AUMSHIVAY ENGINEERING PRIVATE LIMITED
B-21, Bhan Nagar, Queens Road, Jaipur-302021
Website: www.aumshivay.com, www.omengineering.in
E-mail:[email protected]
PAGE. 16
REG. OFFICE:VILLA NO. 60,LATA NAGAR, KALWAR ROAD, JHOTWARA, JAIPUR - 302012
TM
TM
VOLTAGE & FREQUENCY
RELAY
Voltage & Frequency Relay (MC3V);
These are three-phase voltage relay, suitable for protection of HV, MV, LV
power transmission and distribution systems. The relay MC3V measures the true R.M.S. value of the 3 phase to neutral voltages
fed to three transformers isolated high-impedance inputs.
VOLTAGE & FREQUENCY RELAY (MC3V);
Item
VOLTAGE & FREQUENCY RELAY
Make
L&T
Model
MC3V
Real Time Measurements
f - EA - EB - EC - Vo - V1 - V2
Programmable Input
Quantities
Fn
= System frequency : (50 - 60)Hz
V1
= Rated primary phase to phase voltage of system's Pt :
(0.05 - 500)kV, step 0.01kV.
V2
= Rated secondary phase to phase voltage of system's Pts :
(50 - 400)V, step 0.01V.
F59 (V>) : First
OverVoltage Element
Function enabling :
= Enable - Disable
Setting range :
V> = (0.5 - 1.50)Vn, step 0.01Vn
Instantaneous output :
£ 0.03s
Trip time delay :
tV> = (0.05 - 60)s, step 0.01s
F59 (V>>) : Second
OverVoltage Element
Function enabling
: = Enable - Disable
Setting range :
V>> = (0.5 - 1.50)Vn, step 0.01Vn
Instantaneous output :
£ 0.03s
Trip time delay :
tV>>= (0.05 - 60)s, step 0.01s
F27 (V<) : First
UnderVoltage Element
Function enabling :
= Enable - Disable
Setting range :
V< = (0.2 - 1.20)Vn, step 0.01Vn
Instantaneous output :
£ 0.03s
Trip time delay :
tV< = (0.05 - 60)s, step 0.01s
F27 (V<) : Second Under
Voltage Element
Function enabling :
= Enable - Disable
Setting range :
V<< = (0.2 - 1.20)Vn, step 0.01Vn
Instantaneous output :
£ 0.03s
Trip time delay :
tV<< = (0.05 - 60)s, step 0.01s
81> (f>): Maximum
Frequency Element
Function enabling :
= Enable - Disable
Setting range :
f> = (40 - 70)Hz, step 0.01Hz
Instantaneous output :
= £ 0.03s
Trip time delay :
tf> = (0.05 - 60)s, step 0.01s
81< (f<): Minimum
Frequency Element
Function enabling :
= Enable - Disable
Setting range :
f< = (40 - 70)Hz, step 0.01Hz
Instantaneous output :
= £ 0.03s
Trip time delay :
tf< = (0.05 - 60)s, step 0.01s
1-59o (Vo>): Zero
Sequence Voltage Control
Function enabling :
= Enable - Disable
Setting range :
Vo> = (0.1 - 2)Vn, step 0.01Vn
