Low insulation in battery charger and discharge panel

Equipment Specification:

Battery charger & discharger panel 

• Brand : KTE 
• Voltage : 440V,60Hz

Battery Switch Board (Battery Charger & Discharger)

1. Equipment Specification:

a. Battery Switch Board (Battery Charger & Battery Discharger) 
b. Brand : UZUSHIO Electric co.,ltd. 
c. Battery 

• Capacity : 200AH
• Voltage : 24VDC
• Current : 20A 

d. Charger

1. Source : 440V
2. Frequency : 60Hz.
3. Output : DC 22- 32V
4. Charge : 30A

Repair Battery Switch Board (Battery Charger & Discharger)

2. Problems occurred ( information from the owner / user ):

1. Indicator lights to the monitoring fuse does not work, the lights remain lit fuse in an is lost. 
2. VU ( Volume Unit) to monitor resistant grounding does not show an accurate value in monitor mode and test mode. 
3. Wires inside the panel so that it takes less tidy cable track

VU Unit

3. Inspection results

1. Indicator lights to the monitoring fuse does not work, the lights remain lit fuse in an is lost.

a. Trip Circuits cut off / burned
Specification of Trip Circuit:

· Type P450 15A (P4-15 250V/15A) No brands

b. Rectifier Protect Fuse is not standard / modifications have been done
Specification of Rectifier Protect Fuse:

· Fuse 30A

Battery Switch Board

2. VU ( Volume Unit) to monitor resistant grounding does not show an accurate value in monitor mode and test mode

Possibilities occur:

a. There is a problem in the Accessories Unit

Specification of Accessories Unit:

b. VU meter unit for grounding resistance meter problem

Specification of VU meter unit:

• Brand : Toyo Keiko

• Type : NN-220A

c. Timer problem

Specification of Timer unit:

• Brand : Omron

• Type : H3B4

d. Selector switch for Monitor and Test Position problem

e. Ground Connection Lost
3. Wires inside the panel so that it takes less tidy cable track

a. Too many spare cables are not neatly.

 Load Control unit Battery Switch Board

4. Problem solving

Indicator lights to the monitoring fuse does not work, the lights remain lit fuse in an is lost.

· Replacement of trip circuit

· Note: There should be more spare ‘trip circuit’ , since the trip circuit will be cut off in the event of mains fuse broke. The possibility of breaking up the frequent occurrence of very large.

· Replacement of mains fuse with a fuse that is safe / standarad
VU ( Volume Unit) to monitor resistant grounding does not show an accurate value in monitor mode and test mode.

· Check and repair if necessary on the unit accessories, VU meter, Timer, Selector Switch, and Grounding Connection.

· Note: Possible replacement could occur in the unit VU meter, Timer, Selector Switch.

1. Wires inside the panel so that it takes less tidy cable track

Installing Cable Duct/ Cable Tracking

Problems that occur damage to the synchronization panel

Generator 1 failed Synchrone to Generator 2, after a few seconds do synchronize MCCB Generator 1 Trip.

Possible errors occur on the AVR generator 1 or 2, also at supporting components such as:  Reverse Power Relay.

Generator

The work that has been done:

1. Check the voltage on the generator, through the settings made on the AVR Generator 1 and Generator 2. Change the settings by turning a few degrees at a variable resistor, need special labeling before doing it with a marker that is not easily lost. 

This reel considering changes that could be made more aggravating circumstances for AVR settings.

Sinchronize Panel

2. Check the second frequency generator, are like that done at the same point above, several types of AVR presents some variable resistor for setting the duty of each such change in voltage and frequency changes.

3. Setting the output voltage of the generator 1 through the AVR, does not solve the problem. Perform the next step, check the technical components such as Reverse Power Relay, Control Sync and others.

AVR

4. Check Reverse Power Relay, detectable damage to the Reverse Power Relay generator unit 1

The next solution;

Replacement Reverse Power Relay with the following specifications: Reverse Power Relay

• PH 1/3 6 / 4W Reverse Power Trip
• Type: M200 RP1
• Series No. : 240V L / N 50/60 Hz 6A
• Operation: Energize On Trip

Reverse Power Trip

I will discuss in the article type Reverse Power Trip with type M200RP1

Detail project:

Vessel	ASL Glory
Equipment type	Sinchronize Panel
Service Issue	Error proses synchronize
Location	ASL Shipyard