adjustments

NIEAF-SMITT

330403101.TSP-01

16-02-2005

Contact data
Max. make current 15 A Material Ag+0.2m Au Max. cont. current 6 A ( AC1 ; IEC 60947 ) Contact gap 0.3 mm Max. switching voltage Insulation between 1 kV; 50 Hz; DC 300 V, 300 mA open contacts 1 min AC 250 V, 2.6 A Contact force > 20 cN Min. switching voltage 4V / 2mA / 0.1W-VA Note : contacts cannot have a different 15 m Max. contact resistance position. (Forced contacts, Weld-no-transfer) Maximum switching capacity and contact life: see graph
Max Switching Capacity
1000 100

Contact Life

% of max switching cap.

DC 2 contacts in serie

DC resistive

Watt

100

10

DC inductive

DC 1 contact

10 10 100 Volt 1000

1 0,10

1,00

10,00 No of ops (x10 6)

100,00

General Data
Dielectric strength Pole-Pole Cont-Coil Pulse withstanding EMC Vibration IEC 60255-5 IEC 60077 IEC 60255-5 IEC 60255-5 IEC 60077 IEC 60571-1 IEC 60068-2-6 IEC 60068-2-27 3,5 kV, 50 Hz 4 kV, 50 Hz 5 kV ( 1.2/50 s ) 2.5 kV, 1 MHz, 400 Hz, 10 s 5 g at 50 Hz 2 g, 10-150 Hz 15 g, 11 ms 30*106 ops 1200 ops/h 120 g + 70 C - 25 C 80 %, temporary permitted condensation IP 40 Polyester Makrolon

Shock Mechanical life Max. switching frequency Weight Temperature Humidity Protection Materials

Tamb,max Tamb,min

NIEAF-SMITT

330403101.TSP-02

16-02-2005

Australian Distributor

Relay Monitoring Systems Pty Ltd 6 Anzed Court Mulgrave, Victoria, 3170, Australia Phone: +61 3 8544 1200 Fax: +61 3 8544 1201 Email: rms@rmspl.com.au Web: www.rmspl.com.au

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