ATESS ATS30 Automatic Transfer Switch User Manual

ATESS ATS30 Automatic Transfer Switch

About this Manual

This chapter describes the contents of this manual, target reader, and safety symbols, can help users to have a better understanding of the manual.

Contents

This manual applies to ATESS ATS , it contains:

• Safety instruction
  Attention that needs to be paid when operating and maintaining ATESS ATS model.

• Product description
  Function, structure, principle and package information of the ATESS ATS model.

• Transportation and storage
  The mode of transportation of the product and the related storage precautions notice.

• Installation
  ATS installation conditions, tools, mechanical and electrical installation, the communication connection etc..

• Commissioning
  Inspection before commissioning.

• Routine maintenance
  Daily maintenance of ATS, the replacement of some spare parts and waste disposal instruction.

• Appendix
  Technical data, warranty policy and contact information etc..

Target readers

Qualification：

• Only professional electricians or professionally qualified personnel can transport or install this product.
• The operator should be fully familiar with the structure and working principle of the entire ATS;
• The operator should be fully familiar with this manual;
• The operator should be fully familiar with the local standards of the project.

How to use this Manual

Read this manual before installation of the ATESS ATS. Store this manual where accessible at all times.

The contents of this manual will be periodically updated or revised if necessary.

Safety instructions

Symbols explanation

In order to ensure the personal and property safety of the user during installation, or optimally efficient use of this product, symbols are used highlight the information. The following symbols may be used in this manual, please read carefully, in order to make better use of this manual.

| DANGER
DANGER indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury
---|---
****| CAUTION
CAUTION indicates there is potential risk, if not avoided, could result in equipment malfunction and property damage.

| Caution, risk of electric shock
When battery bank connecting point are exposed, there will be DC voltage in the equipment DC side; and when output breaker is on, there is a potential risk of electric shock.

| Caution, risk of fire hazard
Suitable for mounting on concrete or other non-combustible surface only.

| Protective conductor terminal
ATS has to be firmly grounded to ensure the safety of personnel.

| Risk of electric shock, Energy storage timed discharge Electrical shock danger exists in the capacitor; the cover shall be moved at least 5 minutes later after all powers are disconnected.

Safety instructions

ATS installation and service personnel must be trained and familiar with the general safety requirement when working on electrical equipment. Installation and service personnel should also be familiar with the local laws and regulations and safety requirements.

• Read this manual carefully before operation. The equipment will not be under warranty if failing to operate according to this manual.
• Operation on ATS must be for qualified electrical technician only.
• All electrical operation must comply with local electrical operation standards

Installation

Proper installation requires following all the instructions in the user manual involving transportation, mounting, wiring and commissioning. ATESS does not cover warranty for ATS damage due to failing to use it properly.
The protection level of ATS is IP20, which is designed for indoor installation.

• Please refer to chapter 5 for installation instruction. Other notice for using ATS：
• Pay attention to the safety instructions listed here and below；
• Pay attention to the user manual of energy storage controller

Operator

ATS installation and service personnel must be trained and familiar with the general safety requirement when working on electrical equipment. Installation and service personnel should also be familiar with the local laws and regulations and safety requirements.

Important note

Item 1：Static electricity can cause damage to ATS electrostatic discharge may cause unrecoverable damage to ATS internal components!
When operating ATS, operator must comply with anti-static protection norms!

Item 2: Restriction
ATS cannot be directly used to connect the life support equipment and medical equipment!

Item 3: Precautions
Make sure installation tools or other unnecessary items are not left inside the ATS before starting up.

Item 4: Maintenance notice
Maintenance can only be carried out after ATS totally discharge

Product description

ATS

ATS produced by ATESS is designed to work with ATESS HPS hybrid inverter. It mainly enables HPS system to connect with diesel generator and power grid at the same time.

Circuit diagram of ATS

Module 1| PV input| The module realizes solar inverter access, and it’s only inverter produced by ATESS. If other brand’s inverters are selected, please confirm with our R & Din advance.
---|---|---
Module 2| Grid input| The module realizes on-off grid switching between HPS and utility grid.
Module 3| DG input| The module realizes on-off grid switching between HPS and DG.
Module 4| Select DG or grid input function| The module is only needed when DG and grid are both connected to the system. Otherwise there will not be this module.

The layout of the main components

External components

The external components of a ATS contain only two indicators.

