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Megger MS-2A断路器及过流继电器测试设备
MS-2A是独立的测试设备，高电流输出功能和控制功能集成在同一台机器上。该仪器可测试热、磁及固态电机过载继保仪器、断路器、接地故障跳闸器件和过流继保仪器。
MS-2A可测试过流继电保护的动作延时和等级为125A的电机过载保护和模块化断路器。如果需要测试一个瞬间跳闸的设备，*高输出电流可以达到750A。重量轻、便携的初级电流注入测试仪
过流继电器测试
NEC 230.95的接地故障性能测试
断路器测试
Megger MS-2A断路器及过流继电器测试设备
DESCRIPTION
The Megger MS-2A test set is used around the world by
several thousand utility companies, industrial plants and
electrical service organizations.
Model MS-2A is a self-contained test set that incorporates a
variable high-current output and appropriate control
circuitry and instrumentation for testing thermal, magnetic
or solid-state motor overload relays, molded-case circuit
breakers, ground-fault trip devices and overcurrent relays.
APPLICATIONS
Model MS-2A is capable of testing the time-delay
characteristics of overcurrent relays, motor overload relays
and molded-case circuit breakers rated up to 125 amperes,
when following the recommended test procedure of testing
the time delay of these devices at three times their rating.
Higher currents are available for the short durations
required to test an instantaneous trip element. For
example, the test set will provide a maximum shortduration output of 750 amperes
through a typical,
125 ampere, molded-case circuit breaker.
The MS-2A is ideal for testing ground fault protection
devises with window CT’s. The NEC 230.95C requires
specific ground fault devices be performance tested when
initially installed.
The MS-2A is commonly used by many utilities and service
organizations as a economical light weight overcurrent
relay test system.
