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Accident Prevention Solution for Voltage Sag - "Smart POWER Vaccine®"

FAQ

Does TSP®’s 1-second compensation specification have proper grounds?

TSP® standard compensation time, 1-second compensation function, is electrically capable. The facilities in the target sector, large high-tech precision new industry sector such as semiconductor, display, automobile, chemical, steel manufacture, tire, PCB, solar power plant industry and SOC sector get prime-power-entry voltage-specification of over 154kVA from KEPCO. The most common instability factor of facilities that use extra-high voltage of over 154kVA is the “instantaneous voltage sag less than 1-second.” Thus, as the countermeasure that compensates instantaneous voltage sag or blackout less than 1-second, facilities can replace the existing battery UPS which used to compensate the blackout of over 15 minutes, with “Smart Power Vaccine®” which utilizes TSP® that compensates 1-second without a battery. TSP® is “no-battery instantaneous power compensator” which redeems the weak point of existing battery UPS, applied in a lump, due to the budget constraint. TSP® aims to maximize the cost efficiency of the power compensation project. Which means that it aims to distinguish the target load of less than 1-second compensation time and the compensation target of over 30min. in average, to apply the different uninterruptable power supply devices according to the characteristics of the target loads. The unlimited power compensation method such as emergency generator system will be applied to the sectors that require over 15 minutes or unlimited power compensation (e.g. ER or OR in a hospital, SCADA in the semiconductor factory, computer room, exhaust system, fire service, safety service, emergency light and etc.).


How is TSP® different from existing UPS?

TSP® has special features as shown below that differentiate itself from the existing USP (Uninterruptible Power Supply) system. 

 

Category

TSP®

UPS

note

Energy accumulation medium

EDLC: Electrical Double Layer Capacitor,

called Ultra-Capacitor”

Storage battery

mainly lead storage battery

Recently with the change of the trend, lithium-ion battery is widely used.

Price may vary due to life time, maintenance and management, installation space and etc.

Energy Production Method

Physical reaction

Chemical reaction

 

Life time

15 years at room temperature

Generally about 5 years in average

Keeping constant temperature and humidity is necessary, as it tends to have shorter life time when the surrounding temperature is high.

Compensation time

Within 1 sec. ~ 5 sec.

Longer than 15 min. ~ 60 min.

Selectively applied in accordance with the target compensation time.

Installation of device for Constant temperature, Constant humidity

No additional device needed

Least chance to have thermogenesis by using Off-Line method.

Necessary to install because thermogenesis always occurs with on-Line method.

 

Regular Maintenance

(consumable supplies)

Not required

Necessary

Regular maintenance and periodic replacement of battery lifetime and cooling fan

Installation Space

100 is considered as standard

300

Battery installation place

Opinion

For less than 1 second instantaneous power compensation, TSP®,

for the blackout of over 5 minutes duration time, USP is reasonable to use.

 


 

How much heat does TSP® release?

Although there are formed housing and fins for cooling, TSP® releases almost no heat because it is operated by off-line.

TSP®’s compensation circuit will not operate until the instantaneous voltage sag actually occurs. Only the static switch releases a bit of heat because it is located in parallel with the load and it always stays in the circuit. TSP® takes no-cooling method which doesn’t need an additional cooling fan, and compare to the UPS system, it has an advantage as it has no maintenance factor.


What don’t we use USP with a similar capacity for the same purpose?

There are many reasons.

1. When voltage sag occurs, the loads will drop with the Off-Line UPS with smaller capacity because Off-Line UPS cannot switch-over fast enough. Ultra-fast switch-over is needed for many sensitive equipment because they start causing problems in a very short period of time, 1/4 Cycle(4ms). TSP® can switch over within 1/8 Cycle (2ms).

2. Many other USPs cannot operate under inductive load or low power factor in switchboard.

3. Due to inrush current which is highly related to current Relays, Contactors or Starter, users need to choose oversize UPS to bear this inrush current. For this purpose, Static Switch of TSP® is overrated about 8-10 times in the aspect of voltage and current, thus the users don’t need to select oversize unit and select the size of the unit by the continuous VA rating.

4. Precise control is possible because the functions such as adjustable timer and variable transfer level are already included in each unit. Thus, no further purchase or installation of additional functions are needed unlike the case of UPS. USP provides the power current for an unlimited time because it doesn’t have timing device, and it is very dangerous in any case.

5. There are battery-related problems. Maintenance, replacement and hazardous waste processing and etc.

6. USP doesn’t satisfy the rigidity requirements of industrial environment. Sometimes cooling or ventilation is required and sometimes the thickness of its enclosure is too thin and not durable. There can be a limitation in applying UPS, due to the environmental constraint of the operation site.
Is the price of TSP® with smaller capacity higher than the price of UPS with the proper capacity?

Per VA price is lower than UPS because even TSP® with minimum standard has unique features as stated below.

1. TSP® uses standby structure, super high-speed transfer time of 2mS, which is highly reliable.

2. TSP® doesn’t need maintenance because it has no additional cooling fan with Off-Line compensation method.

3. TSP® is very cost-efficient because it doesn’t need additional maintenance by using low-voltage Ultra-Capacitor with no battery which can last over 10 years.

4. TSP® includes adjustable Ride-Through Timer and Variable Transfer Level.

5. TSP® uses Overrated Static Switch which doesn’t need over-sizing according to changing loads.

6. TSP®’s Housing is more suitable for the harsh industrial environment.

7. Long-term maintenance cost is negligible because TSP® doesn’t need regular maintenance.

 

Even though the initial installation cost is somewhat higher, in the long term, TSP® is more efficient because it doesn’t need a battery and there is no regular repair or further replacement cost.