All Types Geya Monitoring Voltage Relay
GEYA is a leading factory for automation relays in Wenzhou China, all products have patented design and got international certificates such as CE CB. The perfect performance of products and services has won us a good reputation from clients.
We have 2 series Monitoring Voltage Relay product line, one is single phase voltage relay, another one is three phase voltage relay.
For the Single Phase Monitoring, Voltage Relay Model is called GRV8-01 OR GRV8-02. It has 4 ranges supply voltage choices–DC12V, AC/DC24-48V, AC/DC110V-240V, AC220V. The voltage monitoring relay is an electronic type, 1SPDT output relay, rated current 10A/AC1, 18mm modular design, din rail mounted, a well-solved installation problem. It’s also very easy to operate the voltage relay, a user could select operation mode through potentiometers.
The Main function is protecting electrical equipment and motors from over voltage and under voltage, and normal or emergency power supply switching.
Overvoltage Monitoring Relay–If the measured voltage exceeds the maximum allowed value, the tripping delay time starts to run. As soon as voltage values return back below the defined level, the relays close again.
Why Geya Monitoring Voltage Relay
- True RMS measurement
- 18 or 36module design product, small size.Rail mount
- Wide measuring frequency range:45Hz-65Hz.
Geya: Your Best Monitoring Voltage Relay Manufacturer
Undervoltage Monitoring Relay–If the measured voltage falls below the minimum allowed value, the tripping delay time starts to run. As soon as values return back above the defined level, the relays close again.
The under or overvoltage threshold value is set by a graduated potentiometer by reading the Unscale to be monitored directly. The hysteresis is set by a graduated potentiometer from 5 to 20 % of the preset threshold. The hysteresis value cannot be higher than the extremes of the measurement range.
In overvoltage mode, if the controlled voltage exceeds the preset threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage falls below the threshold value minus the hysteresis, the relay closes instantaneously.
In under-voltage mode, if the controlled voltage falls below the preset threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage rises above the threshold value plus the hysteresis, the relay closes instantaneously.
Overvoltage generates heat which may damage the more sensitive components in your appliances. Under voltage may cause a voltage range that is undefined for your equipment, which may result in an uncontrolled failure of individual components. GEYA voltage monitoring relays are built to safeguard you against these particular threats.
Let’s come to see our another type Three Phase Monitoring Voltage Relay Model has functioned over voltage, under voltage, asymmetry, delay time, phase sequence, phase failure, reset time, auto-reset protection.
The GRV8-03 to GRV8-8 3 phase voltage monitor is electronic type, 1SPDT output relay, rated current 10A/AC1, 18mm modular design, din rail mounted, The GRV8-03D to GRV8-8D 3 phase voltage monitor is an electronic type, 2SPDT output relay, rated current 10A/AC1, 18mm modular design, din rail mounted.
The GRV8-09 & GRV8-10 3phase voltage monitor is electronic type, 2SPDT output relay, rated current 8A/AC1, 36mm modular design, din rail mounted. The GRV8-SN & GRV8-SP 3phase voltage monitor is digital type, 2SPDT output relay, rated current 8A/AC1, 36mm modular design, din rail mounted
The 3 Phase Voltage Relay has 2 power supply 3-phase 3-wire or 3-phase 4-wire. For example, GRV8-03 (3-phase 3-wire) M460 means the voltage between L-L is 220V to 460V. GRV8-03(3-phase 4-wire) M265 means the voltage between L-N is 127V to 265V.
It’s also very easy to operate the voltage relay, a user could select operation mode through potentiometers. 3-phase voltage control relay is a protective device designed to ensure three-phase AC consumers operation in case of supply voltage unacceptable fluctuations, phase failure and electrical imbalance, clumping, and phase sequence disruption.
Every three-phase system should be monitored by a phase monitoring relay from GEYA. Phase monitoring relays monitor your system and safeguard it against phase sequence, phase failure, and asymmetry, the latter with definable asymmetry and an optional neutral conductor.
The most common problem in the three-phase system is the possibility that load is distributed unevenly. If one of the phases fails completely, the whole system may be damaged (because a change in phase sequence also reverses the motor). GEYA Series 3 phase monitoring relays detect such problems at an early stage and protect the system before any damage occurs.