Siemens 3AH Инструкции, установка, эксплуатация, обслуживание - Страница 7

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Interrupter/Operator Description

The Type 3AH vacuum circuit breaker operator is intended

for application in a drawout truck for use in medium volt-

age metal-clad switchgear. The 3AH circuit breaker con-

forms to the requirements of ANSI Standards, including

C37.20.2, C37.04, C37.06, C37.09 and C37.010.

3AH circuit breakers consist of three vacuum interrupters,

a stored energy operating mechanism, necessary electri-

cal controls and interlock devices, disconnect devices to

Figure 2. 3AH Vacuum Circuit Breaker Module

connect the breaker to both primary and control power

and an operator housing. In a typical installation in a

drawout truck, insulating barriers are located between the

vacuum interrupters and along the sides.

This section describes the operation of each major sub-

assembly as an aid in the operation, installation, mainte-

nance and repair of the 3AH vacuum circuit breaker.