Ground fault voltage relay LVG-7S series
Hikari Shoko Co., Ltd.
About This Product
■Ground fault voltage relay device for low voltage ungrounded circuits
This is a ground-fault directional relay device that is used in combination with a zero-phase capacitor (ZPC-2C) to protect low-voltage power lines below AC440V from ground faults.
The detected voltage element can be supplied to the LDG-71S series as an MN signal. This product is a special product for low voltage ungrounded electrical circuits. Please note that there are also special products with the same format but different specifications.
■Combination
- Not compatible with zero-phase capacitor (ZPC-2C). Be sure to use the same product number in combination.
・Can also be used in combination with a ground fault directional relay. Please use as necessary.
- You can also combine AC power models and DC power models.
- Can also be combined with ground fault directional relay devices LDG-21S and LDG-21S-DC1 (both special products for low-voltage ungrounded circuits and discontinued products). However, it is not possible to mix and match AC and DC power models.
■Features
・This is a custom-made product for low-voltage electrical circuits below AC440V.
・Used in combination with zero-phase capacitor (ZPC-2C).
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Product
Ground fault voltage relay LVG-7S series
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Handling Company
Hikari Shoko Co., Ltd.
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Categories
1 Models of Ground fault voltage relay LVG-7S series
| Product Image | Part Number | Price (excluding tax) | Commercial frequency withstand voltage | Control voltage | Effect of control voltage | Effect of temperature | Exterior color | Frequency | Insulation resistance | Mass | Number of connected LDG-71S series units | Operating temperature range | Operating time error 150% of the set voltage value | Operating time setting value | Operating value error | Operating voltage setting value % of full earth fault voltage/line voltage AC*V | Operation display Display method | Operation display Return method | Output contact configuration | Output contact return method | Output contact switching capacity | Power consumption Always | Power consumption during operation | Test method | Vibration |
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LVG-7S |
Available upon quote | 2,000V AC for 1 minute between the relay's electrical circuit and the outer box |
AC110V Working voltage range AC90~120V |
At 90~120V AC or 80~143V DC (relative to actual measurements under standard conditions) Operating voltage ±10%, operating time ±10% (0.05s is 0.1s or less) |
At -20℃~+60℃ (relative to actual measurements under standard conditions) Operating voltage ±15%, operating time ±10% (0.05s is 0.1s or less) |
Munsell symbol N1.5 | 50/60Hz | 20MΩ or more between the relay's electrical circuit and the outer box using a 500V DC megger | Approximately 1.0kg | 30 units | -20℃~+60℃ |
0.05: 0.1 or less 0.2: 0.1~0.2 0.5: 0.4~0.6 0.8: 0.7~0.9 1.0: 0.95~1.1 |
0.05-0.2-0.5-0.8-1.0 (s) | ±25% |
5-10-15-20-30／420 10-20-30-40-50／380 10-20-30-40-50／300 10-20-30-40-50／210 20-30-40-50-60／105 |
Light emitting diode display (red) | Automatic return method | 2a | Automatic return method |
AC110V 5A cosφ=1 2A cosφ=0.4 DC24V 5A L/R=1ms 2A L/R=7ms DC100V 0.6A L/R=1ms 0.2A L/R=7ms |
AC110V 4.4VA | AC110V 5.5VA | Test switch |
Double amplitude 0.4mm 16.7Hz Front/back, left/right, up/down, 600s in each direction |
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About Company Handling This Product
- Japan