Indicator

ATS adopts intelligent design. The current power status of it can be known through two indicator lights on the door panel.

can supply power to the load normally
Grid| The indicator lights up when there is power on grid side

internal component

The internal parts of ATS include HPS circuit breaker, DG circuit breaker, power grid circuit breaker, power grid contactor, DC contactor, power supply micro break, PCB, etc.

Product information

Dimension and weight

Fig–Dimension and weight of ATS

Note: the ATS cabinet is customized according to the needs of the project, the actual size and weight could have deviation from the above table, please confirm with our sales for the actual data.

Packing information

Figure–Packing information

Transportation and storage

Transportation

Transportation should follow the transportation methods described in the user manual. ATS’s weight and center of gravity should be taken into account during transportation. The center of gravity is marked on the box.

Caution, risk of danger

During transportation, lifting equipment and personnel must be qualified.
ATS should be placed vertically and the inclination cannot be more than 10 degrees. It is not allowed to place ATS upside down or transport in a horizontal position. Incorrect lifting and transportation can lead to serious injury, property loss and damage to ATS.

Inspection and storage

ATS should be carefully checked before signing the document from the transportation company. Check the received items against delivery note, and if there is any defect or damage, immediately notify the transportation company. If necessary, you can seek help from ATESS Customer Service department.

Caution
ATESS ATS50 can only be stored when it is stopped and all the doors are closed in a dry room to protect the internal circuits against dust and moisture.

Installation

Installation condition requirements

To ensure normal operation of the machine, the installation environment is required as follows:

• The ingress protection of ATS is IP20. Moreover, as this product is an electronic equipment, it shall not be placed in humid environment;
• Install indoors and avoid sunlight and rain;
• Ventilation of the room shall be good;
• The installation environment shall be clean;
• As some noise will be produced in operation, this equipment shall be installed far from residential quarters;
• The installation ground shall be even enough, and firm enough to support the weight of ATS;
• The installation position shall be convenient for maintenance;
• Ambient temperature range: –25°C~55°C;
• Appropriate space shall be reserved for the machine to ensure ventilation and cooling.

We suggest ATS is installed in the distribution room. The floor, wall clearance, Ventilation equipment and precaution should be designed by professional personnel and satisfy the following requirements.

Foundation requirement

ATS is required to install on even ground with fire-retardant material as the surface or channel steel support structure, and sag or tilt ground is prohibited. The foundation shall be solid, safe and reliable. The foundation shall be capable of bearing the load of ATS. Its load bearing ability shall be concerned throughout the installation place selection.

Clearance space

During installation of ATS, appropriate space shall be left to the wall or other equipment, in order to satisfy the requirements on narrowest maintenance channel, emergency access and ventilation.

In front of the installation place of ATS, a space of 1.1m or more shall be ensured, the back 1.1m or more, the top 0.5m or more to ensure easy installation, cooling and maintenance.

Cable trench

The cable connection of ATS adopts bottom inlet and bottom outlet. Cable trenches are recommended to ensure easy installation and maintenance.

The cable trenches are often designed and constructed by the construction side based on relevant standards, with the equipment weight and dimensions required to be considered. Good electrical connection is needed between different cable trenches and GND terminals.

• Wiring specification
  Cables in ATS can be classified into either power cables or data cables. In cabling, the power cable shall be kept far away from, and the cable shall be kept in right angle at cross. The cable shall be as short as possible, and an appropriate distance shall be kept to the power cable.
  The power cable and data access shall be placed in different cable trenches respectively to avoid lengthy routing between the power cable and other cables, so as to reduce the electromagnetic interruption caused by sudden change of the output voltage. The distance among the power cable and data access shall be more than 0.2m. When the cables are crossed, the cross angle shall be 90 degrees, while the distance can be reduced appropriately.

• Ventilation requirement

• In operation, ATS will produce a lot of heat. When ambient temperature is too high, the electrical property of the equipment may be affected, the equipment may even be damaged. Therefore, the heat release shall be fully considered in designing the control room to ensure operation of the equipment in high efficiency. In front of the installation place of ATS, a space of 1.5m or more shall be ensured, the back 0.6m or more, the top 0.6m or more to ensure easy installation, cooling and maintenance.

• Ventilation environment
  To satisfy the ventilation requirement of ATS, its installation environment shall meet the following conditions:
  ※ ATS shall be prevented from being installed in the place of poor ventilation condition and insufficient air flow;
  ※ The air inlet shall have enough air supplementation.

