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Protection - Generator Relays

70CVR Control Relay – Under/Over Voltage

70CVR Control Relay – Under/Over Voltage

GENERATOR SET protection relays are used in both manual and automatic transfer panels to monitor components of the generator itself, like the battery, and the quality of energy being supplied.

 

MODELS AND SIZES:

70CVR

 

FEATURES:

Detects under or over voltage condition
Separate adjustment for upper level and lower
Level
Hysteresis – adjustable
Output relay 8a (x 2)
Supply / relay indication
DIN rail mounting


B1UVR – Control Relay – Under/Over Voltage

B1UVR Control Relay – Under/Over Voltage

GENERATOR SET protection relays are used in both manual and automatic transfer panels to monitor components of the generator itself, like the battery, and the quality of energy being supplied.

 

MODELS AND SIZES:

B1UVR
B1OVR

 

FEATURES:

Under voltage (b1uvr)
Over voltage (b1ovr )
Adjustable trip level (ac/dc)
SPDT relay output 8a
LED indication
11-pin plug-in


45UVR & 45OVR – Control Relay

45UVR & 45OVR Control Relay – Under/Over Voltage

GENERATOR SET protection relays are used in both manual and automatic transfer panels to monitor components of the generator itself, like the battery, and the quality of energy being supplied.

 

MODELS AND SIZES:

45UVR
45OVR

 

FEATURES:

Under voltage (45uvr)
over voltage (45ovr)
Adjustable trip level
Hysteresis – adjustable
Output relay 8a
Supply indication
Relay indication
DIN rail mounting


M3MVR Control Relay – Multifunction Voltage

 M3MVR Control Relay – Multifunction Voltage

GENERATOR SET protection relays are used in both manual and automatic transfer panels to monitor components of the generator itself, like the battery, and the quality of energy being supplied.

 

MODELS AND SIZES:

M3MVR

 

FEATURES:

Over or under voltage selectable
Latching facility – selectable
delay from fault – selectable
Hysteresis – selectable
Multi range
Multi voltage


M200-PB – Phase Balance Relay

M200-PB – Phase Balance Relay

The M200-PB1 can detect the following conditions in phase 3 or 4 wire systems. Phase Unbalance, Phase Loss, Phase Reversal and Phase Sequence. The phase balance relays are used to detect phase loss and unbalance in systems using motors, generators, heater elements, transformers etc. A Phase unbalance as small as 10% in a 3 phase motor can cause the temperature in the motor winding to increase by more than 120%, correct setting of the PB1/PB2 will ensure this does not occur. Protection against open phase regenerated voltage, created if a single phase should fail is also provided. Customer adjustment of unbalanced voltage between 5 to 15% is provided along with time delay adjustment of 200ms to 10 seconds. If the system being monitored is healthy, the relay is energised, and the red LED will be illuminated. If a phase unbalance greater than the pre-set level or phase loss / reversal occurs, the relay de-energises after the time delay period. The M200-PB2 provides all the protection features of the PB1 with the additional benefit of having symmetrical under voltage protection. This means that if all the phase voltages remain balanced but drop below a pre-set value, the relay will de-energise. The under voltage is internally set. For standard units it is set at 85% below the nominal voltage, but this value can optionally be between 70% and 90%

 

MODELS AND SIZES:

M200-PB1 Detects phase loss & phase unbalance
M200-PB2 Detects phase loss, phase unbalance & symmetrical under-voltage

FEATURES:

Adjustable time delay max 30 seconds
Internal under voltage set between 90% to 70%
Calibration at nominal Hz 35….450Hz
Calibration at temperature other than 23º C


M200-A AC Current Relay

M200-A -AC Current Relay

The M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under over and combined under/over units are available. The relay operates when the adjustable trip point is reached. An externally adjustable time delay is provided to prevent nuisance tripping. As is common with all the M200 relays, on over units the relay energizes when the input signal exceeds the trip point. On under units the relay de-energizes when the input signal goes below the trip point. A red LED indicates the state of the relay, whilst a green LED indicates the condition of the power supply.

MODELS AND SIZES:

M200-A1U Single phase under current
M200-A1O Single phase over current
M200-A1C Single Phase combined current
M200-A3U 3 Phase under current
M200-A3O 3 Phase over current

 

FEATURES:

Adjustable time delay max 30 seconds.
AC Auxiliary in the range 57.7 to 480 volts.
Calibration at nominal Hz 35 450Hz.
Calibration at temperature other than 23° C.