Smrtr Technology
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| Model NO. LVQB(T) | Phase Single |
| Operation Condition Outdoor | Usage Protection, Measurement |
| Insulating Medium SF6 / Insulating Paper | Rated Voltage 33kv-138kv |
| Installation Active Type | Origin China |
Established in 2011, the facility is a reliable power equipment manufacturer. Key developments include oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium/low voltage complete equipment sets. Production processes emphasize energy saving, intelligence, and mechanization. With 71 utility model patents and 15 invention patents, the products are utilized in more than 40 countries across North America, Europe, Southeast Asia, and Africa.
The unit is an outdoor, single-phase, SF6 insulated top-head type current transformer. It is specifically designed for metering and relay protection in systems rated at 230 kV and below, operating at 50 or 60Hz.
Compliance Standards:
| Description | 33/35 kV | 66/69 kV | 110/115 kV | 132/138 kV |
|---|---|---|---|---|
| Highest Equipment Voltage (kV) | 36 / 40.5 | 72.5 | 123 / 126 | 145 |
| Power Frequency Withstand (kV) | 95 | 160 | 230 | 275 |
| Lightning Impulse Voltage (kV) | 200 | 350 | 550 | 650 |
| Rated Primary Current (A) | 5 ~ 5000 | |||
| Accuracy Class | 0.1; 0.2; 0.5; 0.2S; 0.5S; 5P; 10P; PX | |||
| Short-time Thermal Current | 50kA / 3s | |||
Transient Protection Winding Data (TPY)
| Rated Ratio (A) | 2500-8000/1 |
| Rated Resistive Burden (Rb) | 7.5; 10; 15; 20 VA |
| Duty Cycle | C-0.1s-O / C-0.1(0.04)s-O / C-0.1(0.04)s-0.5s-0.1(0.04)s-O |
