2.
LIGHT INDICATORS
[Trip]
LED
[Alarm]
LED
[FUNC]
display
[DP1]
indicator
[DATA]
display
Status
0
0
0
0
0
No auxiliary supply
0
0
X
X
1
Normal condition, no tripping
0
B
X
X
X
Leakage current > 50% of the I
∆
n
0
FB
X
X
X
Leakage current > 85% of the I
∆
n. Trip delay time running.
1
1
0
0
B
Relay tripped
0
0
1
0
1
Scroll through setting
0
0
1
1
1
Scroll through records
0
0
B
0
1
[DATA] programming mode
1
1
X
X
“Ct”
ZCT connection fault
X
X
X
X
“tSt”
Manual trip test
X
X
X
X
“Loc”
Transient fault lockout by reclose function
X
X
X
X
“PLo”
Persistent fault lockout by reclose function
Table 1: Relay status displayed
1 = ON
0 = OFF
X = Don't care
B = Normal blink
FB = Fast blink
3.
PUSH BUTTONS OERATION
a.
Integral Trip Test:
•
Press the [TEST] button and hold for 3.5s to perform an integral test on the relay ranging from the analog
sensing circuitry to output contacts of the relay as well as the relay indicators and display.
•
During the testing process, the first 2s is to simulate the pre-fault alarm condition then follow by 1.5s testing on
the trip time delay. End of time delay, relay trip.
b.
Trip Reset; Lockout Reset and ZCT Connection Fault Reset:
•
Press the [RESET] button once or through digital input port.
•
ZCT connection fault reset is inhabited if the fault is not rectify
c.
Parameters Viewing:
•
When the relay is operate normal and no tripping, press [RESET] button to step through the various parameters.
•
When step through the parameters, press [RESET] button and hold for 1.5 second to jump direct to the default
[FUNC].
[FUNC]
[DP1]
[DP2]
Symbols
Description
Blank
Off
Note 1
Real-time leakage current display (Default)
1
Off
On
I
∆
n
Sensitivity setting (A)
2
Off
On
∆
t
Trip time delay setting (second)
3
Off
Off
SHOTS
Nos of shots / reclose operations
4
Off
Off
tDEAD
Dead time (sec)
5
Off
Off
tPF
Persistent fault monitoring time (sec)
6
Off
Off
tREC
Reclaim time (min)
7
Off
Off
tLAR
Lockout automatic reset time (hours)
8
Off
Off
RLY2
Programmable contact
A
On
Note 1
Flt 1
Fault record #1 (Most recent)
b
On
Note 1
Flt 2
Fault record #2
c
On
Note 1
Flt 3
Fault record #3 (Oldest)
Table 2: List of [FUNC] code displayed
Note 1:
If DP2 is OFF. The unit for the [DATA] displayed is in mA.
If DP2 is ON. The unit for the [DATA] displayed is in ampere (A).
d.
Parameters Setting
•
Step 1: Press [RESET] button to step to desired parameter.
•
Step 2: Press [ ] and [ ] buttons simultaneously and hold for 1.5s to enter programming mode. The [FUNC]
digit blink to indicate the relay has enter into the programming mode.
•
Step 3: Press [ ] or [ ] button to increase or decrease the parameter value.
•
Step 4: To save the selected value, press [ ] and [ ] buttons simultaneously and hold for 1.5s. It will exit the
programming mode with [DATA] displaying the new setting.
•
To exit programming mode without saving the selected setting, press the [RESET] button once.
4.
DIGITAL INPUT PORT
a.
The digital port is for remotely reset the relay when tripped, lockout or ZCT connection fault.
b.
To reset the relay, make a connection between terminals 5 and 6 of the relay.
5.
OUTPUT CONTACTS
a.
Trip Safe Contact:
•
Activated and latch when the relay is in normal power-up condition with the measured leakage current less than
0.85 I
∆
n. De-activated during leakage trip, manual test trip or ZCT connection fault.
b.
Programmable Contact:
[DATA] Pre-fault Alarm Leakage Trip Manual Test Trip Re-close Lockout ZCT Connection Fault
0
X
X
X
X
X
1
√
√
√
√
√
2
X
X
X
X
√
3
X
√
√
√
X
4
X
X
X
√
X
5
√
√
√
√
X
6
X
X
X
√
√
Table 3: Programmable contact selection table
X = Disable
√
= Enable
6.
SELF-RECLOSE
Terms
Description
Shots
Nos of self-reclosing operation before lockout.
Dead time
Time when the trip safe contact de-activated due to leakage fault or manual test trip to the
time when the trip safe contact is activated by the recloser.
Persistent fault
monitoring time
Fault detected immediately after the trip safe contact is activated by the recloser is called
persistent fault. An time frame for monitor the persistent fault is called persistent fault time.
Reclaim time
Time required by the recloser to reset back to initial state since the last reclose operation
Lockout automatic
reset time
Time required for unlock and reset the self-reclosing module during lockout state. The
unlock operation is carry out when no operators attended the relay during lockout state.
Transient fault lockout
When the number of self reclosing operations match the number of shots setting, further
fault trip will perform the lockout.
Persistent fault lockout Relay lockout when the tripping is initiated by the persistent fault
Table 4: Self reclose function explanation
a) Shots, Dead Time and Reclaim Time
b) Persistent Fault Monitoring Time
Leakage
Trip Safe
Contact
Dead Time
Reclaim
Time
Shots
Counter
0
1
2
0
Leakage
Trip Safe
Contact
Dead Time
Persistent
Fault
Lockout
▲
▲
▲
▼
▼
▼
