Current Transformer Secondary Open Detection Device 'KYS-01'
KYS-01
Equipment to protect current transformers ★★★ For distribution boards, control panels, distribution panels, and panels.
When the current transformer is open on the secondary side, the internal magnetic flux can reach saturation, which may lead to insulation breakdown and noise generation. This device detects the opening of the current transformer’s secondary side and protects the transformer. Features: - Connects to the secondary side of the current transformer to monitor the voltage of each phase, activating the secondary side short-circuit function when the overvoltage exceeds the set value. - Two contacts for alarms when the current transformer’s secondary side is open. - Allows for optional testing of recovery and short-circuit for each phase through recovery and short-circuit buttons. Functions: - Determines the presence of an open circuit using an LED. - Sets voltage sensitivity with a digital value (4 levels). - Sets operating delay time with a digital value (1 to 10 seconds). - Allows manual short-circuit/normal recovery operation for each phase separately. - Enables setting of relay usage status (activated/not activated) during alarm operation. Current Transformer Open Detector For inquiries, please contact "lightstar_1979@yahoo.co.jp".
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basic information
General Specifications ● Auxiliary Power Supply: AC/DC 90~260V (50/60Hz) / DC 110V ● Operating Ambient Temperature: -10~50℃ ● Operating Ambient Humidity: 20~85% ● Dielectric Strength: Withstands AC 2kV for 1 minute ● Insulation Resistance: 10MΩ or more ● Lightning Impulse: Voltage (2μs/50μs), Current (8μs/20μs) ● Burst Resistance: Level 4 (IEC 61000-4-4) ● Short Circuit Relay: 10A, 250V AC (1 Form A), Energizing Time: 0.3Sec/Fixed Time ● Alarm Relay: 5A, 250V AC (1 Form C), Energizing Time: 0.3Sec/Fixed Time ● Altitude: Below 1,000m above sea level
Price information
KYS-01: Please contact us.
Delivery Time
※*This is a manufactured product, so please contact us.*
Applications/Examples of results
When the current transformer has its secondary side open, the internal magnetic flux can become saturated, which may lead to insulation breakdown and noise generation. This device detects the opening of the secondary side of the current transformer and protects the transformer.
Detailed information
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This is the terminal diagram and front panel names for KYS-01. Please refer to it.
Line up（1）
| Model number | overview |
|---|---|
| KYS-01 | ・Auxiliary power supply: AC/DC 90~260V(50/60Hz) / DC 110V ・Lightning impulse: Voltage (2㎲/50㎲), Current (8㎲/20㎲) ・Burst resistance: Level 4 (IEC 61000-4-4) ・Short-circuit relay: 10A, 250V AC (1 Form A), Energization time: 0.3Sec/Fixed time ・Alarm relay: 5A, 250V AC (1 Form C), Energization time: 0.3Sec/Fixed time |
catalog（1）
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Company information
Our company was founded in 1979 and has grown from producing early analog (needle-type) instruments to digital instruments, as well as products that allow for the observation of electrical data via wireless and the internet. This development reflects the strong commitment of our employees to walk alongside our customers. Additionally, we are making proactive investments in technology development at our affiliated research institute and are thoroughly operating our business processes with a customer-centric approach. We are dedicated to meeting the diverse needs of our customers through more differentiated services. In our case, we have become well-known in South Korea for our measuring instruments (analog, digital meters, and CT, VT). We have been exporting to Japanese companies for over a decade, and we have registered with Ipros to introduce our products to more Japanese customers. In 2022, we registered as a corporation in Tokyo and have since relocated our corporate office to Osaka under the name "LIGHTSTAR JAPAN." We also have Japanese staff on-site, and we look forward to serving you.