IDMTL OVERCURRENT RELAY RSH 207 Series

IDMTL OVERCURRENT RELAY RSH 207 Series

IDMTL OVERCURRENT RELAY
RSH 207 Series
Made In Japan
KASUGA IDMTL TYPE RSH207 Overcurrent Relay is designed to protect equipment such as
transformers, generators, motors and power distribution systems. This relay is simple to operate
and test. At the same time it is extremely accurate, has a long service life and features reduced
temperate error. The distinctive feature of 10 ideal current settings incorporated in the relay
practically eliminates the need to use non-standard C.T. This relay comply with BS 142 and also
IEC 255 in parts.
Layout
Red LED (trip: R)
Red LED (trip: S) Red LED (trip: T)
Instantaneous adjust
(multiplier)
Orange LED
(Instantaneous: on)
Red LED
(Inverse time multipliers: 3/10)
Test button
Red LED
(Inverse time multipliers: 1.3/10)
Green LED (power supply)
Knob (current setting)
Digital SW
(Inverse time setting)
Trip & Reset button
SPECIFICATIONS
1. Type
IDMTL
2. Model
RSH207
3. Supply voltage
AC 110/240V 50/60Hz ±15%
Other voltage upon request
4. Current setting
2.5, 3.0, 3.6, 3.75, 4.0, 4.375, 4.5, 5.0, 6.0, 7.5
5. Time multiplier
3/10
1.3/10
0.03 ~ 1.00 (Inverse time)
0.09 ~ 3 sec. (at 10 times of setting current)
0.039 ~ 1.3 sec. (at 10 times of setting current)
6. High-Set (Instantaneous protection)
2 - 10 times setting (see graph)
7. Pick up current
105% of setting
8. Reset current value
not less than 95% of current setting
9. Contact output
2C, AC 250V, 5A (cosø=1)
12. Enclosure
Standard DIN case
DIN 96 x 96 x 98mm
10. LED Indication
• Auxiliary Supply – Green
• Phase Overcurrent – Red
• Time multiplier – Red
• Instantaneous On – Orange
Protection structure
IP50 (dust protection)
11. Life
Electrical and mechanical more than
10,000 operations
Weight
Relay approx. 460g
C.T. convertor approx. 1300g
Material
ABS resin complying with UL94V0
Characteristics
1.
Ambient temperature
-10 ~ +50°C
2.
Ambient humidity
45 ~ 85%RH
3.
Voltage accuracy
± 3%
4.
Repeat accuracy
± 3%
5.
6.
Time multiplier accuracy
Temperature accuracy
± 2% or ± 30ms whichever is the greater
less than 5% at -5°C/+40°C
7.
Insulation resistance
>1000MΩ
8.
Withstand overcurrent
20 times for 5 sec.
9.
Power consumption
Approx. 4VA
10. C.T. input consumption
Approx. IVA (at 7A)
11. Voltage withstand
2kV for 1 minute between all case terminals connected together and the case earth terminal.
2kV for 1 minute between independent circuit including contact circuits.
Environmental Withstand
1.
Impulse test
5kV peak, 1.2/50µs (0.5J) between all terminals and case, earth and between adjacent terminal.
2.
Temperature
IEC 68-2-1/68-2-2
Storage and transit -25°C to +70°C
3.
Humidity
IEC 68-2-3
56 days @93%RH and +40°C
4.
Vibration
IEC 255-21-1
0.5G between 10Hz and 150Hz
5.
Electromagnetic wave
Non-operation for radio frequency at 130-180 MHz and 400-500MHz and 900-l000MHz (by Walkie-talkie of 5W)
IDMTL Overcurrent Relay RSH 207
DIMENSIONS (mm) for RSH 207
13.5
92 ± 0.5
80
11
90
96
98 max
92 ± 0.5
Scale Characteristics
1.3/10 Inverse
Multiplies of Current
X2
Time Multiplier (TM)
X3
X5
Standard Operating Time
0.10
0.28
0.22
0.17
0.11
0.30
0.23
0.18
0.12
0.33
0.25
0.20
0.13
0.36
0.27
0.22
0.14
0.40
0.30
0.24
0.15
0.43
0.32
0.25
0.16
0.46
0.34
0.27
0.17
0.49
0.36
0.29
0.18
0.53
0.39
0.31
0.19
0.56
0.41
0.32
0.20
0.60
0.44
0.35
X3
X5
Scale Characteristics
3/10 Inverse
Multiplies of Current
X2
Time Multiplier (TM)
Standard Operating Time
0.03
0.32
0.20
0.13
0.04
0.39
0.25
0.17
0.05
0.46
0.29
0.21
0.06
0.54
0.35
0.25
0.07
0.62
0.41
0.29
0.08
0.69
0.47
0.33
0.09
0.77
0.52
0.37
0.10
0.85
0.57
0.41
For other setting range, please refer to chart on back page
IDMTL Overcurrent Relay RSH 207
Connection diagram for RSH207
R
S
T
N
k3 l3 k2 l2 k1 l1 cm A1
b
c
a Ta1 Ta2 240 110 0
TERMINAL
A1 – CM
OPEN
X3
SHORT
X 1.3
Connection diagram for RSH207 with earth fault
R
S
T
N
RASP 18NB
1
8
3
4
2
5
7
6
k3 l3 k2 l2 k1 l1 cm A1
b
c
a Ta1 Ta2 240 110 0
TERMINAL
A1 – CM
OPEN
X3
SHORT
X 1.3
IDMTL Overcurrent Relay RSH207
IDMT characteristic as per IEC 255-4 and BS 142
TIME CURRENT CHARACTERISTIC
TIME CURRENT CHARACTERISTIC
100
100
1.3/10 Inverse
3/10 Inverse
10
10
OPERATING TIME (sec)
OPERATING TIME (sec)
t=1.00
t=1.00
1
t=0.70
t=0.50
t=0.40
t=0.70
t=0.50
1
t=0.40
t=0.30
t=0.20
t=0.30
t=0.10
t=0.20
t=0.05
t=0.10
0.1
0.1
t=0.03
t=0.05
t=0.03
inst.
0.01
1
10
inst.
100
0.01
1
MULTIPLES OF SETTING CURRENT
10
100
MULTIPLES OF SETTING CURRENT
Exclusive Agent:
KASUGA ELECTRIC WORKS LTD
3-11 Shimorenjaku 8-Chome
Mitaka, Tokyo 181-8518, Japan
Tel: 0422-47-5881
Fax: 0422-44-6277
51 Kim Keat Road, Unit 05-02
Mun Hean Industrial Building, Singapore 328821
Tel: (65) 6250 0522 Fax: (65) 6253 6885/(65) 6253 5879
E-mail: [email protected]
Website: http://www.munheansingapore.com