ETRI 98XH FAN UNIT

ETRI 98XH FAN UNIT

Because of the high saturation of core ( increasing of the flux density ) during the switching impulse test, after each test impulse, to bring the transformer core to the normal beginning condition (demagnetized), a few impulse tests which have small magnitude and positive polarity, are applied to provide the duration needed for the next impulse voltage . The switching impulse test is carried out on each line terminal of a three-phase winding in sequence. During the application, neutral terminal is grounded, the windings which are not under test are left open (grounded from one point).

Warranty: 365 days    Goods status: new/used      Shipping method: Courier delivery

Our products

A company specializes in the sales of module spare parts of global famous brands (DCS system) (robot system) (large servo control system). The company's products include distributed control system (DCS), programmable controller (PLC), MOTOROLA MVME industrial module, industrial control communication converter (Anybus), remote output/input module (RTU), industrial computer (IPC), industrial low screen screen (IPC) HMI SCSI (50, 68, 80Pin) AnyBus (Gateway) has become a global sales enterprise of industrial automation spare parts and components

This connection type is like 

the one in the induced overvoltage withstand test. The voltage distribution on the winding is linear like in the induced overvoltage withstand test and the voltage magnitudes of the windings, which are not under test, are induced according to the turn ratio. It must be noticed that at this instance the voltage between the phases will be 1,5 times of the phase-to neutral voltage. The test connections in three-phase transformers vary with the core design ( three of five-legged), the limit of the voltage between the phases, the position of the delta connected windings whether it is open or closed.

 This article from the temporal Ming sheng automation equipment co., LTD., reproduced please attach this link: http://www.stockdcs.com/