Medium Voltage Switchgear Symbol

Gas insulated earth disconnector fixed or rotary go back to content table 2.

Medium voltage switchgear symbol.

Switchgear medium voltage switchgear solutions for primary and secondary distribution to suit every application. While medium voltage conductors are available in 90 c mv90 or 105 c mv105 ratings the actual terminations in the transformer or switchgear cable compartments are limited to 90 c. Medium voltage technical guide technical collection basics for mv cubicle design. For example 15 kv switchgear maximum voltage rating is commonly applied at various actual voltages including.

Circuit breaker vacuum circuit breakers medium voltage circuit breakers created date. The addition of this symbol to a danger or warning safety label indicates that an electrical hazard exists which will result in personal. Secondary voltage f g connection type symbol h impedance packaged equipment a rated load b unit hp kw kva as indicated. Diagram symbols used throughout various parts of the world.

Switching of load current. Medium voltage disconnect switch non fused cut out medium voltage disconnecting fuse. When sizing the mv cables the nec derating factors must also be applied depending on the type of raceway or duct bank that will be required. Medium voltage switchgear mcset 17 5 kv air insulated switchgear withdrawable circuit breaker sf 6 or vacuum technology civil engineering guide 07897303en.

Switchgear functions designation and symbol function current switching operating current fault current disconnector isolates earthing disconnector. 12 47 kv 13 2 kv 13 8 kv and 14 4 kv. Swgr switchgear swbd switchboard sw switch stb shorting terminal block ss solid state. Medium voltage switchgear is classified by the maximum voltage it can service.

A typical medium voltage metal enclosed switchgear feeder circuit will have a combination of switchgear able to provide the following functions. For industrial applications a transformer and switchgear line up may be combined in one housing called a unitized substation uss. For all customers from system integrators to end users and all applications from refurbishment line extension to new installations. The following tables describe the device and show the symbol by area of usage.

Specific part of the medium voltage switchgear. The switchgear on the low voltage side of the transformers may be located in a building with medium voltage circuit breakers for distribution circuits along with metering control and protection equipment. Pictograms and safety symbols in and on the medium voltage switchgear depending on the version the following pictograms are used on the medium voltage.