Features
- Continuous system self-supervision
- Event logs, disturbance recording and real-time clock
- Three-phase current, Zero-sequence current
- Two change-over alarm contacts including IF
- Complete digital design, simple principle;
- Strong electrical performance;
- Comprehensive record of fault information;
- Double criterion of over-current and arc, high reliability;
- Optical fiber transmits, strong electromagnetic interference resistance;
- Programmable logic of trip exit;
- Fast exit tripping, short total fault clearing time.
Applications
- Reduce the harm of arc light to human body;
- Reduce damage to equipment caused by arc short-circuit faults;
- Avoid transformer damage caused by bus failure;
- Protect the dc system in the station;
- Ensure the stable operation of power substations;
- Thermal power plant electrical section switchgear;
- Wind farm and photovoltaic station switchgear;
- Large municipal engineering project;
Dimension:
Specification
| Measuring circuits | ||
| Rated current IN | 5 A (configurable for CT secondaries 1 – 10 A) | |
| – Current measuring range | 0…250 A | |
| – Thermal withstand | 20 A (continuously) | |
| 100 A (for 10 s) | ||
| 500 A (for 1 s) | ||
| – Burden | < 0.2 VA | |
| Rated current I0 | 5 A / 1 A (optionally 1 A / 0.2 A) | |
| – Current measuring range | 0…50 A / 10 A | |
| – Thermal withstand | 4 x I0 (continuously) | |
| 20 x I0 (for 10 s) | ||
| 100 x I0 (for 1 s) | ||
| – Burden | < 0.2 VA | |
| Rated voltage UN | 100 V (configurable for VT secondaries 50
– 120 V) |
|
| – Voltage measuring range | 0 – 175 V | |
| – Continuous voltage withstand | 250 V | |
| – Burden | < 0.5 VA | |
| Rated frequency fN | 45 – 65 Hz | |
| Terminal block: | Maximum wire dimension: | |
| Solid or stranded wire | 4 mm2 (10-12 AWG) | |
| Trip contacts | ||
| Number of contacts | Depends on the ordering code. | |
| Rated voltage | 250 V ac/dc | |
| Continuous carry | 5 A | |
| Make and carry, 0.5 s
Make and carry, 3s |
30 A
15 A |
|
| Breaking capacity, DC (L/R=40ms)
at 48 V dc: at 110 V dc: at 220 V dc |
5 A 3 A 1 A |
|
| Contact material | AgNi 90/10 | |
| Terminal block: | Maximum wire dimension: | |
| Phoenix MVSTBW or equivalent | 2.5 mm2 (13-14 AWG) | |
| Alarm contacts | ||
| Number of contacts: | Depends on the ordering code. | |
| Rated voltage | 250 V ac/dc | |
| Continuous carry | 5 A | |
| Breaking capacity, DC (L/R=40ms)
at 48 V dc: at 110 V dc: at 220 V dc |
1,3 A 0,4 A 0,2 A |
|
| Contact material | AgNi 0.15 gold plated | |
| Terminal block | Maximum wire dimension | |
| – Phoenix MVSTBW or equivalent | 2.5 mm2 (13-14 AWG) | |
