Many companies have established production bases in Southeast Asian countries, but some areas experience frequent power outages, momentary drops, and momentary interruptions. Since the power situation there has a significant impact on the productivity of each company, ensuring the quality of the power supply is an extremely important issue.
Company X is a Philippine electronic parts manufacturer that produces various printed circuit boards. The company was seeking to increase production to meet the steady demand for smartphones as well as the growing demand for HDD storage products for data centers.
However, even though the company's factory is located in an industrial park with a relatively good power supply environment in the Philippines, it was constantly plagued by problems with its production equipment caused by momentary voltage drops and interruptions. Mr. G, the factory manager of Company X, explains that in addition to infrastructure problems, the cause is the weather conditions in the Philippines.
"Due to heavy rain and lightning caused by squalls, there were more than 10 voltage drops in the first half of 2021 alone, more than double the number from the previous year. Voltage drops caused equipment to stop, forcing us to re-plate the equipment, significantly reducing production efficiency. In addition, there was a large loss of time and money involved in restoring and restarting the equipment, so measures to prevent voltage drops and interruptions were a top priority."
Mr. G considered installing UPS in all of the equipment, but was hesitant when he thought about the installation costs, regular maintenance, and installation space issues. Mr. G and his team continued to gather information in search of other solutions.
* Voltage sag (instantaneous voltage drop) = a momentary drop in voltage.
* Instantaneous power outage (momentary power outage) = a momentary power outage.
For more information Basic knowledge about and countermeasures against power outages: What are the types of power outages and what are momentary power outages, dips, and interruptions?
Mr. G consulted with an agency he had a relationship with about measures to deal with momentary voltage drops and power outages. After consulting with the agency, SANYO DENKI CO., LTD. invited Mr. G to a web conference and proposed a "Voltage Dip Compensators, which could be installed at low cost.
"We considered products from several manufacturers, but decided on the SANUPS C23A made by SANYO DENKI CO., LTD.. What caught our attention was the fact that it can supply power without any interruptions thanks to its parallel processing method, and that it can cover not only momentary sags but also momentary blackouts. The other companies' products we were considering had a switching time of about 5 ms and could not cover momentary blackouts. We were also attracted by the harmonic cancellation function from the load device and the highly efficient energy-saving operation. When we asked for detailed data for verification during a web conference, they immediately provided us with an English manual and drawings. We were able to receive proposals at the same speed in the Philippines as we do in Japan." (Mr. G)
▼ Comparison of voltage drop countermeasure devices
product | Power Supply Method | Electricity storage medium | Momentary voltage drop correspondence |
Instantaneous power outage correspondence |
switching time |
harmonic cancel |
SANYO DENKI CO., LTD. (C23A) |
parallel processing |
Electric double layer capacitor | 〇 | 〇 | 〇 | 〇 |
general product |
Always Commercial | Electrolytic capacitor or Electric double layer capacitor |
〇 | × | △ (5mS) |
× |
Soon after, Company X decided to adopt the SANUPS C23A and installed it in their own factory. SANYO DENKI CO., LTD. 's prompt proposals, such as providing drawings, were also a deciding factor in the adoption. Mr. G had the following to say about the effects after installation:
"We were right to choose SANUPS C23A. Not only have we had zero operational problems caused by momentary drops and interruptions, but because it uses an electric double-layer capacitor, unlike a UPS there is no need to replace the battery, which has reduced running costs. And because it doesn't use a battery, the equipment is smaller and lighter than a UPS. And this has had the unexpected benefit of keeping shipping and installation costs lower than a UPS. We've seen results that exceed our expectations." (Mr. G)
SANYO DENKI CO., LTD. has bases all over the world, and has a production factory and technology center in the Philippines, so in the unlikely event of a problem, service personnel can be dispatched immediately within the Philippines, providing peace of mind to Company X.
"We were able to completely resolve the problems caused by voltage drops. We are very satisfied with SANYO DENKI CO., LTD. 's products and proposals." (Mr. G)
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