![](/uploads1553/english/profile/profile_img/pro_15.gif) |
Characteristics |
|
- Product
- ETSR 21: Light railway substation - ETSR 22: Metro substation
- DC High Speed Circuit Breaker and DC Disconnector are built-in
- KERI, CESI Type Test Certification - High Reliability and Safety - Absolute current interruption (0 ~ rated interruption capacity kA) - Excellent interruption of Mid ~ Small current(0 ~ 3000A)
- Compact design
- Advanced device PMA technology applied - Compact small size Disconnector application - Full use of Cubicle space
- Digital Protection Relay System Application
- Digital type main protection relay use(50F, 76D, 85, 45, 80) - Precise operation and reliability - Metering information , Recording function Fault event: 1000 events Fault event: 1000 events Fault wave: 16 waves(0.2~6000ms) Load current storing(Time load: 42days, Daily load: 3 yrs) - Protocol communication DNP3.0, MODBUS etc.
- Absolute Insulation capability
- Inner Insulation treatment, Arc mis-operation possibility exception - Live High Voltage Line work possible
- Convenient Circuit Breaker withdraw
- No need to have separate withdraw device - Convenient Push-In/Pull Out structure
- Other Interlock
- Complete Interlock establishment between Circuit Breaker, Disconnector, Relay and Panel
|
![](/uploads1553/english/profile/profile_img/bu_gr.gif) |
RATINGS |
|
Model |
ETRG 21 |
ETRG 22 |
Nominal Voltage |
DC 750V |
DC 1500V |
Rated Voltage |
DC 900V |
DC 1800V |
Insulation Voltage |
DC 1800V |
DC 2300V |
Rated Interrupting over voltage |
1.5~2 X rated voltage |
Rated Current |
1000/2000/3000/4000/5000A |
1000/2000/3000/4000/5000A |
Making current capacity |
71KA |
Operation Duty |
O-15sec.-CO-15sec.-CO-60sec.-CO O-10sec.-CO |
Mechanical durability |
20,000 times |
Power frequency withstand voltage(60Hz, 1min.) |
5.5kv |
6.6kv |
Rated operation voltage |
DC 110V |
Over current Release Pick-up |
3~10 Ka |
Max. Ambient Temp. /avg. Temp. |
40°C/35°C |
Installation altitude |
≤ 2000m |
Size [mm] |
Height (standard) |
2200 |
Length (standard) |
1800 |
Width (standard) |
600 |
Weight[kg] |
650 |
700 |
IP protection(IEC 529) |
IP 31 |
Applied Standard |
IEC 61992,JEC 7152 etc. | |