Elko HRF-10 Manual

ELKO EP, s.r.o.
Palackého 493
769 01 Holešov, Všetuly
Czech Republic
Tel.: +420 573 514 211
e-mail: elko@elkoep.com
www.elkoep.com
Made in Czech Republic
02-15/2017 Rev.: 0

Characteristics

• the relay serves to monitor frequency of AC voltage, e.g. in photovoltaic power
stations, generators
• the monitored frequency 50 / 60 / 400 Hz is selected by a switch
• supplied from monitored voltage
• two adjustable levels of frequency (Fmin, Fmax) in the range of 80 - 120 % Fn
• adjustable diff erence level
• adjustable delay level
• switchable ranges of rated frequency Fn
• 3-MODULE design, DIN rail mounting

Description

1
2
3
4
cos φ ≥ 0.95
Type of load
AC1
Mat. contacts AgNi,
contact 8A
250V / 8A
Type of load
AC13
Mat. contacts AgNi,
contact 8A
x
5
1. Supply voltage indication
2. Indication F > Fmax
3. Indication F < Fmin
6
4. Output contact
5. Supply / monitored voltage terminals
7
6. Delay setting
8
9
7. Diff erence setting
10
8. Fmax setting
9. Fn setting
10. Fmin setting
M M
AC2 AC3
250V / 3A 250V / 2A 230V/1.5A (345VA)
K
AC14 AC15
250V / 3A 250V / 3A
HRF-10
Frequency monitoring relay

Connection

AC5a
AC5a
uncompensated compensated
x
M
DC1 DC3
24V / 8A 24V / 3A
1 / 2
L
N
N L
16 15 18 28 25 26
HAL.230V
AC5b AC6a
300W x 250V / 1A
M
DC5 DC12
24V / 2A 24V / 8A
EN
AC7b AC12
250V / 1A
DC13 DC14
24V / 2A x