ABB 216GD61a auxiliary relay and optocoupler assembly

ABB 216GD61a auxiliary relay and optocoupler assembly

ABB’s 216GD61a is an auxiliary relay and optocoupler assembly in the REG216 digital generator protection module.

Functional role
Electrical isolation: The optocoupler part of the input signal and the output signal for electrical isolation, can effectively block the electrical interference between the circuit, enhance the stability of the system and anti-interference ability. For example, in complex industrial environments, external electromagnetic interference can be prevented from affecting the normal operation of the protection module.
Signal conversion and amplification: The input signal is converted and amplified to ensure that the signal can reliably drive the auxiliary relay and achieve accurate control of the subsequent circuit.
Control signal transmission: the auxiliary relay receives the signal output of the optical coupler to realize the on-off control of the relevant circuit, so as to perform various protection functions in the generator protection system, such as cutting off the relevant circuit in time to protect the generator equipment when the generator is abnormal.

peculiarity
High reliability: The use of high-quality optical couplers and relay components, with good electrical performance and stability, can work stably in harsh industrial environments for a long time.
Fast response: The response speed of the optocoupler and relay is fast, which can quickly detect the change of the input signal and react in time to meet the requirements of the generator protection system for fast action.
Good compatibility: Works well with other components of the REG216 digital generator protection module and can be seamlessly integrated into the entire protection system.