Voltage Dip Compensator | Products & Services | NISSIN ELECTRIC OFFICIAL SITE

Voltage dip refers to a momentary voltage drop, while a blackout refers to an instantaneous power failure. They are two different phenomena. In power transmission line accidents caused by natural disasters such as lightning, a blackout can be avoided by removing short failures quickly, but a temporary voltage drop (voltage dip) cannot be avoided. Measures against the voltage dips help improve productivity significantly.

	Voltage dip	Blackout
Phenomenon	Voltage dip refers to the phenomenon in which the voltage drops for several cycles. It continues until a failure of a power transmission line (due to lightning, etc.) is removed from the power grid. In general, a voltage dip continues for about 0.1 seconds.	Blackout refers to a phenomenon in which the voltage drops to zero for a long/short period of time. A blackout whose duration is very short is referred to as an instantaneous power failure or instantaneous interruption. Due to the use of the reclosing circuit method (in which forced line charging is conducted after recovery from insulation deterioration due to a failure of the power transmission line), a blackout continues for 10 to 60 seconds in general.
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Voltage dip

Blackout

Phenomenon

Voltage dip refers to the phenomenon in which the voltage drops for several cycles. It continues until a failure of a power transmission line (due to lightning, etc.) is removed from the power grid. In general, a voltage dip continues for about 0.1 seconds.

Blackout refers to a phenomenon in which the voltage drops to zero for a long/short period of time. A blackout whose duration is very short is referred to as an instantaneous power failure or instantaneous interruption. Due to the use of the reclosing circuit method (in which forced line charging is conducted after recovery from insulation deterioration due to a failure of the power transmission line), a blackout continues for 10 to 60 seconds in general.

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Operation

Features

We offer a lineup of equipment exclusively designed to cope with voltage dips and power generator connection equipment.
Our products can cope with real-world voltage dips and reliably compensate for continuous voltage dips in the event of multiple lightning strikes. The mechanism is designed to eliminate unnecessary power consumption. Maintenance costs are reduced because there is no need to replace power storage devices. No temperature control (air conditioning) is required, either. The equipment offers cost-efficient solutions against voltage dips. The equipment is compact and can be installed even in a small space.
Notably, the UNISAFE and MEGASAFE, which are exclusively designed to cope with voltage dips, focus on compensating for voltage dips. The cost-effective equipment achieves low prices, space reduction, high efficiency, and low maintenance.
Our lineup also includes the new UNISAFE, which meets the requirements of an Eco-product,* our unique environmental label.

Eco-product: a product whose greenhouse gas emissions have been reduced by 20% or more compared to the FY2000 level

Need	Product	Advantage
Measures against voltage dip （capacitor type）	UNISAFE（100～400kVA）	The products compensate for only the undervoltage and are resistant to multiple lightning strikes (continuous voltage dips). The products are highly efficient and achieve low running cost. The products can be installed in clean rooms that are not subject to restrictions under the Fire Services Act. UNISAFE also meets the requirements for the three-phase four-wire type SOV specifications.
Measures against voltage dip （capacitor type）	MEGASAFE（1000～4000kVA）
Interconnection of power generator	High Speed Fault Current limiting Switch	The product limits the fault current from the first wave using reactors. The voltage of the power generator bus bar can be maintained until system parallel off. The thyristor SW achieves quick parallel off of the commercial grid.

Conform to the JIS, JEM, and JEC standards