CIRCUTOR OT2-60D User Manual

DIELECTRIC STRENGTH TESTER FOR

ISOLATING OILS

OT2-60 D

( Cod. P60312. )

INSTRUCTION MANUAL

(

M98227301-03-09A)

(c)

CIRCUTOR S.A.

Please Refer to
Documentation

Before Operation

DIELECTRIC STRENGTH TESTER FOR ISOLATING OILS OT2-60D --------- Page 2

DIELECTRIC STRENGTH TESTER FOR ISOLATING OILS OT2-60D --------- Page 3

DIELECTRIC STRENGTH TESTER FOR ISOLATING OILS

OT2-60D

1. BASIC INSTRUCTIONS

1.1. Delivery spot check

This manual is issued to help all the users to install and use the dielectric
strength tester for isolating oils OT2-60D, and also to help them to get the best
from it. After receiving the equipment, please check the following points:

(a) The equipment corresponds to your order specification
(b) Check if any damage was done during the shipment process
(c) Verify that you have received all the components specified on 2nd point.

1.2. Connection procedures

The manual you hold in your hands contains information and warnings that the
user should respect in order to guarantee a proper operation of all the functions
of the OT2-60D and keep its safety conditions. Also you must follow the usual
security actions.

1.3. Considerations related to the standards

All the comments and advices that you can read on this manual related to the
procedure that you must follow to do dielectric strength tests, are referred to the
IEC 156 standard, being only valid if you are following it. If you want to follow
another standard, the comments and advices of this manual can be different
(Go to 10th point).

2. VERIFICATION OF THE DELIVERIED COMPONENTS

When you receive the equipment, please check that the following components are
included

:

2.1. OT2-60D equipment:

DIELECTRIC STRENGTH TESTER FOR ISOLATING OILS OT2-60D --------- Page 4

2.2. Protection Unit

Open the equipment’s door and the protection will be inside with the others
components:

2.2.1. Test Cell

Inside the protection unit it is the test cells:

2.2.2. Gauge, Allen spanner and Fuse

Look for in the protection unit where it is the bag of fuses. Allen and
gauge are in the test cell.
The delivered gauge is 2,5 mm ± 0,05 mm in width, according to the
IEC-156 standard .

DIELECTRIC STRENGTH TESTER FOR ISOLATING OILS OT2-60D --------- Page 5

2.3. Connection cable:

It’s a standard connection cable.

3. INTRODUCTION

The OT2-60D range is automatic equipment especially designed to test the disruptive
voltage of isolating oils in new or used transformers, cables with oil, automatic
switches, capacitors, etc.

The disruptive voltage is not a basic property of the oil, but it indicates us the degree
of contamination of this oil (water, solid materials in suspension), allowing us to decide
on the possibility of carrying out a treatment of drying and filtration, or replacing the oil.

The method that the OT2-60D uses can be applied to oils of nominal viscosity of up to
350 mm2/s at 40ºC, according to IEC-156 standard.

The OT2-60D is supplied with a complete series of protectors making it highly
protected and reliable.

It is easy to handle, all buttons or illuminated switches are on the front control panel.
The test cell is especially designed to easily change the electrodes in accordance with

the different standards in operation, the easy insertion into the registering transformer
terminals and for its complete cleaning.

DIELECTRIC STRENGTH TESTER FOR ISOLATING OILS OT2-60D --------- Page 6

4. DESCRIPTION OF THE CONTROLS

Next we can see a representation of the controls of the equipment and the description
of its functions:

Safety Symbol Identification

Warning! Please refer to documentation before
operation

Warning! Hazardous
Voltage