KEV233, and KEV234 Three Phase Voltage Monitor and Guard, Output Relay, optional Analog Output

$ 744.00$ 980.00

KEV233, and KEV234 Three Phase Voltage Monitor and Guard, Output Relay, optional Analog Output, Voltage Transducer
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Description

KEV233 and KEV234

Three Phase Voltage Guard, Output Relay, optional Analog Output

  • KEV233x and KEV234x – THREE PHASE VOLTAGE GUARD
  • Precision Under/Over Voltage Protection, not affected by heavily distorted waveform
  • Voltage Imbalance Protection
  • 3- or 4- wire systems. Definite time trip delays
  • Pathfinder function identifies faulty phase
  • Complies with G59 requirements
  • Optional fast “highest up” analogue output (F-version)
Description
The digitally controlled KEV233x and KEV234x provide precision (0.5% repeatability) high/low line voltage and phase voltage protection respectively to any three phase generator or motor.

A digitally controlled voltage window discriminator controls operation and delay of the voltage low/high alarm relays. The unit measures the zero point crossing and the true r.m.s. voltage value, and accuracy is independent of any wave form distortion.

The auxiliary voltage is supplied from the unit voltage inputs. A DC or AC auxiliary voltage input is optionally available. A green LED indicates POWER on. Start of monitoring function is delayed when the power is switched on (default 2 secs delay). In this way false tripping during power up is avoided.

The voltmeter and the triple-zone status LEDs give the clear safety message:

  • HIGH ALARM
  • NORMAL
  • LOW ALARM

Red alarm lamps LOW (under voltage) and/or HIGH (over voltage) flash instantly (approx. 1 flash per second) on passing the lower and/or upper voltage differential set points. The lamp changes state and the trip relay operates after the pre-set delay. If a fault condition ends during the delay interval, the timer will automatically reset.

The voltage differential set points can be user-adjusted to suit most applications. Trip levels and delays are settable on unit rear. Operation of the status trip relay is inverted (fail safe), i.e. the relays are energized during normal conditions.

If one phase voltage is below the low trip level and, simultaneously, another phase voltage exceeds the high trip level then both relays will operate.

The class 1,5 moving iron DIN96 voltmeter must be connected directly to any phase or via a selector switch to read all three phases. The unit has low-reflection glass to ease reading at a distance.

The “Pathfinder” function identifies the phase(s) causing the trip by flashing pattern of the relevant LED(s).

The F-versions have an isolated output proportional to the at any time highest measured voltage.

KEV233x – Three Phase 3-wire system
KEV234x – Three Phase 4-wire system

 

Additional information

Weight 2 lbs
Dimensions 9 × 9 × 9 in
Model

KEV233E Voltage Monitor, 3P, 3W, KEV233F Voltage Monitor, 3P, 3W, Analog Output, KEV233E2 Voltage Monitor, 3P, 3W, Sep. Aux, KEV233F2 Voltage Monitor, 3P, 3W, Sep. Aux, Analog Output, KEV233G Voltage Monitor, 3P, 3W, Latching, KEV233GF Voltage Monitor, 3P, 3W, Latching, Analog Output, KEV233G2 Voltage Monitor, 3P, 3W, Latching, Sep. Aux, KEV233GF2 Voltage Monitor, 3P, 3W, Latching, Sep Aux, Analog Output, KEV234E Voltage Monitor, 3P, 4W, KEV234F Voltage Monitor, 3P, 4W, Analog Output, KEV234E2 Voltage Monitor, 3P, 4W, Sep. Aux, KEV234F2 Voltage Monitor, 3P, 4W, Sep. Aux, Analog Output, KEV234G Voltage Monitor, 3P, 4W, Latching, KEV234GF Voltage Monitor, 3P, 4W, Latching, Analog Output, KEV234G2 Voltage Monitor, 3P, 4W, Latching, Sep. Aux, KEV234GF2 Voltage Monitor, 3P, 4W, Latching, Sep Aux, Analog Output

Scale

0-150VAC, 0-300VAC, 0-500VAC, 0-600VAC

Aux Supply

No Aux Supply, 100-120VAC Aux Supply, 200-240VAC Aux Supply, 380-415VAC Aux Supply, 440-480VAC Aux Supply, 12-24VDC Aux Supply, 48VDC Aux Supply, 110VDC Aux Supply

Analog Output

No Analog Output, 0-10mA Analog Output, 0-20mA Analog Output, 4-20mA Analog Output, 0-10VDC Analog Output