The main features of CVT are: - high electrical strength, large insulation margin, and reliable operation. ——Can reliably damp ferromagnetic resonance. We have successfully adopted a new type of assembly phase and conducted strict quality control to ensure that every CVT shipped from the factory can effectively dampen ferromagnetic resonance of various frequencies at any voltage from low to high. ——Excellent smooth response characteristics. When a primary short circuit occurs, the secondary residual voltage can drop below 5% within 20MS, which is particularly suitable for fast relay protection. ——Patented technology for power grid harmonic monitoring. 2. Application Capacitive voltage sensors can be used in voltage and power measurement, energy metering, relay protection, automatic control, etc. in high-voltage and ultra-high-voltage power systems, and can also be used as coupling capacitors for power line carrier communication systems. Internal accessories and external terminal blocks for harmonic voltage measurement are available upon request. (1) Installation and operation place: outdoors or indoors. (2) Altitude: products with 330kv and below shall not exceed 2000m. The 500kv product does not exceed 1000m. According to ordering requirements, plateau products up to 4000m can be provided. (3) Ambient temperature: -40/+40 degrees, -25/+45 degrees. Selected by the user when ordering (other temperature categories can also be selected). (4) Wind speed: no more than 42m/s. (5) Pollution level: Level I pollution (external insulation creepage distance ≥17mm/kv); Level III pollution (external insulation creepage distance ≥25mm/kv); Level IV pollution (external insulation creepage distance ≥31mm) /kv). The pollution level is selected by the user when ordering. (6) Re-icing thickness: no more than 10mm. (7) Earthquake intensity: no more than 8 degrees. Products with higher earthquake resistance can also be provided according to user requirements. (8) System rated frequency: 50Hz or 60Hz is determined by the user when ordering. (9) System grounding conditions: The neutral point is effectively grounded or the neutral point is not effectively grounded; this is determined by the user when ordering. 3. Model Description The model composition of CTV is as follows: TYD☆◇—□△where: TYD—capacitive voltage transformer, ☆—corner note, design serial number, ◇—rated voltage of CVT (and rated phase voltage of the system), unit is KV, □—rated capacitance, unit is uF, △—endnote, characteristic code among them: F—product is used in neutral point non-effective grounding system, if there is no such letter, it is used in effective grounding system; G—plateau prototype product ;H—pollution resistance level III or above; TH—humid tropical areas