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VFT1三相欠電壓監測繼電器
電壓監控繼電器這些繼電器對三相或單相電源工況進行監控。這些繼電器適用於對發電機供電的平衡或不平衡三相三線、三相四線和單相負荷，UPS、穩壓器、反相器或（多用途）電路板進行監控，防止電壓波動啟動備用發電機、電機、運行交流故障單位、發電機組、AMF面板、PCC、配電櫃和類似用途。
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型號及名稱 |
UVF D1
欠壓繼電器，4W |
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供電電壓 |
110/240/380/415/440V AC+20/-25 ％ ,50/60Hz |
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輸出觸點（伏特） |
1 CO |
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跳閘設置值 ( 伏特 )
欠壓 |
75% － 95 ％ ( 可調 ) |
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過壓 |
無 |
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跳閘延時 |
1 － 10 秒（可調） |
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電源開啟延時 |
3.5 秒 ±1.5 秒 |
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重置模式 |
自動 |
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重量 |
175 克 |
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尺寸 (mm)
外形尺寸（長 × 寬 × 高） |
75×30.5×117.5 |
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安裝尺寸（長 × 寬） |
68 中心對中心 |
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Introduction: |
| It is a 3 Phase 4 Wire Under Voltage Relay. It is best suitable for balanced or unbalanced 3 phase 4 wire loads powered by 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 & panel mounting facility. | |
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| Features: |
· Adjustable Under Voltage Settings (75%-95%)
· Available for any System Voltage.
· Auto / Manual Reset.
· Sleek DIN Rail mounted housing.
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| Technical Specifications: |
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Specifications |
| 1 |
System Supply |
110 / 240 / 380 / 415/440 V AC+20 / -25%, 50 / 60 Hz |
| 2 |
Output Relay Contact |
1 CO |
| 3 |
Trip Setting |
Under Voltage 75% - 95% (adjustable); Over Voltage N.A. |
| 4 |
Trip Time Delay |
1- 10 secs. (adjustable) |
| 5 |
Power on Delay |
3.5 secs ±1.5 secs |
| 6 |
Reset |
Auto |
| 7 |
Weight |
175 gms. |
| 8 |
Dimensions (mm) |
Overall (L x W x D) 76 x 30.5 x 117.5; Mounting 68 centre to centre | |
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