SE-701-0D is a ground-fault monitor with a supply voltage dc of 12–24 and is uniquely suited for systems with significant harmonic content.

Auto Synchronizer. 40 100/110V. The T4000 Auto-Synchroniser provides automatic synchronisation and connection of a generator to a live bus bar. The T4000 measures the voltage across two phases on either side of the circuit breaker in order to obtain data on frequency, phase and voltage deviation. The T4000 will automatically adjust the speed of the generator (through the speed controller) in order to match the frequency and phase to the live busbar. The speed output signal is a variable DC voltage, which can be easily matched to the speed trim input of an electronic speed controller. The magnitude of the output voltage is proportional to the frequency/phase deviation. When used together with the T4300 Load Sharer or T4400 Load Sharer, the speed output must be passed through the T4300 or T4400.

Electronic Potentiometer. 24V DC/AC. The T7900 Electronic Potentiometer is typically used as an interface between a unit that provides increase/decrease contacts signals and electronic speed governors or voltage regulators (AVR) controlled by analogue voltage or current signals. The T7900 works much like a conventional motorized potentiometer (e.g. the E7800). However, instead of a variable resistance, the T7900 provides a variable voltage (e.g. -5 to +5 VDC), current (e.g. 4-20 mA) or a pulse width modulated signal (PWM). The voltage and current range is programmable. The PWM output provides a 500 Hz signal with programmable duty cycle. The analogue outputs are galvanically isolated.

Blackout Limiter. 400V.3-3.5-4-4.5 sec.. The Blackout Limiter T8400 enables fast clearing of a blackout. If a blackout occurs, the first generator to have more than 90 percent voltage will make the generator breaker close. It is possible to monitor up to 4 generators with 1 unit and up to 8 generators with 2 units. If a blackout occurs, the first generator to have more than 90percent voltage will close the generator breaker.

EARTH-LEAKAGE MONITOR - 24 VAC SUPPLY. The SE-703 is a microprocessor-based ground-fault relay for resistance- and solidly-earthed systems. It offers sensitive ground-fault detection as low as 25 mA and can be used on systems with significant harmonic content. The SE-703 provides feeder-level protection or individual-load protection. The output contacts can be connected for use in protective tripping circuits or in alarm indication circuits. The analog output can be used with a PLC or a meter. The SE-703 is specifically designed to be Australian AS/NZS 2081 compliant.

T3000 Frequency Relay. 230V. The T3000 is intended for effective frequency surveillance on generators, busbar or other distribution systems. The relay contains the functions “under frequency” and “over frequency” time delayed, and 2 individual output relays, one relay for each function.

Overcur&Shrt Circ400/450V5AExt out relay. The T2500 is a high quality Over-Current and Short-Circuit relay intended for protection against thermal damage and faults caused by excessive currents. The T2500 can be used to protect generators, power transmission lines and various types of consumer supplies. The T2500 monitors two levels of current and trips the circuit breaker when one of these two levels has been exceeded continuously for a time period (defined by an adjustable delay). The T2500 will support the connection of up to three phases, but will react on the largest of these three measurements. The current measurements are done through external current transformers (CTs) – typically with a secondary current of 5A. The Over-Current function can be adjusted to trip within the range of 0.5 to 1.4 x I (input current). The delay of the Over-Current function can be set between 3 to 30 seconds. The Short-Circuit function operates within the range of 1.0 to 4.0 x I. The Short-Circuit delay can be set between 0.1 and 1 second. The T2500 will react on the highest of the three input currents. The Pick-up LED will ignite as soon as the level is exceeded, while the relay is activated only after the delay has passed.

T3000 Frequency Relay. 400/450V. The T3000 is intended for effective frequency surveillance on generators, busbar or other distribution systems. The relay contains the functions “under frequency” and “over frequency” time delayed, and 2 individual output relays, one relay for each function.

Frequency Relay. The T3000 is intended for effective frequency surveillance on generators, busbar or other distribution systems. The relay contains the functions “under frequency” and “over frequency” time delayed, and 2 individual output relays, one relay for each function.

Insulation Monitoring Relay. 230V. The Insulation Monitoring Relay T3200 is intended for continuous insulation monitoring on three phase insulated networks on board ships. The relay monitors continuously two systems galvanically separated from each other, e.g. the busbar and the lighting system, or two busbar systems. The unit features two output relays for alarm purposes and two analogue outputs for instrument reading. The instrument is not included with the relay. Instruments are available from as standard sized switchboard component.

Insulation Monitoring Relay. 415/480V. The Insulation Monitoring Relay T3200 is intended for continuous insulation monitoring on three phase insulated networks on board ships. The relay monitors continuously two systems galvanically separated from each other, e.g. the busbar and the lighting system, or two busbar systems. The unit features two output relays for alarm purposes and two analogue outputs for instrument reading. The instrument is not included with the relay. Instruments are available from as standard sized switchboard component.

Auto Synchronizer. 230V 5A. The T4500 Auto-Synchroniser provides automatic synchronisation and connection of a generator to a live bus bar. The T4500 measures the voltage across two phases on either side of the circuit breaker in order to obtain data on frequency, phase and voltage deviation. The T4500 will automatically adjust the speed of the generator (through the governor) in order to match the frequency and phase to the live busbar. Two built-in relays provide the increase and decrease pulses for a conventional governor. The strength (width) of the pulses is proportional to the frequency/phase deviation. The E7800 Motorised Potentiometer can be used to adapt the contact pulses to a signal suitable for the speed trim input of an electronic speed controller. The T4500 will continuously adjust the generator speed until frequency and phase is within limits. The signal to close the circuit breaker is issued just before phase accordance is obtained. This is done in order to compensate for the circuit breaker make time.