DT-13Q type synchronous relayDetailed product description：

1 Purpose
The DT-13Q synchronous check relay is used in automatic reclosing lines of two end power supply lines to check the presence of voltage on the line and the phase difference between the voltage vectors on the line and the substation busbar.

2 Structure and principle
2.1 This relay adopts embedded installation, and its main body is a plug-in structure
2.2 The main body of this relay is the same as the DT-13 synchronous relay.
2.3 DT-13Q type relay is an electromagnetic instantaneous action relay. A coil consisting of two windings is installed on each pole of the magnetic system. One winding of a coil is connected in series with the winding of another coil.
2.4 The relay responds to the geometric difference in voltage vectors applied to terminals 2-4 and 8-6. Adjust the phase angle difference by rotating the pointer to change the reaction force of the spring. The scale is expressed in degrees.
The 2.5 relay has one dynamic contact and one dynamic contact.
The appearance and installation dimensions of the 2.6 relay are shown in Figure 2.



Figure 1 Internal wiring diagram


Figure 2 Appearance and installation dimensions of DT-13Q relay

Technical requirements for DT-13Q synchronous relay
3.1 The specifications for the rated voltage data of relays are shown in the table below.

relay model	Rated voltage (V)		Number of the outgoing terminal
DT-13Q／90	Coil 1 Coil 2	sixty thirty	2-4 8-6
DT-13Q／120	Coil 1 Coil 2	sixty sixty	2-4 8-6
DT-13Q／130	Coil 1 Coil 2	one hundred thirty	2-4 8-6
DT-13Q160	Coil 1 Coil 2	one hundred sixty	2-4 8-6
DT-13Q／200	Coil 1 Coil 2	one hundred one hundred	2-4 8-6
DT-13Q／254	Coil 1 Coil 2	one hundred and twenty-seven one hundred and twenty-seven	2-4 8-6

3.2 At rated voltage, the relay operates when the phase angle difference between voltage vectors is within the range of 20 ° to 40 °.
3.3 At rated voltage, the return coefficient of the relay calculated by angle shall not be less than 0.8,
3.4 At rated voltage, the power consumed by each winding of the relay shall not exceed 3.5VA.
The conductive part can withstand AC 50Hz and voltage 2kV for 1min for dielectric strength of non charged metals.
When the voltage is below 220V and the current is below 2A, the breaking power of the contacts in a DC circuit with inductive load (time constant T is 10-3S) is 50W, and the AC circuit is 250VA.
The weight of the 3.7 relay is 1.6kg.

4 Ordering Instructions
4.1 Name and model of relay
4.2 Rated voltage of relay.
4.3 Number of relays.

DT-13Q type synchronous relay（No image available）