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产品名称:
VRD1单相欠电压/过载电压监测继电器
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VRD1单相欠电压/过载电压监测继电器
单相欠压监控继电器这些继电器对三相或单相电源工况进行监控。这些继电器适用于对发电机供电的平衡或不平衡三相三线、三相四线和单相负荷,UPS、稳压器、反相器或(多用途)电路板进行监控,防止电压波动启动备用发电机、电机、运行交流故障单位、发电机组、AMF面板、PCC、配电柜和类似用途。
型号及名称 |
UVRD1 |
单相欠压继电器 |
供电电压 |
240VAC+ 20%- 30%,50/60HZ |
输出触点(伏特) |
1CO( 2CO) |
跳闸设置值 (伏特 ) |
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欠压 |
75%- 95% (可调 ) |
过压 |
无 |
跳闸延时 |
0/2/5秒(可选) |
电源开启延时 |
0/1/4/8/16分(可选) |
重置模式 |
自动延时 |
重量 |
180克 |
尺寸(mm) |
76×30.5×117.5 |
安装尺寸(长 ×宽) |
68中心对中心 |

Introduction: |
It is a 1 Phase Under Voltage Relay. It is best suitable for monitoring 1 phase pump / motor / machine loads powered by Single Phase Generators, UPS, Stabilizers, Inverters or electricity Board (Utility). It is used to protect against fluctuating voltage to start standby generators, to operate mains failure units, Gensets, AMF Panels, PCC, Distribution boards and similar applications, where close regulation is required. Some of the other added advantages are easy & quick settings from front. User friendly indications. DIN-Rail mounting and Panel mounting facility. | |
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Features: |
· Monitors phase to neutral Voltages for Under Voltage. · ON Delay, Trip Delay, Reset Delay. · Adjustable Under Voltage Settings. · Available for any System Voltage. · Delayed Auto Reset. · Sleek DIN Rail mounted enclosure.
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Application Areas: |
Measures 3-Phase supply for Unbalance Voltage, Loss of Phase, Phase Sequence, Under Voltage & Over Voltage. Best suitable for balance 3 phase loads or motor loads only. Phase failure &UV/OV Relays can be best used for a host of Auxiliary Systems & Plant control panels & machinery. | |
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Technical Specifications: |
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Specifications |
1 |
System Supply |
240 V AC + 20% to –30% |
2 |
Output Relay Contact |
1 CO (2 CO) |
3 |
Trip Setting |
Under Voltage 75% - 95% (adjustable); Over Voltage N.A. |
4 |
Trip Time Delay |
0/2/5 secs. (selectable) |
5 |
Power on Delay |
0/1/4/8/16 mins. (selectable) |
6 |
Reset |
Delayed Auto |
7 |
Weight |
180 gms. |
8 |
Dimensions (mm) |
Overall (L x W x D) 76x 30.5 x 117.5; Mounting 68 centre to centre | | |
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