Medium Voltage Switchgear Diagram

Medium voltage one line click here to switch to low voltage one line.

Medium voltage switchgear diagram.

Mv switchgear 37 6 1 diagram of the user installation 40 6 2mv switchgear solutions 42 7. For all customers from system integrators to end users and all applications from refurbishment line extension to new installations. For industrial applications a transformer and switchgear line up may be combined in one housing called a unitized substation uss. Medium voltage products technical guide the mv lv transformer substations passive users 1.

The circuit configurations for high and medium voltage switchgear installations are governed by operational considerations. 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. For example 15 kv switchgear maximum voltage rating is commonly applied at various actual voltages including. 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.

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 switchgear is classified by the maximum voltage it can service. Short circuit current interruption. Switching of inductive currents.

Switching of capacitive currents. The most common circuit configurations of high and medium voltage switchgear installations are shown in the form of single line diagrams next paragraphs. The power system deals with the voltage above 36kv is referred to as high voltage. Medium voltage switchgear should be capable of normal on off switching operation.

Seismic qualification for metal. Medium voltage switchgear type simosec up to 27 6 kv extendable metal enclosed up to 1200 a medium voltage switchgear operating instructions description installation operation maintenance order no. Switchgear medium voltage switchgear solutions for primary and secondary distribution to suit every application. High voltage switchgear and controlgear part 210.