Optimal automation of medium voltage grids
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Grid Automation packaged solutions Optimal automation of medium voltage grids

Application principles of the Zone concept Grid Automation (GA) packaged solutions The zone concept offers a method to analyze and plan the layout of a distribution grid in order to improve supply performance and operation efficiency of power distribution. In the Zone concept the distribution grid is divided into zones where the zone borders are determined by vulnerability for faults, power consumption and location of distributed energy resources. Between the zones are intelligent grid components called zone dividers, and depending on the capability of the zone divider the zone on the...

GA package for outdoor circuit breaker The solution includes a three-phase vacuum circuit breaker with bi-stable magnetic actuators and a separate Intelligent Control Cabinet. In addition to the pure circuit breaker solution there are two additional variants with one respectively two air-insulated line disconnectors. The circuit breaker has built-in current transformers and voltage sensors. A standard pluggable cable is delivered for the connection between the circuit breaker and the Intelligent Control Cabinet. Secure GPRS/EDGE communication to the network control system is provided via...

GA Package for outdoor switch-disconnector With Intelligent Control Cabinet The solution includes a three-phase gas-insulated (SF6) load-break switch and a separate Intelligent Control Cabinet. Two basic solution variants are developed, one single switch solution and one 3-way solution, built of three switches. Both solution variants are provided with three-position (ON-OFFEARTH) switches. The EARTH position is always manually operated. Secure GPRS/EDGE communication to the network control system is provided via the built-in communication unit. Key features: –– Closed and weather protected...

GA Package for outdoor switch-disconnector With Remote Control Cabinet The solution is based on a three-phase air-insulated disconnector, which can be equipped with a breaking chamber that also gives fast closing of the disconnector. For remote operation a remote control cabinet, with a multifunctional IED communicating over GPRS/EDGE and a motor control unit, are included. The IED is able to control three disconnectors, thus a node with three disconnectors can be controlled with one master control cabinet and two slave motor control units. Two threedisconnector solutions can be handled...

GA Package for switch-disconnector station The solution consists of the switchgear with one incomer bay and two outgoing feeder bays in a weather proof housing for pad mounting. A version combined with a distribution transformer and related low-voltage switchboard is also available. As in all the package solutions wireless GPRS/EDGE is offered as the standard communication. The bays are equipped with air insulated switch-disconnectors having load-break capability and the multifunctional IED includes protection and autoreclosing functions. Thus the zone downstream from the station can be a...

GA Package for circuit breaker station The solution consists of the switchgear with one incomer and two outgoing feeders provided with vacuum circuit breakers. Alternatively the switchgear has two incomers for a looped ring feeder and one outgoing branch feeder, optionally combined with a MV/LV distribution transformer. The switchgear is mounted into a weather proof steel or concrete housing. Key features: – – Switchgear in a weather proof, easy to attend construction – – Vacuum circuit breakers in the feeders – – Local and remote control – – Protection and autoreclosing – – Measurements...

Features: –– Internal VPN and firewall for secure communication –– Mobile operator independent static IP addressing with the Viola M2M Gateway –– Local polling of IEC 60870-5-101 devices save communication costs as only arising events need to be sent to the IEC 60870-5-104 network –– Packet compressor for sending multiple events in a single TCP/IP packet instead of individually –– Self diagnostics for communication and the device Key advantages: –– No need for planning and maintaining a communication network –– Location independent communication allows integration of the package solutions...