Current Transformer Secondary Release Sensor 'KYS-01'
KYS-01
Equipment to protect current transformers ★★★ For distribution boards, control panels, distribution panels, and panels.
When the current transformer secondary side is open, the internal magnetic flux may reach saturation, which can lead to insulation breakdown and noise generation. This device detects the opening of the current transformer secondary side and protects the transformer. Features: - Connected to the secondary side of the current transformer to monitor the voltage of each phase, activating the secondary side circuit of the corresponding phase when overvoltage exceeds the set value. - Two contacts for alarms when the current transformer 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. - When the alarm is activated, it is possible to set whether the relay is in use (activated/not activated). Current Transformer Open Detector For inquiries, please contact "lightstar_1979@yahoo.co.jp".
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basic information
General Specifications ● Auxiliary Power: 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), Energization Time: 0.3Sec/Fixed Time ● Alarm Relay: 5A, 250V AC (1 Form C), Energization 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 it.
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 into a manufacturer of products that can observe electrical data through early analog instruments, digital meters, wireless, and the internet. This development is driven by the strong will of our employees to walk alongside our customers. Additionally, we are committed to thorough customer-centric operations while actively investing in technological development at our affiliated research institute. We strive to meet our customers' diverse needs 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 as "LIGHTSTAR JAPAN." We also have Japanese staff on-site, and we look forward to your support.