• Ventilation equipment
  To ensure safe and reliable operation of the equipment, the ambient temperature must be within the permission range –25°C~ 55°C, therefore, appropriate ventilation devices must be equipped with to release the heat generated by the equipment. We suggest the ventilation rate is more than 3665m³/h.

1. There must be ventilation equipment inside the distribution room to ensure release of the waste heat generated by ATS from the equipment, and allow for maximum ambient environment temperature. This can be realized from installation of exhaust devices;
2. Another fan can be added at the air duct outlet to exhaust the air out and ensure balanced pressure;
3. The direction of the air outlet shall be selected according to the local actual wind direction;
4. Pay attention to the dustproof measures and waterproof design at the air inlet and outlet;
5. If more air ducts are required, its dimensions shall be designed by the professionals according to the air output amount.

• Other protections
  With IP20 of protection level, ATS is appropriate to be installed in dry and clean environment. Meanwhile, water leakage of the house shall be prevented, as it may damage ATS. According to EMC requirement and noise level, ATS shall be installed in industrial environment.

Tools and spare parts required for whole machine installation

Tools and spare parts required for installation is as follows:

• Hoisting crane, forklift or fork lift truck (with the capacity for bearing the weight of the ATS)
• Torque wrench
• Screwdriver
• Wire stripper
• Terminal crimping machine
• Heat dryer
• Megger and multimeter

Mechanical installation

Transportation of packaged whole machine

This ATS is transported as an integrated unit, and the user can hoist it from the bottom with a forklift, or move it with a hoisting crane or crane.
Note 1: ATS is integrated and cannot be dissembled either in transportation or installation. Any fault attributed to modification unauthorized by the ATESS is beyond the quality assurance.
Note 2: In movement, tilt, violent shake or sudden force upon ATS shall be prevented, such as sudden down of lifting.
Note 3: Please read carefully the labeled parameters to select an appropriate transportation means and storage place.
We suggest the user make use of forklift to move ATS if possible.

To keep the equipment in a better protective status, please adopt transportation with package as much as possible, and comply with the labels printed on the package in transportation:

friction damage to ATS
| Keep away from moisture

ATSs whose packages are not demolished can be moved with forklift, hoisting crane or crane. In moving, attention shall be paid to the weight painted on the package to ensure enough load capacity of the devices. As the gravity center of the equipment locates at the lower place symmetrical in front and back and left and right, the support point or hoisting point shall be arranged reasonably in transportation.
The forklift transportation is the standard one. The gravity center of the cabinet in transportation should locate between two forks of the forklift. The big-size ATS may block driver’s sight, and it shall be treated with cooperation of the aid personnel.

Movement and installation of bare machine

• Demolish the package of ATS
  Please demolish the packaged cabinet of the equipment according to the following procedures:
  Procedure 1: Demolish the wood side and roof of the packaged cabinet
  Procedure 2: Demolish the out-set package material on the machine
  Procedure 3: Demolish the fastening screws between the machine and the pallet
  ① Demolish the front and back cover lids of the pedestal;
  ② Screw off the hold-down nuts at the bottom of the wood pallet;
  ③ Remove the screws, and ATS will depart from the wood pallet.

• Movement and installation of bear machine
  ATS with demolished package can be moved with forklift, hoisting crane, slide rail or crane. If the package demolished place is far from the final installation place, it can be transported with forklift containing wood pallet.
  If the wooden pallet at the bottom of the machine has been removed, when using the forklift, the front and rear cover plates of the base need to be removed first, and the center of gravity should be placed in the middle of the two forklifts, and then start lifting and transporting, as shown in the following figure:

Caution, risk of danger
We must act slowly and gently when transporting ATS with forklift to avoid violent vibration of ATS or collision with other objects.

If lifting method is used for moving, please pay attention to the lifting position, ensure that the lifting angle is 70 °, and be cautious of the center of gravity position of ATS.

NOTE:

• It is necessary to always pay attention to the position of the center of gravity of ATS.
• Take necessary auxiliary measures to ensure the safety of transportation personnel;
• Take necessary auxiliary measures to ensure that the equipment is delivered to the final installation site.

Electrical installation

Input and output requirements

Caution, risk of danger

• There is a danger of electrical shock of high voltage in ATS’ operation; only electricians of professional skills can operate.
• All connections with this equipment shall be done under non-voltage state.
• ATS may be damaged if input or output terminal is incorrectly plugged.
  Failure of acting upon this information may cause serious personnel injury or significant property loss even to death.

Load
The total power of load input shall be within 500kW.

