Current limiting resistor (current transformer CT, potential transformer PT) 'KBL-□□'
KBL-□□
Resistors used together with grounding transformers! Please use them first. Instruments for distribution boards, control panels, distribution panels, and panels.
KBL-□□ is our current-limiting resistor. The current-limiting resistor (CLR) installed on the tertiary side of the grounded instrument transformer is necessary when using the selective ground fault relay (SGR) and the directional ground fault relay (DGR). It generates the active power required to operate the SGR and DGR, absorbs the third harmonic generated by the GPT tertiary broken delta connection circuit, and suppresses abnormal neutral point conditions, potential oscillations, and neutral point instability phenomena in ungrounded circuits.
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basic information
【Specifications】 - Primary Voltage: 220/√3V ~ 6600/√3V - Secondary Voltage: 110/√3V or 190/√3V - CLR Value [Ω]: Refer to the lineup below - CLR Capacity [W]: Refer to the lineup below - Allowable Current [A]: Refer to the lineup below - Body Material: Iron case - Dimensions: 172×141×104 (Width×Height×Depth. Unit: mm) - Weight: 1300g
Price information
KBL-□3: 8,550 yen KBL-□4: 9,750 yen
Price range
P1
Delivery Time
P3
※There is an agency in Yokohama, Japan, that has stock available.
Applications/Examples of results
This is a resistor used together with a grounding transformer.
Detailed information
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This is how to place an order for KBL-□□. Please refer to it.
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This is the specification for KBL-□□. Please refer to it.
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This is the outline diagram of KBL-□□. Please refer to it.
Line up（2）
| Model number | overview |
|---|---|
| KBL-□3 | ・Primary voltage: 220/√3V~6600/√3V ・Secondary voltage: 110/3V n (primary/secondary): 3.5, 6.0, 6.9, 7.2, 7.6, 52.0, 103.9 ・CLR value [Ω]: 251, 145, 125, 120, 115, 17, 8 ・CLR capacity [W]: 48, 83, 97, 101, 105, 724, 1448 ・Allowable current [A]: 0.44, 0.76, 0.88, 0.92, 0.96, 6.58, 13.16 |
| KBL-□4 | ・Primary voltage: 220/√3V~6600/√3V ・Secondary voltage: 190/3V n (primary/secondary): 2.0, 3.5, 4.0, 4.2, 4.4, 30.1, 60.2 ・CLR value [Ω]: 748, 433, 374, 358, 343, 50, 25 ・CLR capacity [W]: 48, 83, 97, 101, 105, 724, 1448 ・Allowable current [A]: 0.22, 0.44, 0.51, 0.53, 0.55, 3.81, 7.62 |
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.