Wholesale 3 Phase Timer Relay - Wholesale hw-RST 25 Phase Failure Under Overvoltage Relay Sequence Relay – Hawai
Wholesale 3 Phase Timer Relay - Wholesale hw-RST 25 Phase Failure Under Overvoltage Relay Sequence Relay – Hawai Detail:
Connection
The RST 25 can be connected as following in the installation diagram:
FlG1: Connection of the relay before operation.
When the relay is connected as in FIG 1, the three yellow LED’s L1,L2 and L3 light up when the power supply A1 phase L, the A2 Neutral, and the three phases”L1,”L2″and”L3″are properly connected.
If there is no under of overvoltage, phase failure of phase sequence, the green LED lights up,(terminals 11 and 14 are closed ) and the relay is ready for operation.
FIG2: Connection of the relay after operation.
When the relay is connected as in FIG 2,(the power supply Al phase L, the A2 Neutral are properly connected) after operation, the three phases”L1″,”L2″and”L3″are connected, andthere is no under of overvoltage, phase falure, phase sequence, the green LED lights up(terminals 11 and
14are closed) and the relay is ready for self retaining.
It is also possible to connect the power supply after operation in FIG2.
By both FIG’s 1 and 2, the terminal “PE”must be grounded.
Undervoltage
The desired undervoltage limit can be adjusted down to -25% UN.
Overvoltage
The desired overvoltage limit can be adjusted up to +25% UN.
Asymmetry
When adjusting over-and undervoltage limit, the asymmetric limit is also adjusted.
Time Delay
The switch off time can be adjusted by the potentiometer “Time’ Delay”from 0.1….5 seconds. With this function it is possible to adjust the time for the identification of the failure.
Contactor Control
If a phase fails during operation at load or one of the contacts of the contactor or circuit breaker is defect,(contact bounce or scorched contacts), RST 25 recognizes the failure, and also the feedback voltage, and switches off depending on the setting of “Time Delay”
The RST 25 controls the phase shift. If there is a phase failure during operation the angle from the feedback voltage is 30° and the RST 25 recognizes this failure.
Product detail pictures:
Related Product Guide:
Our company since its inception, constantly regards product or service high quality as business life, continually improve creation technology, make improvements to product high-quality and consistently strengthen business total high-quality management, in strict accordance together with the national standard ISO 9001:2000 for Wholesale 3 Phase Timer Relay - Wholesale hw-RST 25 Phase Failure Under Overvoltage Relay Sequence Relay – Hawai , The product will supply to all over the world, such as: Southampton, Auckland, Sierra Leone, So We also continuously function. we, focuse on high quality, and are conscious of the importance of environmental protection, most of the merchandise are pollution-free, environmentally friendly solutions, reuse on the solution. We've Updated our catalog, which introduces our organization. n detail and covers the primary products we provide at present, You may also visit our web-site, which involves our most recent product line. We look forward to reactivating our company connection.
By Christopher Mabey from Bhutan - 2017.02.28 14:19
Timely delivery, strict implementation of the contract provisions of the goods, encountered special circumstances, but also actively cooperate, a trustworthy company!
By Maria from Mauritius - 2018.04.25 16:46
