DE19817938B4 - Three-position switch actuator for switchgear for power supply and distribution - Google Patents

Abstract

Three-position switch drive for switchgear for power supply and distribution, especially for gas-insulated medium-voltage switchgear, with operating elements and switch display devices as well as signaling switch contacts connected via cable connections and with drive couplings of primary contacts accessible from the rear of the three-position switch drives, characterized by the features
1.1 the control elements (BE) and the switch position indicator devices (SA) are arranged in the area of the drive front (AS) in such a way that the switching functions can be operated without any errors,
1.2 the signaling switch contacts are routed to a connector device (AE) which is separately assigned to the switchgear,
1.3 the drive couplings (AK) of the primary contacts are each merged into a common interface and accessible from the front of the drive (AS).

Description

The invention relates to a three-position switch drive for switchgear energy supply and distribution, especially for gas-insulated medium-voltage switchgear, with controls and switch position indicators as well as via cable connections connected signal switch contacts and with from the rear the drive clutches accessible from the three-position switch drives of primary contacts.

A three position switch actuator The type defined at the outset is from the Siemens publication AG, "Circuit breaker fixed installation systems up to 24 kV, SF6-insulated, type 8DC11, catalog HA 35.41, August 1995 ".

The panel structure is up there on page 7 that the activity for the DISCONNECT the three-position switch and the EARTH function the three-position switch is arranged directly next to each other are while the associated ones Switch position indicators not in spatial connection with these Functions are provided.

This is also on page 8 Documentation shows that the Interface drive coupling with the primary contact and thus access to the Adjust the drive kinematics behind the drive box. For setting and adjusting the drive kinematics are accordingly extensive assembly work required.

The DE 44 45 081 C1 describes a three-position switch actuator for medium-voltage switchgear with a control shaft, a separate actuation shaft for the isolator and a separate actuation shaft for the earth electrode. Mechanical and electrical switch position indicators are also provided.

The DE 29/22 324 U1 describes a display device for a circuit breaker system with a display device for displaying the switch positions, which is arranged on the front of the circuit breaker system.

The basis of the invention The task is to specify a three-position switch actuator, which allows a more comfortable mode of operation overall and in particular a risk of confusion when handling the controls largely excludes.

• 1.1 die Bedienelemente und die Schaltstellungsanzeigeeinrichtungen sind im Bereich der Antriebsfrontseite derart angeordnet, daß mit der unmittelbar räumlichen Zuordnung zueinander eine fehlerfreie Bedienung der Schaltfunktionen erreicht ist,
• 1.2 die Meldeschalterkontakte sind auf eine den Schaltanlagen jeweils separat zugeordnete Anschlußsteckereinrichtung geführt,
• 1.3 die Antriebskupplungen der Primärkontakte sind jeweils zu einer gemeinsamen Schnittstelle zusammengeführt und von der Antriebsfrontseite her zugänglich erreicht.

According to the invention, this is due to the features

• 1.1 the control elements and the switch position indicator devices are arranged in the area of the front of the drive in such a way that the direct spatial assignment of each other results in error-free operation of the switch functions,
• 1.2 the signaling switch contacts are routed to a connector device that is separately assigned to the switchgear,
• 1.3 the drive couplings of the primary contacts are brought together to form a common interface and are accessible from the front of the drive.

With the direct spatial Assignment of the controls to their switch position indicators is next to the raise the ease of use a risk of confusion when handling the controls of the switchgear largely excluded. This also applies to the inventive arrangement of the drive couplings for the primary contacts to who now - im Contrary to the known switchgear - no longer from the back behind the drive box but directly from the front of the drive can be reached here. With the concentration of the signaling switch contacts on a connector device can in this three-position switch actuator by establishing a plug connection several signaling switch contacts are activated simultaneously. This will reduce the effort for the installation of the cabling within the switchgear considerably reduced and by reducing the error rate the test effort reduced accordingly.

• 2.1 die Meldeschalterkontakte und die Antriebskupplungen der Primärkontakte sind auf mehrpolige Anschlußsteckereinrichtungen geführt, vor.

vor.The feature sees an advantageous embodiment of the invention

• 2.1 the signaling switch contacts and the drive couplings of the primary contacts are routed to multi-pole connector devices.

in front.

With the use of multi-pole connector devices the wiring harnesses for the Switchgear assemblies as far as possible and thus carry considerably to reduce assembly times.

The invention is illustrated by one in two Figures shown embodiment explained in more detail, whereby the

1 represents the three-position switch drive with its drive front and the

2 depicts the associated side view.

The 1 shows the actuator front AS of the three-position switch actuator. The spatial assignment of the operating elements to the associated switch position indicating devices is indicated here in a special way, with only one operating element for the sake of clarity BE is designated with its switch position indicator SE. The control elements for the isolating contact and the earth contact are known to be realized by corresponding manually operated shafts, while the associated switch position indicator devices consist of shiftable signal plates that visually indicate the respectively existing switching state.

Furthermore, it is indicated that the connector device AE is also accessible from the drive front AS of the three-position switch drive.

The 2 shows the side view of the three-position switch drive of the 1 , It is also particularly emphasized here that the operating elements BE, the switching position display devices SE and the interface SK are accessible to operating personnel from the drive front AS.

Furthermore, the position of the connector device AE shown in the middle, which is particularly the electrical Installation of these switchgear simplified.

Claims (2)

Three position switch actuator for switchgear of the Power supply and distribution, especially for gas-insulated Medium-voltage switchgear, with controls and switching display devices as well as about Cable connections connected signaling switch contacts and with of the back the drive clutches accessible from the three-position switch drives of primary contacts, characterized by the characteristics 1.1 the controls (BE) and the switch position indicators (SA) are in the range the drive front (AS) arranged such that with the immediately spatial Assignment to each other an error-free operation of the switching functions is reached 1.2 the signaling switch contacts are on the switchgear each separately assigned connector device (AE) guided, 1.3 the drive couplings (AK) of the primary contacts are each one common interface merged and from the drive front (AS) accessible here. Three-position switch actuator for switchgear for energy supply and distribution according to claim 1, characterized by the characteristic 2.1 the signaling switch contacts and the drive couplings (AK) of the primary contacts are on multi-pin connector devices (AE) managed.