Active Member
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[China]
Address: No.337,Kaichuang Road,Baitawang Industrial Distrit, Beibaixiang Town,Yueqing City,Zhejiang Province,China
Contact name:
Wenzhou Ginri Power Automation Co., Ltd. |
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480VAC Neutral Loss Three Phase Voltage Monitoring Relay Adjustable
Delay Time
JVRD voltage phase sequence multi-function protector (three-phase
AC protection relay) instruction manual
Protection features: ● Phase protection ● Misphase protection ●
Voltage imbalance protection ● Overvoltage protection ●
Undervoltage protection
Dimensions: 79H×23W×79D
caveat! This product is generally the power supply side of the
three-phase power supply sampling, shall not be installed in the
output side of the inverter current!
-JVRD series voltage phase sequence multi-function protector (also
known as three-phase power monitor, phase sequence protector, over
voltage protection device, etc.) is mainly used for AC 50/60Hz,
rated voltage below 460V, industrial three-phase 220V, 380V, 440V,
460V and other voltage levels of various fault detection, the
three-phase input power supply voltage is too high, voltage is too
low, lack of phase, reverse phase (phase sequence), three-phase
voltage imbalance, etc. to provide protection relay
-products widely used For air compressors, motors, distribution
boxes, pumps, oil pumps, central air conditioning units, electric
control boxes, power distribution cabinets, cranes, etc., such as
central air conditioning compressor protection, power monitoring of
various elevators, water pump, oil pump protection phase The
reverse phase protection is an indispensable protection product
that maintains the normal working voltage of the equipment during
operation of industrial equipment
Installation method : The protector base adopts rail type, and has
two M4 screw holes structure. It is directly installed
independently or HT35 rail is installed (if direct installation is
adopted, the bottom two attachments of the product must be pushed
out forcefully).
Indicator lights : 5 indicators to indicate: normal, missing phase
(voltage three-phase unbalanced), reverse phase, overvoltage,
undervoltage.
Overall dimensions : 79mm x 23mm x 79mm.
Contact form : two open and two closed
Features
Protective Function
Applications
| Model | JVRD |
| Input circuit=measuring circuit | L1,L2,L3 or L1,L2,L3,N |
| Rated voltage(line voltage) | 220VAC,380VAC,400VAC,440VAC,460VAC,50/60HZ |
| Monitoring functions | Phase sequence,phase loss,overvoltage,undervoltage,phase unbalance,neutral loss |
| Phase unbalance threshold | 15% fixed |
| Delay time for overvoltage and undervoltage | 5-8s fixed |
| Delay time for phase loss,phase unbalance,phase sequence | 1-2s fixed |
| Reset time | 0.5s fixed |
| Indicators | phase sequence,phase loss,overvoltage,undervoltage,normal |
| Output contacts | 1C/O(1C/O&1NC for 1NC for 3-phase 4wire) |
| Contact capacity | 6A,259VAC(resistive load) |
| Dielectric strength | ＞2KVA 1min |
| Weight | 130g |
| Dimension(HxWxD) | 79x23x29mm |
| Mounting | Din Rail |
