GFEVT-C3-10 12KV INDOOR THREE PHASE PROTECTION ELECTRONIC VOLTAGE TRANSFORMER
INTRODUCE
GFEVT-C3-10 Indoor electronic voltage transformer is used for protection relaying on less than 12kV circuits. The series voltage sensors are made of epoxy resin casting, fully enclosed insulation, safe and reliable. They are suitable for installing common box outdoor pole mounted circuit breakers (ZW20) or outdoor pole mounted load switches (FZW28) with good anti condensation performance. They are suitable for zero sequence voltage measurement and protection in AC 50/60 Hz lines with a maximum voltage of 12 kV and below.
All of our indoor voltage transformers are strictly comply IEC60044-7, IEC 61869-6, ANSI/IEEE C57.13, GB1207-2006, GB/T 20840.6,7, GB/T22071.2-2017, GB/T 20840.102-2020.
FEATURES
IEC60044-7; IEC 61869-6; ANSI/IEEE C57.13 standard; Rated voltages up to 12kV; Rated basic insulation levels (BIL) up to 75kV; Partial Discharge measurements exceed the IEEE/IEC and CAN/CSA requirements; Protection class using; Compact design with an overall height of only 80 mm, making it easy to arrange the internal space of the switch; Convenient installation, suitable for installation in any location; Accuracy class: 0.2, 0.5, 1, 3, 3P, 6P; Rated voltage ratio (KV): 3KV/√3, 6KV/√3, 10KV/√3 or 11KV/√3/6.5V/3; Can achieve zero sequence voltage and sampling of protection signals; The secondary output is a safe low voltage signal, greatly reducing power consumption and generating less heat; No ferromagnetic resonance, no need to configure fuse protection; No risk of secondary short circuit and high current, increased safety; Can measure DC and low-frequency AC signals; Product standardization, simplified selection and ordering process, and fast delivery; Small size, light weight, and easy installation; Combined with multifunctional intelligent feeder terminals (FTUs), these excellent features will bring great improvements to power protection and monitoring;
APPLIATIONS
Power plant; Rail way; Coal mine; Airport; Power station; Air insulation cabinet; MV switchgears; Ring network cabinet; Distribution system;
PARAMETERS
| Electrical parameters | |
|---|---|
| Standards | IEC60044-7; IEC 61869-6; ANSI/IEEE C57.13; GB1207-2006; GB/T 20840.6, GB/T 20840.7 |
| Accuracy Class | 0.2, 0.5, 1, 3, 3P, 6P |
| Rated Voltage | 12KV, 11KV, 10KV, 6KV, 3KV |
| Load impedance | ≥5M |
| Rated voltage coefficient | 1.2Un continue /1.9Un/8h |
| Secondary voltage output | 6.5V |
| Rated frequency | 50/60Hz |
| Cosø | 0.8 (lag) |
| Phase number | Three |
| Connection method | Star |
| Rated insulation level | 12/42/75KV, 7.2/32/60KV, 3.6/25/40KV |
| Insulation class | E |
| Partial discharge | 14.4kV, ≤5pC |
| Output Signal cable | RVSP Shield line L = 2.5m (length can be customized) |
| Mechanical parameters | |
| Material | Epoxy resin |
| Dimensions (W×D×H) (mm) | 383×88×80 |
| Weight (kg) | 8.0 |
| Color | Red or customized |
| Working conditions | |
| Operating temperature | -40°C to +70°C |
| Storage temperature | -40°C to +70°C |
| Daily average temp | <+40°C |
| Environment | Indoors |
| Altitude | <1000 meters |
| Conditions | No existence of severely begrimed, erosive and radioactive gas in the air. Continuous working under the rated voltage is allowed. |
