All requirements, which are nowadays usually specified for modern and advanced switchgear with respect to performance and reliability, are met by GIS type ZF33-252(L)/T4000-50 for rated voltages of up to 252 kV.
It is one of the most compact designs available worldwide. This compact design has been made possible by use of improved insulating materials, optimization of the enclosure form and utilization of computer-aided design methods in conjunction with modern casting techniques and improved manufacturing technology.
The space-saving design, low weight, long operating-life associated with low operating costs contributes to making this switchgear extremely economical.
Since the levels of noise and field emission (EMC) are extremely low, it is possible to integrate them even in sensitive environments, residential quarters and city centers.
By virtue of these characteristics, our ZF33-252(L)/T4000-50 switchgear fulfills all the requirements for environmentally compatible high-voltage switchgear.
ZF33-252(L)/T4000-50 |
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| Rated voltage | up to | 252KV |
| Rated frequency |
| 50 Hz |
| Rated normal current - busbar | up to | 4000 A |
| Rated normal current - feeder | up to | 4000 A |
| Rated short-time withstand current (up to 4 s) | up to | 50 kA |
| Rated peak withstand current | up to | 125 kA |
| Rated short-duration power-frequency | up to | 460 kV |
| Rated lightning impulse withstand voltage (1.2/50 µs) | up to | 1050 kV |
| Leakage rate per year and gas compartment |
| < 0.5 % |
| Bay width |
| 1800 mm |
| Driving mechanism of circuit breaker |
| stored-energy spring |
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| (single pole drive) |
| Ambient temperature range (indoor) |
| -35 °C up to +40 °C |
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| Other values on request |
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Suzhou Silverstone Electric Specialises in Power Transmission, Distribution, Electrical Automation Solutions, Power Quality Solutions, Hydro Power, Solar Power, Power Generation and Substation EPC Consultant.
We manufactures and trades
Power Transformer
--Dry type Transformer (up to 35kV)
--Oil Immersed Transformer (up to 230kV)
GIS (Gas Isolated Switchgear)
--Up to 145kV Compact Gas Insulated Switchgear (GIS)
--Up to 230kV Gas Insulated Switchgear (GIS)
MV Switchgear
--Metal clad AC Enclosed Switchgear
--Packaged Type AC Metal Enclosed Switchgear
--Gas Insulated Switchgear
LV Switchgear
--LV Withdrawable Switchgear
--LV Fixed Switchgear
MV Circuit Breaker
--Vacuum Circuit Breaker
--SF6 Circuit Breaker
--MV Earthing Switch
--Load Break Switch
Reactor
--Dry-type Air Core Reactor Series
--Dry-type Core Series Shunt Reactor
--HV Oil-immersed Shunt Reactor
HV&LV Busbar Trunking System
--Busbar Trunking System (Busway)
--Common Enclosure Busbar
HV Circuit Breaker & Disconnector
--HV Circuit Breaker
--SF6 Circuit Breaker
--HV Disconnector
--Outdoor AC discontector
--HV Earthing Switch
--Outdoor AC Earthing Switch
Capacitor
--All film high voltage shunt capacitor
--High-voltage shunt capacitor banks
--Atlernating filter capacitor complete equipments
Power Protection & Automation
Reactive Compensation
High Voltage Frequency Reactor
Medium voltage variable frequency drives
Medium voltage soft starter
STATCOM (Static synchronous compensator)
Static var compensator with Magnetically controlled reactor
TSC (Thyristor switched capacitor banks)
Active power filter
