Ratings And Specifications - Mitsubishi Electric MELPRO-A Series Instruction Manual

MGR-A3 Series Earth Fault Overcurrent Relay [Standard: JIS C 4601 (1993)]
Features
1. Wide setting range enables flexible protection
coordination.
2. Reset method of output contacts can be
switchable between auto-reset and self-hold
(MGR-A3V-R type only).
3. The fault value record function is installed.

Ratings and Specifications

Type name
Style No.
Tripping method
Zero-sequence current
Ratings Frequency
Auxiliary power supply
I Operation value
0
Operating time
Settings
Using
condition
Self-monitoring
Operation indicator
Display
Numerical display
Test button
(Forced operation)
Power consumption (Power supply)
Case
(Munsell color)
Mass
(*) shows factory setting.
Note) It is necessary to combine MZT type ZCT with MGR-A3V relay.
Don't combine other transformers with this relay.
Voltage tripping
Frequency
Output Self-hold(SW2-ON) –
contact
The "RUN" indicator (green-color) is lighted in normal condition.
The indicator turns from black into orange color when the protection element is
put into operation. (Manual resetting type)
TEST (Forced operation)
※1 "Lo." means LOCK setting (the protection element is locked).
※2 "In." is the display for instantaneous setting.
By turning the indicator select switch to "TEST" and pushing "TEST" button for
2 seconds or more, output contact can be forced to operate (except for the
case of LOCK setting).
Normal：3.0VA Operating：4.0VA
4. Good operability and visibility design is
adopted. The numerical display turns on for 3
seconds when the setting value is changed,
which enables to check setting values easily.
5. Panel cutout is the same as previous MELPRO-A
series and E series.
MGR-A3V-R
110PGA
0.2A (MZT type ZCT primary)
50/60Hz (switchable)
AC110V (Range: 90～120V)
LOCK -0.1-0.2-0.4-0.6-0.8-1.0A (ZCT primary value)
(*)
Instantaneous -0.2-0.3-0.4-0.5-0.6-0.7-0.8-0.9-1.0s
(*)
50Hz(SW1-ON) - 60Hz
Auto-reset (SW2-OFF)
(*)
Indication item
I measurement
0
Pickup
I setting
0
Operating time setting
Frequency setting
Output contact setting
Fault record
Clear fault record
Unit-fixed type
(Fig. 3-13)
(0.6B7.6/0.2)
Approx. 0.6kg
6
MGR-A3T-R
111PGA
Current tripping
(SW1-OFF)
(*)
-
Range
0.05～0.09A, 0.1～1.5A
I.
Lo. ,0.1～1.0A
(※1)
In. ,0.2～1.0s
(※2)
50,60Hz
Ho.,FU. (MGR-A3V-R only)
0.1～1.5A
O.K.
F.O.
Normal：3.0VA Operating：7.0VA
Approx. 0.6kg
JEP0-IL9555