Toshiba RC803A-HP1 User Manual
TOSHIBA
I
NSTRUCTI
ON MANUAL
CURRENT RELAY
RC803A-HP1
TOSHIEA
CORPORATION
TOSHIBA
6F9E0090
CONTENTS
1.
2.
3.
4.
General
Descrigtion
Check Before Using
2.1
External
2.2 Specifications
DescriDtion
Applications
of
__-______-_________----------------------------
__-----_-__----____---------------------
-__-----__-_---_-_______________________-
Amearance
-_-_-_---_-__-__-_----------------
_--_---_-__-__--_-__-------------------
ODeration
__-______-_______-__---------------
2
2
2
3
5
6
4.1 Overcurrent Detection on Hotors ----------------------- 6
4.2 Undercurrent Detection on Motors ----------------------
b.3
-
4.4
4.5 Heaters,
5.
Mounting
Limiting Starting Current of Rotors -------------------
Transformers
---____----___-_-_-_____________________-----------
-__----__-__-___-___----------------------
Laape
and Other Circuits ---------------------
0
9
.
10
10
10
6.
7.
8.
--__-_----______---___________________
____-----_-_____-______________________
6.1
Adjustaents ----------
Current
Setting
6.2 Setting the Detection Delay
6.3
Setting the Response Delay
Ogerat ional
Cover
Reaoval
lest
____--_____--___________________________---
_-_-m-mm--- -____-__-__-__--___-_______________
Tiae
---------------------- 12
Tiae
----------------------- 13
12
12
13
17
- l-
=rosHl=A
6F9E0090
Please thoroughly read this instruction
RC803A
1. General
Current
This current relay is designed to detect current in AC circuits
with a wide range of
current of
circuits
autoaaticaiiy advance the secondary resistance on induction wound
rotor motor controllers.
During starting, excessive current such as inrush current,
exceed rated current flow in motor or transforaer circuits. this
current relay has an adjustable delay circuit to prevent it
operating during start-up.
SensinD
DescriDtion
VariOUS
(e.g.,
Relay.
aDDiications, e.t.,
electrical
heater circuits), detection of starting current to
eauiment
manual
detection of abnoraai
due to overloads or broken
before using the
lay
fro&
Further, this current
-
at the
energized when the
Dower is removed.
2. Check Before Using
defects are found, contact the dealer
relay.
2.1 External
saae tile
Before
Check the relay for any missing Darts and for damage, dirt,
rust, and loosened
control Dower is applied. and the relay is
inout signal
using
this relay. check the following Doints. If any
Aopearance
screi6
relay
is fail safe. The relay
exceeds the
free
caused during transportation.
Dreset
which you purchased this
level or control
ooerates
de-
-2-
TOSHIBA
2.2 Specifications
_____________-_-________________________------------------------------
6F9EO090
ITEH
Rated Current
Range of current
sensing
Inout
circuit
voltage
Type
of Current
SPECIFICATIDHS
5A
(continuous)
0.5 - 5A (For current above this range, use a
CT (current transforrer) and connect the
relay to its secondary side).
>
low voltage circuit (below AC
3
To detect current in high voltage circuits,
6OOV)
use a CT, and connect the relay to its
secondary side.
Overcurrent,
Undercurrent
ReSDOnSe
delay
time-adjustable
range
Detection delay
tile-adjustable
range
Operating volt.
-
3s
0.1
0.1 - 30s
a5
132VAC.
-
170 -
250VAC,
50/6Diiz
i
- 3-
TOSHIEA
6F9E0090
ITEH
Ambient
range
Temp.
Dielectric withÂstand voltage
Imgulse
stand voltage
Insulation
resistance
-
temp.
error
with-
-10-
+10X
at
Between terminals and ground
2DOOVAC
Between terminals and ground
1 X
40)~s
Between terminals and ground
more
when measured with a
SPECIFICATIORS
*SO%
t30Y
for 1
at
#in.
45OOV
(standard waveform)
SDOVDC
1DOH Ohm
aegger.
or
Vibration
-Oscillation
-1aoulse
Overcurrent
intensity
Output
rating
(250VAC aax. I
contact
Amplitude
156
40 times of max. continuous current
for 1 sec.,
JEC 174.
Over Current: SPDT
Under Current; SPDT
2.5~ - 20Hz (26)
agglied
twice, in accordance with
(SAI,
- 4-
TOSHIBA
6F9E0090
Inductive load
t-K&-
120
WEHA
AC
Rating
Designation
B300
ITEH SPECIFICATIONS
Hysteresis
AC
240
24
DC 120
240
AgDrox.
Break Continuous
5A SA
3A SA
_--_________________-----------------.
0.3A
O.l!iA (L/R=15ms)
O.lA
10X of
(p.f.-0.4)
ooerating
I
!iA
5A
5A
value.
-
Power consumption
Height
3.
DescriDtion
When the detected current exceeds the detection circuit
operating level, the detection delay timer is actuated. If
current is continuously detected for more then the detection delay
time set value, the overcurrent response delay timer is actuated.
Then, if overcurrent is detected when the
elapsed, the overcurrent relay is actuated.
If current drops below the undercurrent detection set
the
resgonse
of
Ooeration
delay timer is actuated, and after the set tile has
oDperating
olnput
.75kg
Circuit
(1.7
Power
D.lVA
lb)
3.5VA
(when 5A is
resDonse
delay timer has
applied)
over-
ValUe,
exoired,
of undercurrent detection, the detection delay timer is not actuated.
the undercurrent detection relay is actuated. In the case
-5-
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