Sieyuan Capacity Voltage Transformers (CVTs)
Long-term durability, zero maintenance — CVTs are constructed with corrosion-resistant materials, sealed housings, and leak-proof designs to eliminate maintenance and downtime.
Capacitor voltage transformer is mainly used in power frequency power system to meet the IEC/IEEE standard, outdoor rated voltage 40.5-1100kV, frequency 50/60Hz neutral point effective grounding system/neutral point non effective grounding system to provide voltage signals for electrical measuring instruments and protection and control devices, and also as coupling capacitor for power carrier communication system.
- It has excellent performance in suppressing ferromagnetic resonance. With a speed saturation damping device, it has fast transient response and can reliably damp ferromagnetic resonance. It can meet the test requirements of 320 times of ferromagnetic resonance under 0-1.5Un and can effectively suppress ferromagnetic resonance within 10 cycles. The peak value of the secondary voltage of the product drops to 5% of the peak value of the secondary voltage before the short circuit within 0.02s.
- Capacitor voltage transformer has medium voltage switch function, which is convenient for on-site operation and maintenance.
- Porcelain bushing and flange are used for integral casting to reduce bolt connection, improve sealing performance and reduce the risk of oil leakage.
- It is easy to install and maintain. Phoenix Contact terminals are used to facilitate user wiring.
- The oil tank is of cast aluminum structure, which is free of rust after long-term use
TECHNICAL PARAMETER | ||||||
Type | Highest voltage (kV) | Capacitance (pF) | Rated frequency (Hz) | Power-frequency voltage (kV) | Lightning impulse voltage (BIL)(kV) | Rated burden (VA) |
TYD 40.5 | 40.5 | 10000-20000 | 50/60 | 95 | 200 | IEC: 10/30/50/75/100/120/ IEEE: 0.15Y/0.15MWXYZ/ |
TYD 72.5 | 72.5 | 10000-20000 | 50/60 | 160 | 350 | |
TYD 126 | 126 | 10000-20000 | 50/60 | 230 | 550 | |
TYD 145 | 145 | 10000-20000 | 50/60 | 275 | 650 | |
TYD 170 | 170 | 4000-10000 | 50/60 | 325 | 750 | |
TYD 245 | 252 | 5000-10000 | 50/60 | 460 | 1050 | |
TYD 300 | 300 | 5000-10000 | 50/60 | 460 | 1050 | |
TYD 363 | 363 | 5000-10000 | 50/60 | 510 | 1175 | |
TYD 420 | 420 | 5000-10000 | 50/60 | 630 | 1425 | |
TYD 550 | 550 | 5000-10000 | 50/60 | 740 | 1675 | |
TYD 765 | 765 | 5000-10000 | 50/60 | 975 | 2100 | |
TYD 1100 | 1100 | 5000-10000 | 50/60 | 1200 | 2400 | |
Technical Parameter | ||||||
Type | Rated voltage factor | Total weight (kg) | Limit output (VA) | Dimensions | ||
A(mm) | T(mm) | H(mm) | ||||
TYD 40.5 | 1.2 times/ Continuous, 1.9 times/30s | 315 | 1000 | 400 | 1394±20 | 1424±20 |
TYD 72.5 | 390 | 1000 | 400 | 1693±20 | 1669±20 | |
TYD 126 | 1.2 times/ Continuous, 1.5 times/30s | 400 | 1000 | 400 | 2015±20 | 2045±20 |
TYD 145 | 430 | 1000 | 400 | 2414±20 | 2444±20 | |
TYD 170 | 650 | 1000 | 400 | 2714±20 | 2744±20 | |
TYD 245 | 760 | 1000 | 400 | 3350±20 | 3380±20 | |
TYD 300 | 760 | 1000 | 400 | 4049±20 | 4079±20 | |
TYD 363 | 900 | 1000 | 400 | 4936±20 | 4966±20 | |
TYD 420 | 1200 | 1000 | 400 | 5643±20 | 5673±20 | |
TYD 550 | 1200 | 1000 | 400 | 6333±20 | 6363±20 | |
TYD 765 | 4000 | 1000 | 670 | 10755±20 | 10785±20 | |
TYD 1100 | 6620 | 1000 | 670 | 13832±20 | 13862±20 | |
Remark: Approximate dimensions and weights for special requirements, please consult us.
Other literature available on request
Reports, drawings, technical data sheets
