SunSurfs Automatic Transfer Switch

Connects Off-Grid Solar/Wind Systems to the Grid

Main features:

Three available operation methods

1. Automatic entry automatic reset

2. Automatic entry non automatic reset

3. Commutative standby

Three steady operating positions

1. The grid power supply is making, the standby power supply is breaking.

2. The grid power supply is breaking, the standby power supply is making.

3. The grid power supply is breaking, the standby power supply is breaking.

Compact size, single structure, beautiful outlook, 33~630A available, convenient

operation and long operating life, 2,3,4P can be supplied.

The transfer is derived by single motor. single structure, reliable transfer, no noise and small wallop.

The switch is with electromechanical interlock protection, which can ensure the two power supplies working normally, no disturbance,

The switch can be along with load automatic transfer, on urgent situation, it can be transferred by handle.

ATS Advantages

1.         The breaking capacity of the control protecting fuse is 50KA, which increases the distribution safety.

2.         There is interlock between manual and automatic operation, this can avoid the manual operation on the automatic operation.

3.         When the executive handle of circuit breaker is broken, the contact is felted or the load is in problem ( overload, short circuit), the ATS do not transfer, this is called the real electromechanical interlock.

4.         The driving mechanism of MCB type ATS is changed from fork type to concave type, which solve the problem of the break of the long handle type MCB and the non-synchronization of MCB making etc. thus strengthen the function of fast making and breaking, and enhance the mechanical life.

5.         The wrong wire connection indication can be supplied. When the phase wire and zero wire is connected wrong, the sound-photo device will alarm, it ensures the reliability.

Electrical perfomance & function

SunSurfs automatic transfer switch decide if it should turn from one power supply to the other power supply according to its voltage status and operation mode set by users. The functions depend on its controller which consists of A type and B type. See main functions table 1.

Table 1 functions of controller in SunSurfs automatic transfer switch

Controller

A  (built-in type)

B  (panel type)

Working voltage

110 / 220VAC

110 / 220VAC

Working frequency

50/60Hz

50/60Hz

Three working positions

 

 

Common power supply making

X

X

Standby power supply making

X

X

Both common power supply and standby power supply breaking

X

X

3 operations

 

 

Automatic operation

X

X

Manual remote control

 

X

Handle operation

X

X

Automatic operation

 

 

To monitor common power supply and automatic transfer

X  (check phase lacking, voltage losing)

X (check phase lacking, under volt-age, overvoltage and voltage losing)

To monitor standby power supply and automatic transfer

 

X (check phase lacking, under volt-age, over voltage and voltage losing

To control generator

 

 

Fire fighting linkage

O

O

Automatic entry automatic reset

X

X

Automatic entry non automatic reset

X

X

Commutative standby

X

X

Manually remote control

 

 

Compel it to work at common power supply

 

X

Compel it to work at standby power supply

 

X

Compel it to work at "0" position

 

X

Test

 

 

By test pushbutton on panel or control pushbutton

X

X

Indications

X

X

Operation status indication: making or breaking

X

X

Common power supply indication and standby power supply indication

 

 

Malfunction tripping indication

 

 

Parameters setting indication

 

 

Other functions

 

 

Protective function when neutral line is wrong connection(sound and light alarm)

X

X

overtime malfunction-breaking function after transfer signal sent out

X

X

Transfer time delay

0s, 5s, 15s, 30s accuracy<5%

0-255s

Recovery time delay

0s, 5s, 15s, 30s accuracy<5%

0-255s

X Standard configuration   O Selective function