Operation Indication Function; Specifications - TERASAKI TemPower 2 ACB Manual

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Specifications

Operation indication function

zIndication via single contact (AGR-11B)
When the LT, ST, INST or GF trip function is activated, an out-
put is generated via 1a-contact.
The 1a-contact will turn off after 40 ms or more.
A self-hold circuit is needed.
xIndication via individual contacts (AGR-21B, 22B, 31B)
When the LT trip, ST trip, INST/MCR trip, GF trip, ELT, RPT,NS,
REF, UVT, pre-trip alarm, or contact temperature monitoring
function is activated, LCD will indicate their operation individu-
ally and output is generated via the corresponding contact.
The OCR also has a self-diagnostic feature that monitors the
internal tripping circuits. If detecting any fault in the circuits,
this feature turns on the system alarm indicator. The control
power is needed.
Operation indications
õ: Self-hold (Note 1)
~: Auto-reset
¢: status indication
|: Not applicable
Protective characteristic L/R-characteristic S-characteristic
Function LCD Contact LCD Contact
õ õ õ ~
LTENP (Note 2)
õ
õ
ST
(Note 2
õ ~
(Note 5)
õ õ
INST/MCR
GF (Ground fault) or
õ
õ | |
ELT (Earth leakage)
OH (Contact
õ õ õ õ
temperature monitoring)
|
õ õ |
(Note 3) NS (Reverse phase)
õ õ | |
REF (Line side GF)
Trip indication ¶1 ¢ ¢ ¢ ¢
õ ~
| |
RPT (Reverse power trip)
(Note 2)
~ ~ ~ ~
PTA (Pretrip alarm)
~ ~ ~ ~
PTA2 (Pretrip alarm)
õ ¢ õ ¢
UV (Undervoltage alarm)
(Note 4)
¢
¢ ¢ ¢
Spring charge indication
õ õ õ õ
System alarm
Note 1: To reset the motion indication, press the reset button.
Note 2: The contact will turn off after 500 ms or more. Use a self-hold circuit.
Note 3: Only one function can be selected from OH, NS, REF or trip indication.
Selection of two or more functions involves manual connection of their
control circuits (custom configuration). Contact Terasaki for details.
Note 4: Only one function can be selected from PTA2, UV or spring charge indi-
cation. Selection of two or more functions involves manual connection of
their control circuits (custom configuration). Contact Terasaki for details.
Note 5: Motion indication contacts are commonly used for ST and INST/MCR.
¶1: A switch is used to indicate the ACB has been tripped. This switch is activated
whenever the off button, the overcurrent trip device, shunt trip device or
undervoltage trip device is activated.
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c-1 Contact ratings of Trip indicator and Spring charge indicator
Voltage Switch contact ratings (A)
(V)
Resistive load Inductive load
AC 250 3
250 0.1
DC 125 0.5
30 3
c-2 Contact ratings for other contacts
Current (A)
Voltage
zSingle contact xIndividual contacts
(V)
Resistive load Inductive load Resistive load Inductive load
AC 250 8 3 0.5
250 0.3 0.15 0.27
DC 125 0.5 0.25 0.5
30 5 3 2
and 5)
OCR with advanced L.C.D. display, type AGR-31B (contact Terasaki for details)
zMonitoring various data on L.C.D.
OCR can monitor,
• Phase current (A) of I
• Current (A) of I
3
• Line voltage (V) of V
0.1
(or, Phase voltage (V) of V
0.5
3 age)
• Active power max. (kW)
• Demand active power max. (kW)
• Power factor (cos ø)
• Electric energy (kWh/ MWh/ GWh)
• Frequency (Hz)
• Trip history
Fault current is monitored, and the operation cause is indi-
0.2
cated on LCD and via individual contacts.
0.04
0.2
Note 1: The supply voltage to the OCR for indicating the main circuit voltage or
0.7 power must not exceed 250 VAC. If the main circuit voltage exceeds
250 VAC, a step-down power transformer is needed. When ordering
the ACB, state the step-down ratio of the transformer you will use.
x Gives the system alarm with number on the LCD
for the following abnormal function.
• Trip function fail
• MHT circuit break
, I , I and their max. peak current
1 2 3
, I
g
N
, V , V and their max. peak voltage
12 23 31
, V , V
and their peak volt-
1N 2N 3N
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