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LUMEL

LUMEL

3-Phase Synchronisation Meter, KS5

  • Automatic switching of 3-phase generators
  • 50>150V or 150>400V input signals
  • TCP/IP, DHCP client and RS485 MODBUS

Product description

  • Clear data visualization thanks to color graphic display 3.5’’ TFT (separately for the synchroscope,
  • differential voltmeter, frequency meter);
  • Range of input signals: 50...150 V or 150...400 V;
  • Direct or indirect measurement through voltage transformers;
  • Additional control inputs: BLK - lock synchronization, START - start synchronization
  • Programmable hysteresis of voltage difference, frequency, and phase shift angle
  • Ethernet interface 10/100 BASE-T for connecting the synchronization meter to the local area network (LAN) or the global one (WAN);
  • Network services: web server, Modbus TCP / IP, DHCP server;
  • RS-485 interface with Modbus RTU protocol;
  • Password protection for two accounts of Web Server user,
  • Measurement of the minimum and maximum values of voltage and frequency
  • External dimensions:  96 x 96 x 77mm.

 

 

Technical data

Measuring range

Measured value

Measuring range

Resolution

Class/basic error

Voltage Un: 50…150 V~

20….180 V 

0.1 V

0.2 (EN 61557-12)

150…400 V~

60…480 V 

0.1 V

 

…1920 kV (tr_U≠1)

0.01 kV

Voltage difference dU

-20…0…20 %

0.10%

0.5 (EN 61557-12)

Frequency f

45 …65 Hz

0.001 Hz

0.02 (EN 61557-12)

Frequency difference df

-10…0…10 %

0.01%

0.02 (EN 61557-12)

Phase shift j

0…360o

0.1o

±0.5o

tr_U-ratio of voltage transformer
= transformer primary voltage/transformer secondary voltage

 

 

 

 

Inputs

Input type

Properties

Control inputs (BLK, START )

2 voltage input  20..250 V d.c./a.c.
Power consumption per input
£0.25 W  

 

Outputs

Output type

Properties

Relay outputs (AL, SYNC)

2 programmable relays, NO contacts, resistance load 0.5 A/250 V a.c.
or 5 A/30 V d.c.;
activation time of the relay - max. 8 ms;

number of switching: mechanical - miniumum 5 x106,
electrical - minimum 1 x 10
5 

 

Digital interface

Interface type

Transmission protocol

Remarks

RS-485

Modbus RTU 8N2, 8E1, 8O1, 8N1 Address 1..247 

baud rate: 4.8, 9.6, 19.2, 38.4, 57.6, 115.2 kbit/s

Ethernet 10/100 Base-T 

Modbus TCP/IP, DHCP client

RJ45 socket, WWW server

 

 

External features

Readout field

graphic color display LCD TFT 3,5’’ , 320 x 240 pixels

Overall dimensions

96 x 96 x 77 mm

mounting hole 92.5 x 92.5  mm

Weight

0.3 kg 

 

Protection grade

from frontal side: IP65

from terminal side: IP20

 

 

Rated operating conditions

Supply voltage

           85..253 V a.c. (40..50..400) Hz or 90..300 V d.c.
or 20..40 V a.c. (40..50..400) Hz or 20..60 V d.c

Power consumption

in supplying circuit ≤ 6 VA

in voltage circuit ≤ 0.5 VA

Input signal

0.2..0.4..1.2 Un 

frequency 45...50...60...65 Hz,  sinusoidal (THD ≤ 8%)

Phase shift

0 .. 360o for frequency fn ± 5 Hz (for fn = 50 or 60 Hz) 

Preheating time

15 min.

 

Ambient temperature

-10…23…55°C, class K55 acc. to EN 61557-12

Humidity

0...40...65…95%

without condensation

Operating position

any

External magnetic field

≤ 40…400 A/m d.c.

≤ 3 A/m a.c. 50/60 Hz

Short-term overload

voltage input: 2 Un (5 sek.)

Admissible crest factor

current: 2

 

Safety and compability requirements

Electromagnetic compatibility

noise immunity

acc. to EN 61000-6-2

noise emissions

acc. to EN 61000-6-4

Isolation insured by the casing

double

acc. to EN 61010-1

Isolation between circuits

basic

acc. to EN 61010-1

Polution level

2

acc. to EN 61010-1

Installation category

III for phase-to-earth voltages up to 300 V

acc. to EN 61010-1

Maximal phase-to-earth voltage

for supplying circuits and relay outputs 300 V
for measuring inputs 300 V
for circuits RS-485, Ethernet: 50 V

acc. to EN 61010-1

Altitude a.s.l.

< 2000 m

 

Meter connection diagrams

 

Examples of data presentation

 

Order numbers

 

Part

KS512200E0
3-PH SYNC UNIT, 50-150V, RS485 + ETH

Resource

Contact us

If you need any help, you can contact us in one of the following ways:

0116 284 9900

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