Three phase grid connection
Grid required to be connected with the system is three phase grid, and should be in accordance to the previous agreed grid level. Otherwise, damage to the machine due to voltage level problems is not in the scope of warranty.

Cable requirements

1. Please select the corresponding withstand voltage cable according to the voltage level.
2. The current will change due to different voltage value. Please calculate the corresponding cable diameter according to the actual voltage range. The following table only provides cable requirements for the minimum operating voltage for your reference .

| ATS30| ATS50| ATS100| ATS150
---|---|---|---|---
Diameter (mm 2)| Aperture| Diameter (mm 2)| v”,perture| Diameter (mm 2)| Aperture| Diameter (mm 2)| Aperture
HPS input| At least one 35 mm’ cables each phase| CDS| At least om 50 mm’ cables each phase| CDS| At least onE 95 mm’ cables each phase| CD 10| At least two 95 mm’ cables each phase| CDS
Grid input| At least one 35 mm 2 cables each phase| CDS| At least om 50 mm 2 cables each phase| CDS| At least onE 75 mm 2 cables each phase| CD 10| At least two 95 mm 2 cables each phase| CDS
DG input| At least one 35 mm2 cables each phase| CDS| At least om 50 mm’ cables each phase| CDS| At least onE 95 mm2 cables each phase| CD 10| At least two 75 mm2 cables each phase| CDS
N line| At least one 35 mm’ cables each phase| CDS| At least om 50 mm’ cables each phase| CDS| At least onE 95 mm’ cables each phase| CD 10| At least two 75 mm’ cables each phase| CDS
Ground line| At least 16mm’ special yellow and green wire| CDS| At least 16mm’ special yellow and green wire| CDS| At least 35mm’ special yellow and green wire| CD 8| At least 50mm’ special yellow and green wire| CDS
Communication
line| 0.75mm’

special twisted pair shielded communication cable

| | 0.75mm’

special twisted pair shielded communication cable

| | 0.75mm’

special twisted pair shielded communication cable

| | 0.75mm’ special twisted pair shielded communication cable|

AC side wiring

Caution, risk of danger
When connecting the AC grid, cut off the circuit breaker at the AC side to ensure that the AC wire connecting to terminals has no electricity

The output voltage of the AC side of ATS is 400V, the wiring method of AC side and grid side is as follows:

1. Cut off the circuit breaker at grid side, to ensure that the AC wire connecting to terminals has no electricity. Confirm it with a multimeter.

2. Ensure that the wiring phase sequence at AC side is in consistent with the phase sequence at grid side.

3. Strip the insulation skin off at the end of the cable

4. Crimping copper nose

5. Put the exposed copper core of the stripped wire head into the crimping hole of the copper nose.

6. Use the terminal crimper to compress the copper nose of the wiring, and the number of

7. crimping shall be more than two.

8. install the shrink fit sleeve.

9. the heat shrinkable sleeve which is more consistent with the cable size, length is about 5cm.

10. The heat shrinkable sleeve shall be sleeved on the copper nose of the wiring to completely cover the
    wire pressing hole of the copper nose.

11. Use a heat blower to tighten the heat shrink sleeve.

12. Connect “L1” cable to “L1” of AC distribution cabinet, i.e. phase a (U). Select the bolts that match the copper nose.

13. connect “L2” of AC output to “L2” of AC distribution cabinet, i.e. phase B (V); connect “L3” of AC output to “L3” of AC distribution cabinet, i.e. phase C (W); connect N-line to N wire on ATS.

Diesel generator wiring

The connection between diesel generator and ATS is the same as that of power grid. Connect the diesel generator to the diesel generator access port of ATS.

Note: all circuit breakers in ATS are with silk screen printing. When connecting to power grid and DG, they must be connected correspondingly. The wrong position or phase sequence are not allowed. Otherwise, the system will not operate normally and even damage the machine.

Earthing

ATS must be earthing well for safety; Please make sure of the connection between PE in power distribution cabinet and PE copper in ATS good; and make sure the earthing cable more than half of load cable, and earthing resistance is not lower than 4Ω.
All wiring into the channel at the bottom of ATS to be all the wiring is completed, the connection port must be sealed with dust cotton, to prevent dust from entering the inside of ATS.

Connect several connecting wires on the PE copper bar as some parts inside the energy storage controller need to be grounded, please do not change them without permission, so as to avoid electric shock

Communication

ATS communicates with HPS via CAN. The following figure is the schematic diagram of the control board interface.

ATS internal power supply wiring

The internal power supply of ATS is DC 220V. It takes power from CN3 of BUCK board on HPS.

