VAMP 221
16Pages

Selective Arc Flash Protection for Low and Medium Voltage Power Systems Modern society heavily depends on an uninterrupted supply of electric power. Prolonged power outages cause loss of business to the power supplier and loss of production to the power consumer. Regardless how safe a power system is, faults do occur. This being the case the damage caused by power system faults must be kept to a minimum level. The ultimate solution is to selectively isolate the fault as fast as possible, while maintaining the operation of the healthy network A VAMP arc protection system can principally be implemented in three different ways, as a autonomous master unit system, as a part of the Schneider Electric protection relay system or as an integration between a master unit system and the Schneider Electric protection relay system. CUSTOMER BENEFITS • Personnel Safety A fast and reliable arc protection system may save human lives in case of an arc fault arising in a switchgear during work in • Reduces Loss of Production The shorter the operating time of the arc protection system the smaller the damage caused by the arc fault will be and the shorter the possible outage of the power • Prolonged Switchgear Life Cycle A modern arc protection systems increases the life-cycle expectancy of switchgear nstallations, investment decisions in new switchgear installations can be postponed and money can be saved by re-Vamping existing switchgear systems • Reduced Insurance Costs The faster and better the protection system of a power installation is, the more generous the insurance terms and costs will be. • Low investment Costs and Fast characterized by low investment costs and a fast installation and commissioning time. One successful operation of the arc protection system provides immediate • Reliable Operation Function based on the simultaneous appearance of light and current or alternatively on the appearance of light alone, depending on the application Designed according to IEC-60255 standard • Vast Experience Schneider Electric is the pioneer in the field of arc flash protection with more than 10.000 VAMP arc flash protection systems and units with over 150.000 arc detecting sensors in service world-wide

SECURE YOUR ASSETS AND STAFF SAFETY An arc protection relay is a protective device used to maximize the personnel safety and minimize the material damage of the installation in the most hazardous power system fault situations. The arc protection system detects an arc in an installation and measures the fault current. In an arc flash situation, the arc protection relay immediately trips the concerned circuit breaker(s) to solate the fault. An arc protection system operates much faster than conventional protection relays and thus damage caused by an arc short circuit can be kept to a minimum...

CONVENTIONAL PROTECTION SYSTEM RE-VAMPED ARC FLASH PROTECTION SYSTEM FOR MV/LV protection system Total Fault Clearing Time Typically • Outgoing feeder 50 (relay) + 60 (CB) • Incoming feeder 350 (relay)+ 60 (CB) Resistance Earthed Network • Earth-fault relay operation times are typically set high, thus burning times of high-impedance type arc faults are prolonged Typically the burning time of an arc fault should be limited to less than 100 ms in order to avoid major damage Burning times of nearly half a second will most certainly cause considerable damage in the switchgear installation...

Arc Protection VAMP 221 Vamp Arc Protection has a Solution for Every Panel builders • Complement to arc resistant panel • Enhanced operator protection even in the door open condition • Protects also switchgear itself • Cost effectiveness from basic to demanding applications • The system shall be adaptive to changes during the execution of the switchgear construction project • Arc sensors mountable in stages. Quick installation. • Choice and mixture of sensor technologies (point sensor, fiber sensor) supported • Robust construction of sensors • Complete functional testing before delivery...

Arc Protection VAMP 221 Customer Segment All Over the Power System Power generation • Precise quick operation as the currents are high • Alternative implementation of the bus bar protection using arc protection systems. • High immunity against interference Wind power • Protection of generator, transformer, converter cabinet, cable joints and circuit breaker compartment • Integrated smoke and arc detection with the same unit • Cost effectiviness • Generator set emergency trip • Basic protection with full self-supervision • Safety loop support System integrators • Preparation and...

Arc Protection 06 VAMP 221 selective and Flexible Arc Flash Protection solutions for low and Medium Voltage systems The modern motor control centers (MCC) equipped with an arc flash protection gives an ultra-fast arc protection for the switchgear limiting the possible arc flash fault to a minimum. The point sensors give an accurate location of the fault thus the required repair for the MCC’s is fast and the power can be restored without fault location time delay. Central unit trips both the incoming LV circuit breaker and the circuit breaker up-stream. The nature for an arc flash fault can...

Arc Protection 07 VAMP 221 CBFP CBFP T2 T4 VAM 4cd T T1 VAMP 221 T1 T1 Zone 4 Zone 1 T2 VAM 12ld T2 Zone 2 T1 Zone 5.1 Zone 5.2 S1 Zone 5.3 S2 S1 Zone 5.4 Zone 5.5 T2 S2 T2 S2 T3 T2 T T1 VAM 12ld The selectivity requirement of the arc flash protection is dependent of the switchgear construction and on importance of the power distribution. The more important the supplied power distribution process is the more selective arc flash protection scheme is implemented. The left side of the medium voltage switchgear, as seen in the picture, has various protection zones. Cable termination has its own...

Characteristics and Highlights of the VAMP 221 CENTRAL UNIT • Circuit-breaker failure protection (CBFP) • Operation on simultaneous current and light or on light only • Informative display • Four normally open trip contacts • One normally open and one change over alarm contact • 7 ms operation time (including the output relay) • Programmable operation zones • Continuous system self-supervision The auxiliary supply, CT wiring, trip and alarm outputs as well as modular cables are connected to the rear side of the Central Unit. VAMP 221 ARC PROTECTION SYSTEM - • Auxiliary supply and...