Woodward SPM-D11 series load sharing synchronizer

Application scenarios

SPM-D11 is a microprocessor based synchronizer suitable for single-phase or three-phase AC generators equipped with Woodward or other compatible speed controllers and automatic voltage regulators. It achieves automatic frequency, phase, and voltage matching through analog or discrete output bias signals, combined with synchronous, load and power factor control or synchronous load sharing of a circuit breaker, as well as generator protection functions.

Main functions and features

Synchronization function

Capable of phase matching, slip frequency synchronization, and voltage matching.

Perform two-phase detection on the generator and busbar.

There are selectable operating modes, such as SPM-A (Run, Check, Allow, and Close).

Can perform synchronous checks and synchronous time monitoring.

Load/reactive power sharing

It can perform parallel operation of the power grid, active power control, and true effective value power calculation. The active power setting value of the generator can be set through parameters (2 values) or 0/4 to 20mA.

Support soft uninstallation and power factor control, with the power factor setting value set through parameter settings.

There are power limit values and relay outputs.

Isolation operation

Can perform frequency control and voltage control.

Dead bus operation

Circuit breakers can be closed according to demand.

Protection function

Perform single-phase current transformer detection and two-phase voltage detection on the generator.

Equipped with generator overvoltage/undervoltage, overclocking/underfrequency, reverse/reduced power (32R/F), and overload protection functions.

Control output

The voltage and speed analog bias output of LSXR package can be freely configured for all levels (various configurations such as ± 1V, ± 3V, 0 to 5V, 0.5 to 4.5V, ± 10V, ± 5V, 0 to 20mA, ± 20mA, etc.).

The speed bias output can be configured as a 500Hz PWM output and adjustable voltage level.

Two up/down outputs can be configured as speed or voltage outputs.

Operational Characteristics

Two row LCD display screen is used for operation and alarm indication, with synchronous oscilloscope function, which can indicate control activities and circuit breaker status.

Equipped with multi-level password parameter protection function, it can be configured directly or through a PC, and the language can be adjusted between English or German.

Specification parameters

environmental condition

Environmental temperature: -20 to 70 ° C.

Environmental humidity: 95%, non condensing.

Electrical parameters

Rated/Δ voltage: [1] 66/115 Vac or [4] 230/400 Vac; Maximum value (V max): [1] 150 Vac or [4] 300 Vac; Rated phase to ground voltage: [1] 150 Vac or [4] 300 Vac; Rated surge voltage: [1] 2.5 kV or [4] 4.0 kV.

Measurement frequency: 40 to 70Hz; linear measurement range up to 1.3 times rated voltage; Input resistance: [1] 0.21 M Ω, [4] 0.696 M Ω; maximum power consumption per path:<0.15W.

Rated current (I rated): [1]../1A, [5]../5A; Linear measurement range up to 3.0 times rated current; Load:<0.15 VA; Rated short-time current (1s): [1] 50 × I rated, [5] 10 × I rated, with isolation function.

Input range: 12/24VDC or 18 to 250 Vac/dc; Input resistance: approximately 6.8 k Ω or 68 k Ω.

Relay

Equipped with isolation function, the contact material is AgCdO.

Load (GP): 2.00 Aac@250  Vac、2.00  Adc@24  Vdc、0.36  Adc@125  Vdc、0.18  Adc@250  Vdc。

Guided load (PD): 1.00 Adc@24  Vdc、0.22  Adc@125  Vdc、0.10  Adc@25