Commissioning

Inspection before operation

Before ATS is put into operation, its installation shall be inspected. At least two staff do the inspection according to the items listed below to ensure the correctness of the installation.

Inspection items for installation

• There is no deformation or damage to ATS.
• Bottom of ATS is fixed securely, the foundation support is stable and reliable.
• There is enough space around ATS.
• The temperature, humidity and ventilation conditions of the environment where ATS is located meet the requirements.
• There is enough cooling air for ventilation.
• Cabinet sealing protection is complete and reliable

Electrical inspection

• ATS is grounded completely and firmly.
• The grid voltage matches the rated output voltage of ATS.
• The phase sequence of grid connection is correct, and the tightening torque meets the requirements.
• Cable number is marked correctly and clearly.
• The insulation protection cover is complete and reliable, and the danger warning label is clear and firm.

Other inspection

• All useless conductive parts shall be tied with insulating ties.
• There are no tools, parts, conductive dust or other foreign matters left inside the cabinet.
• There is no condensation of moisture or ice in the cabinet.

Power on steps

In addition to ATS switch opening, other circuit breakers inside ATS are closed. The power of ATS board is taken from HPS. After the battery circuit is closed, the board is powered on.

Routine maintenance

Regular maintenance

Maintenance and repair

CAUTION!
All maintenance and repair operations on the ATS can only be performed when the ATS is safely disconnected from all external connections, and it is confirmed that these power supplies will not be connected again and wait for at least 5 minutes.

Only professional technicians familiar with the system operation can perform such operation.

Disconnect the circuit breaker

Disconnect all switches to ensure that ATS does not accidentally re-connect. Use a multimeter to test, make sure the device is disconnected and voltage free.

Maintenance and modification

Only personnel authorized by ATESS can maintain and modify ATS. To ensure personal safety, please use only the original components provided by the manufacturer. Otherwise there will be no guarantee on compliance with relevant certification standards in terms of electrical safety, EMC, etc.

CAUTION!

1. After power off, wait for 5 minutes to confirm the safety before maintenance.
2. When safety assured, the disassembly and assembly work could be carried out .

Regular maintenance

In order to ensure the normal operation of ATS, regular maintenance work is required.
Recommended routine maintenance cycle and work, as shown in Table 7-2.

Figure7-2 Routine maintenance work

CAUTION!
The maintenance operation of ATS must be carried out when all circuit breakers of ATS are disconnected. After the ATS circuit breaker is disconnected, some devices still have residual voltage. Please wait for at least five minutes to confirm safety before maintaining ATS to prevent electric shock.

Appendix

Specification

*H1500

| W700*D600

*H1700

| W700D500 H1650| W800D600 H1700
Weight (kg)| 90| 100| 124| 200
Communication interface| CANA/485| CANA/485| CANA/485| CANA/485
HPS circuit breaker| 100A| 250A| 400A| 630A
Grid circuit breaker| 100A| 250A| 400A| 630A
DG circuit breaker (optional)| 100A| 250A| 400A| 630A

Atess Factory warranty

Warranty period

The warranty period of this product is one year. If otherwise specified in the contract, the contract shall prevail.
During the warranty period, the customer shall show the invoice and date of purchase to the service personnel of ATESS. At the same time, the nameplate mark on the product shall be clear and visible, otherwise, ATESS has the right not to provide warranty service.

Warranty conditions
In the event of failure during the warranty period, ATESS will repair or replace the product free of charge; The failed machine shall be owned by ATESS; the customer shall Set aside some time to repair the faulty machine.

Liability exemption

In case of the following circumstances, ATESS has the right not to conduct warranty:
Products without logo of ATESS Power Technology logo;
The product or component that has exceeded the valid warranty period of ATESS;
Failure or damage (such as high temperature, low temperature, too wet or dry, high altitude, unstable voltage or current, etc.) caused by working in beyond- specified environment or wrong installation, storage or use that violates the instructions;
Failure or damage caused by unauthorized installation, repair, modification or disassembly;
Except for those authorized by the after-sales center of ATESS;
Failure or damage caused by using components that not supplied by ATESS;
Failure, damage or transportation damage caused by accident or human factors (operation error, scratching, carrying, bumping, improper voltage connection etc.), ;
Failure or damage caused by force majeure (such as earthquake, lightning, fire etc.);
Failures or damages caused by other factors rather than quality problems of the supplied product itself(including components).

References

• Atess Power Technology

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