| Brand | ROCKWILL |
| Model NO. | 252KV SF6 Gas-insulated GIS high voltage switchgear |
| Rated voltage | 252kV |
| Rated normal current | 3150A |
| Series | ZF28 |
Product Overview:
ZF28-252 type GIS is composed of standard modules through flanged joint, which can meet the demand for substation optimization design through the flexible combination between modules. It saves space and conforms to technical requests.
This product can be applied to power system, power generation, rail transportation, petrochemical, metallurgy, mining, building materials and other large industrial consumer.
Features:
Special arc extinguish chamber design with spring operation mechanism.
The structure is tight and the minimum interval width can reach 1670mm.
Three phase encapsulated main bus-bar and 3- position disconnector and earthing switch.
Self- researched 3-position disconnector and earthing switch.
Completely self-research and development with high starting point and large investment.
Inspected to be qualified by KEMA.
High level of parameters, advanced structural design.
Insulation level is higher than IEC and GB standards.
Self-blast combined interrupter, 3- position disconnector and earthing switch, spring operating mechanism.
Double sealing ring structure.
Minimum area; Compact and standardized module design with minimum intervals width 1670mm.
It is applied to cold, humid, salt fog, coastal, high altitude areas.
Spring operating mechanism base.
Technical Parameters：
What are the basic principles of GIS operation ？
Under normal circumstances, the circuit breaker and disconnector of GIS equipment are mainly operated remotely, and the "remote/local" opening of the circuit breaker and disconnector is concerned about the "remote" position.
The grounding switch of GIS equipment can only be operated on the spot, and the knife will be opened "remote/local" and concerned about the "local" during operation.
In any case, only the program can be operated, and the "interlock release switch" on the control cabinet must be in the "interlocking" position, and the unlocking key is sealed together with the microcomputer anti-mistaken unlocking key, and is used according to the same regulations.
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