High voltage ground fault relay LEG-107
Hikari Shoko Co., Ltd.
About This Product
■Features
- Designed to be unaffected by noise such as radio waves and surges, and has high noise resistance.
- Compact and lightweight, easy to install and save installation space.
・Zero-phase current transformers are compatible with all models from M41 to M240 and DM55 to 100.
- Operating current setting is rotary type 4-point switching.
・LEG-107 is a plug-in type, so maintenance is easy.
・It is a harmonic countermeasure product.
・This is an environmentally friendly product (compliant with the European RoHS Directive).
■Operation
LEG-107 and 108 provide ground fault protection for ordinary high-voltage power lines, and are used in combination with zero-phase current transformers.
If a ground fault occurs in the load-side high-voltage circuit after the zero-phase current transformer is installed, an electromotive force will be generated at the secondary terminal of the zero-phase current transformer. After adjusting the sensitivity of this secondary output, the amplifier circuit amplifies it, the level detection circuit determines its magnitude, and the switching circuit operates the operation indicator and output contact. After operation, the operation indicator and output contacts will not return to normal until the return switch is pressed, as this is a manual return method.
If the length of the cable after the zero-phase current transformer is installed is 30 m or more, there is a possibility of malfunction due to a ground fault on the power supply side, so in such cases, use an LDG ground fault directional relay. Please use it. Please note that the operation display cannot be reset if the control power is turned off.
■Features
-Exposed type high voltage ground fault relay.
- Compliant with "JIS C 4601 Earth fault relay device for high voltage power reception".
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Product
High voltage ground fault relay LEG-107
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Handling Company
Hikari Shoko Co., Ltd.
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Categories
1 Models of High voltage ground fault relay LEG-107
| Product Image | Part Number | Price (excluding tax) | Commercial frequency withstand voltage | Control voltage | Excessive ground fault resistance | Exterior color | Frequency | Inertial characteristics | Insulation resistance | Mass | Non-operational characteristics | Operating current setting value | Operating current tolerance | Operating temperature range | Operating time characteristics | Operating time setting value | Operation display Display method | Operation display Return method | Output contact closing capacity | Output contact configuration | Output contact switching capacity | Power consumption Always | Power consumption during operation | Test method |
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LEG-107 |
Available upon quote |
Between the relay's electrical circuit and the outer box AC2,000V 1 minute question |
AC110V Working voltage range AC90~120V | AC120A continuous | Munsell symbol N1.5 | 50/60Hz | Apply 400% of setting current value, 0.05s |
Between the relay's electrical circuit and the outer box 20MΩ or more with DC500V megger |
Approximately 0.4kg | No operation at 80% of the set current value | 0.1-0.2-0.4-0.6 (A) | ±10% of the setting current value | -20℃~+50℃ |
0.1~0.3s (130% of setting current value applied) 0.1~0.2s (400% of setting current value applied) |
0.2s | Mag sign display (during operation: orange) | Manual return method (return switch) | DC140V 5A 0.2s (L/R=7ms) | 2a |
AC110V 5A, cosφ=1 2A, cosφ=0.4 DC100V 0.6A,L/R=1ms 0.2A,L/R=7ms |
AC110V 3VA | AC110V 4VA | Test switch |
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About Company Handling This Product
- Japan